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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 5578. Отображено 100.
21-06-2012 дата публикации

Uav-delivered deployable descent device

Номер: US20120152654A1
Автор: Robert Marcus
Принадлежит: Individual

An unmanned aerial vehicle (UAV) may be used to deliver a descent system to an elevated location at which people await rescue, such as people trapped in an upper story of a burning building. The UAV may deliver the descent system, attach it to the building, and deploy the descent system. After deployment, the descent system may be tensioned to prevent sway and facilitate descent. Standoffs may be installed or integrated into the descent system to provide for adequate handholds for descending individuals. Various equipment and methods used in such systems are described herein.

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Номер записи: 1
09-08-2012 дата публикации

Remote Controlled Overhead Ladder System

Номер: US20120199417A1
Автор: Roy G. PARTON, Steven M. Richey
Принадлежит: Precision Ladders LLC

A remote controlled overhead ladder system including a ladder structure having at least a first section and a second section. The ladder structure can be mounted to a support structure located above an opening of the overhead surface, and can include a remote controlled lifting cable connected to the first and second sections such that upon receipt of a remote control signal, the lifting cable pivots the second section toward a front surface of the first section until the second section is oriented adjacent to the front surface of the first section, at which time the lifting cable pivots the first section and the adjacent second section as a group toward the overhead surface until the ladder sections are contained above the overhead surface.

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Номер записи: 2
21-02-2013 дата публикации

Integrated highly reliable person overboard self-rescue system

Номер: US20130043092A1
Автор: Thomas W. Clardy
Принадлежит: Individual

A safety equipment deployment system includes a sensor for receiving input, circuitry for determining whether the input satisfies a time pattern requirement and, responsive to determining satisfaction of the time pattern requirement, triggering release of safety equipment. The safety equipment can include a foldable ladder fixed to a stanchion. The safety equipment can include a device attached to a cord that extends from a bobbin below deck, through a hollow stanchion, and out a top end of the stanchion. A safety deployment system of a marine ship includes a switch operable exteriorly of the ship hull and below deck, for triggering release of safety equipment to be extended exteriorly of the hull to at least as low as the waterline

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Номер записи: 3
06-06-2013 дата публикации

Curved Ladder for Tank Access

Номер: US20130140109A1
Автор: AMBRIZ STEVEN RICHARD
Принадлежит:

A ladder is designed for a tank having a vertically extending side wall and a top of a convex curved profile, with an access point near the top center of the convex curved top, the ladder having a pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end, the curved section extending over the top of the tank and toward the access point, with plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails. A separate hand grip may be mounted on the tank between the ladder and the access point of the tank. 1. A ladder and support assembly comprising:a. A pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end;b. A plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails; andc. A hand grip separate from the ladder for supporting the hand of the user independently of the ladder.2. The ladder and support assembly of claim 1 , further including at least one mounting bracket for securing the ladder to a wall.3. A ladder and support assembly for a tank having a vertically extending side wall and a top of a convex curved profile claim 1 , with an access point near the top center of the convex curved top claim 1 , the ladder and support assembly comprising:a. A pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end;b. A plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails;c. At least one mounting bracket for securing the ...

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Номер записи: 4
25-07-2013 дата публикации

ELEVATED WORKING PLATFORM AND RELATED METHODS

Номер: US20130186710A1
Автор: Jonas Gary, Moss N. Ryan, Penrod Darius S., Peterson Sean, RUSSELL Brian
Принадлежит: WING ENTERPRISES, INCORPORATED

Elevated work platforms, as well as associated methods, are provided. In one particular embodiment, an elevated platform apparatus is provided comprising a first rail assembly having a pair of rails coupled with a plurality of rungs, a second rail assembly hingedly coupled with the first rail assembly, a platform configured to rest upon a portion of the first rail assembly and the second rails assembly and a cage associated with the platform. The cage may include at least one bar and at least one gate, the at least one gate being configured to swing in a first direction upon a user stepping on to the platform from the first rail assembly, and then swing back to a closed position after the user is standing on the platform. The at least one gate is also limited from being displaced in a second direction, opposite the first direction, beyond the closed position. 1. An elevated platform apparatus comprising:a first rail assembly having a pair of rails coupled with a plurality of rungs;a second rail assembly hingedly coupled with the first rail assembly;a platform configured to rest upon a portion of the first rail assembly and the second rails assembly; anda cage associated with the platform, the cage including at least one bar and at least one gate, the at least one gate being configured to swing in a first direction upon a user stepping on to the platform from the first rail assembly, and swing back to a closed position after the user is standing on the platform, the at least one gate also being limited from being displaced in a second direction, opposite the first direction, beyond the closed position.2. The apparatus of claim 1 , wherein the platform is pivotally coupled with the first rail assembly and in selective locking engagement with the second rail assembly.3. The apparatus of claim 2 , wherein the at least one gate includes a pair of gates adjacent one another.4. The apparatus of claim 3 , wherein each gate of the pair includes a pivoting coupling member ...

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Номер записи: 5
22-08-2013 дата публикации

Fiberglass Reinforced Plastic Products Having Increased Weatherability, System and Method

Номер: US20130213739A1
Автор: Richard M. Kelly
Принадлежит: Werner Co

Climbing products containing rails decorated using veil products colored, patterned, painted or in combination with marking methods such as company names and logos and resin formulation designed to withstand exposure to UV radiation with minimal change in appearance which create specific appearances for applications, enhance weathering performance, and facilitate processing efficiency. A combination of a filler free resin and coated veil systems to create a synergistic weather resistance surface with self contained color, pattern, picture, logo or combination of said same for climbing products. A system for producing components. Various methods, system, a ladder rail.

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Номер записи: 6
07-11-2013 дата публикации

LADDER

Номер: US20130292205A1
Автор: Frick Rory, Nelson Kirk
Принадлежит:

A ladder for use with heavy machinery such as farm equipment, the ladder having platform steps, the ladder being convertible between a deployed position for supporting a person or other load, to a storage, scaffold, or ramp position in which the steps lie in a generally planar arrangement. When deployed, the ladder steps remain parallel to each other. The ladder includes two frames, the frames pivotably connected by a plurality of platform steps, one of the frames being pivotably attached to a piece of heavy machinery. The frame nest within one another in the storage configuration. The pivotable attachment to the heavy equipment may be wheels on the ladder frame that engage horizontal tracks on the heavy equipment, allowing the ladder to be lifted up, the frames nested, and the ladder in the storage configuration slid along the tracks and stored. 1. A ladder for use with heavy machinery , convertible from a ladder configuration to a storage configuration , including:A first and second ladder frame, each having a first end and a second end each ladder frame including two rails connected by a plurality of support rods,A plurality of steps, each step connected to a support rod on the first ladder frame and to a support rod on the second ladder frame, the distance between the support rods connected by the step being substantially the same as the length of the step,The first end of the second ladder frame being pivotably connected to the heavy machineryThe first and second ladder frames maintaining a parallel relationship as the ladder is converted from a ladder configuration to a storage configuration.2. The ladder of claim 1 , the ladder further including a height adjustable extension bar mounted at the second end of the second frame claim 1 , the extension bar including uprights for insertion into the rails of the first frame claim 1 , the uprights connected by a cross member claim 1 , the cross member resting on the ground when the ladder is in the ladder ...

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Номер записи: 7
07-11-2013 дата публикации

Step Stool and Method

Номер: US20130292206A1
Автор: Parker Thomas W.
Принадлежит: Werner Co.

A folding step stool includes a front rail assembly. The step stool includes a rear rail assembly, pivotally connected to the front rail assembly, having a crossbar. The step stool includes a step pivotally attached to the front rail assembly having notches which fit over the crossbar when the stool is in an open position. The step stool includes a linkage assembly pivotally and fixedly attached to the step and pivotally and fixedly attached to the crossbar. The linkage assembly compresses to allow the notches to fit over the crossbar and the linkage assembly exerting a force to maintain the crossbar in the notches when the stool is in the open position. A method for securing a step stool includes the steps of moving the notches of a step against a crossbar of a rear rail assembly pivotally connected to a front rail assembly of the step stool. There is the step of compressing a linkage assembly pivotally and fixedly attached to the step and pivotally and fixedly attached to the crossbar to allow the notches to fit over the crossbar. There is the step of exerting a force with the linkage assembly to maintain the crossbar in the notches when the stool is in the open position. 1. A folding step stool comprising:a front rail assembly;a rear rail assembly, pivotally connected to the front rail assembly, having a crossbar;a step pivotally attached to the front rail assembly having notches which fit over the crossbar when the stool is in an open position; anda linkage assembly pivotally and fixedly attached to the step and pivotally and fixedly attached to the crossbar, the linkage assembly compresses to allow the notches to fit over the crossbar and the linkage assembly exerting a force to maintain the crossbar in the notches when the stool is in the open position.2. A step stool as described in wherein the linkage assembly includes a bracket fixed to the step and a link attached to the bracket.3. A step stool as described in wherein the link is made of a bent metal wire. ...

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Номер записи: 8
09-01-2014 дата публикации

ROOF ACCESS ARRANGEMENTS

Номер: US20140008150A1
Автор: Baglin Neil Ernest
Принадлежит: EASI-DEC ACCESS SYSTEMS LIMITED

A roof ladder construction includes a roof hook assembly and a ladder to which the roof hook assembly is pivotally mountable for movement between two operative positions, a first of the operative positions being a position in which the roof hook assembly may extend over a roof ridge for engagement with a remote roof surface at a side of the roof opposite that at which the ladder is positioned and the other, second position being one in which the roof hook assembly does not engage with the remote surface of the roof. 120-. (canceled)21. A roof ladder construction comprising a roof hook assembly and a ladder to which the roof hook assembly is pivotally mountable for movement between two operative positions , a first of said operative positions being a position in which the roof hook assembly may extend over a roof ridge for engagement with a remote roof surface at a side of the roof opposite that at which the ladder is positioned and the other , second position being one in which the roof hook assembly does not engage with said remote surface of the roof.22. A roof ladder construction according to wherein movement of the roof hook assembly is remotely controllable.23. A roof ladder construction according to wherein a control member for remote control of movement of the roof hook assembly extends through a ladder stile.24. A roof ladder construction according to wherein the control member extends to that end of the stile which is remote from the ladder end region at which the roof hook assembly is pivotally mountable.25. A roof ladder construction according to and comprising a remotely controllable locking element for securing the roof hook assembly relative to the ladder in at least one of the two operative positions.26. A roof ladder construction according to wherein an actuation member extends through a ladder stile for remote control of said locking element.27. A roof ladder construction according to wherein the actuation member extends to that end of the stile ...

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Номер записи: 9
13-02-2014 дата публикации

Deployable Hybrid Mobile Elevating Access Platform

Номер: US20140041963A1
Автор: OShea Alan
Принадлежит:

The invention is a mobile maintenance stand that combines the function of an adjustable stairway and hydraulic scissor lift that independently elevates and descends an access work platform to support maintenance tasks on commercial and military aircraft. The elevating access work platform has an extended reach of 144′ and is initiated by a secondary hydraulic scissor lift that promotes upward extension beyond the parameters of the adjustable stairway reach, to provide further maintenance access. The additional extension range of the access work platform with a hydraulic scissor device, provides vertical movement to the work deck at all check levels. Further, this invention is self-contained that collapses to a compact dimension and be transported on an air cargo pallet. Thus, the invention's mechanical scheme of the scissor lift to extend access work platform beyond the adjustable stairway is novel and, is unlike any existing articulating stairway and, or scissor embodiments. 1. A hybrid mobile elevating access platform system comprising of:An adjustable height stairway element which can be elevated to provide safe aerial access platform for work at height, where in each step of the adjustable stairway element having the means to remain horizontal at all possible platform heights.An elevating platform element that provides secondary height adjustment. Whereas the elevating platform element having a means to remain parallel to the steps of the adjustable height stairway element at all possible platform heights.An elevating platform element that is generally located to the upper position of the adjustable height stairway, and where in the elevating platform element is generally accessible by means of an legally permissible step up dimension from the last step of the adjustable height stairway when in the collapsed condition.An adjustable height stairway element that is independently actuated.An elevating platform element that is independently actuated.2. A hybrid ...

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Номер записи: 10
13-02-2014 дата публикации

Fiberglass Reinforced Plastic Products Having Increased Weatherability, System and Method

Номер: US20140044821A1
Автор: Allison Stright Clapper, James Vincent Gauchel, Richard M. Kelly
Принадлежит: Werner Co

Climbing products containing rails decorated using veil products colored, patterned, painted or in combination with marking methods such as company names and logos and resin formulation designed to withstand exposure to UV radiation with minimal change in appearance which create specific appearances for applications, enhance weathering performance, and facilitate processing efficiency. A combination of a filler free resin or resin with filler and coated veil systems to create a synergistic weather resistance surface with self-contained color, pattern, picture, logo or combination of said same for climbing products. A system for producing components at a rate of greater than 5 ft/min. Various methods, system, a ladder rail.

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Номер записи: 11
20-03-2014 дата публикации

LADDER HAVING NARROW BASE

Номер: US20140076660A1
Автор: William Frame
Принадлежит:

A ladder includes a stair section having a plurality of steps, a vertical upright that connects to a top of the stair section, a base that connects a bottom of the stair section and a bottom of the vertical upright, and one or more wheels connected to the bottom of the vertical upright. The ladder may also include a front locking step and a rear wheel assembly. A narrow base extends between a step of the stair section above a bottom step or locking step and the vertical upright. 1. A ladder comprising:a stair section having a plurality of steps, a vertical upright that connects to a top of the stair section, a base that connects a bottom of the stair section and a bottom of the vertical upright, one or more wheels connected to the bottom of the vertical upright;a front locking step and a rear wheel assembly; anda narrow base extending between a step of the stair section above the front locking step and the vertical upright.2. The ladder according to wherein the base further comprising an elongated member located on about the centerline of the ladder.3. The ladder according to wherein the elongated base member comprises a rectangular assembly connected together.4. The ladder according to wherein the elongated base member connects to the second step of the stair assembly and extends substantially horizontally toward the rear of the ladder.5. The ladder according to wherein the elongated base member connects to the second step of the stair assembly and extends substantially horizontally toward the rear of the ladder.6. The ladder according to wherein the elongated base member has a width of no more than six inches.7. The ladder according to wherein the elongated base member wherein the elongated base member has a width of no more than six inches.8. A ladder comprising:a stair section having a plurality of steps, a vertical upright that connects to a top of the stair section, a base that connects a bottom of the stair section and a bottom of the vertical upright, one or ...

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Номер записи: 12
10-04-2014 дата публикации

DUAL TRACK LADDER WITH BRAKE MECHANISM THAT IS AUTOMATICALLY APPLIED TO THE UPPER TRACKS TO HOLD THE LADDER IN PLACE DURING USE

Номер: US20140097039A1
Автор: Kerr James F.
Принадлежит:

A ladder system includes an overhead track system, a ladder, a latch and a carriage. The overhead track system includes a first guide track and a second guide track. The carriage is operatively configured to move longitudinally along the first and second guide tracks and to move laterally between the first and second guide tracks. The ladder is pivotally mounted to the overhead track system. A lateral carriage brake is provided which prevents lateral movement of the ladder, and a longitudinal carriage brake is provided to prevent longitudinal movement of the ladder. The latch is operatively configured to affix the ladder to the carriage. 1. A ladder system comprising:an overhead track system including a first guide track, a second guide track, a carriage operatively configured to move longitudinally along the first and second guide tracks and to move laterally between the first and second guide tracks;a ladder pivotally mounted to the overhead track system;a lateral carriage brake operatively configured to prevent lateral movement of the ladder relative to the first and second guide tracks;a longitudinal carriage brake operatively configured to prevent longitudinal movement of the ladder relative to the first and second guide tracks; anda latch operatively configured to affix the ladder to the carriage.2. The ladder system as defined in wherein the carriage includes a mounting bar claim 1 , a first rod claim 1 , a second rod claim 1 , a first sidewall and a second side wall claim 1 , the first and second sidewalls being moveably affixed to the first and second tracks respectively claim 1 , the first and second rods each being welded to the first sidewall at a first end of the first and second rods claim 1 , and being welded to the second sidewall at a second end of the first and second rods claim 1 , the mounting bar being moveably affixed to the first rod and the ladder being pivotally mounted to the mounting bar.3. The ladder system as defined in wherein the ...

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Номер записи: 13
04-01-2018 дата публикации

HUNTING STAND

Номер: US20180000063A1
Автор: Ketz Patrick Allen, Rude Owen Gregory
Принадлежит:

A hunting stand is provided. A frame assembly includes a plurality of legs and a plurality of struts. A platform includes a pair of wheel spindles each extending from laterally from an opposing side of the platform. A seat is secured to an upper surface of the platform. The hunting stand includes an assemble position and a transport position. The assemble position includes the legs and struts of the frame assembly attached together in an upright position elevating the platform, and a top end of the ladder is secured to and extending downward from the platform in a vertical position. The transport position includes the legs and struts detached from one another, the pair of wheels secured to the pair of wheel spindles respectively and the top end of the ladder secured to and extending laterally from the platform in a horizontal position. 1. A hunting stand comprising:a frame assembly comprising a plurality of legs and struts;a platform comprising a flat upper surface having a first side, a second side opposite the first side, a front side and a rear side opposite the front side, wherein a first wheel spindle is laterally extending from the first side and a second wheel spindle is laterally extending from the second side;a ladder; anda pair of wheels, whereinthe hunting stand is configured to be arranged in an assemble position and a transport position,the assemble position comprising the legs and struts of the frame assembly attached together in an upright position elevating the platform with the flat upper surface in a horizontal position and the first wheel spindle and the second wheel spindle disposed along a horizontal axis, and a top end of the ladder secured to the platform in a vertical position;the transport position comprising the legs and struts detached, the pair of wheels secured to the first and second wheel spindles respectively and the top end of the ladder secured to the platform in a horizontal position.2. The hunting stand of claim 1 , wherein the ...

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Номер записи: 14
02-01-2020 дата публикации

LADDER SYSTEM FOR TRENCH SHORING

Номер: US20200003008A1
Автор: Heitkamp Theo, Schmeinck Bernd
Принадлежит: Klaus Stewering GmbH & Co. KG

The invention relates to a ladder system for trench shoring, comprising a lower ladder () which extends from the bottom of a trench over a lower subportion (T) of the height of the trench, and an upper ladder () which extends over an upper subportion (T) of the height of the trench up to a trench edge, wherein the upper ladder () is a suspension ladder for suspending onto a shoring panel (). A ladder system according to the invention is intended to increase the safety of the workers particularly for deep trenches. In a ladder system according to the invention, a platform () is arranged at the lower end of the upper ladder () is, and that the lower ladder () is a stepladder or leaning ladder which stands on the bottom of the trench. 1. A ladder system for trench shoring , comprising:a lower ladder which extends from the bottom of a trench over a lower sub-portion of the height of the trench;an upper ladder which extends over an upper sub-portion of the height of the trench up to a trench edge, wherein the upper ladder is a suspension ladder for suspending onto a shoring panel; anda platform is arranged at the lower end of the upper ladder,wherein the lower ladder is a stepladder or leaning ladder which stands on the bottom of the trench.2. A ladder system according to claim 1 , wherein the lower ladder and the upper ladder are arranged so as to be laterally offset with respect to one another claim 1 , andwherein the lower ladder and the upper ladder extend next to one another in an overlap region.3. A ladder system according to claim 1 , wherein at least one of the upper ladder and the lower ladder is height-adjustable.4. A ladder system according to claim 1 , wherein the platform has a peripheral railing.5. A ladder system according to claim 1 , wherein at least one supporting foot claim 1 , which is supported against the trench wall claim 1 , is arranged at the lower end of the upper ladder.6. A ladder system according to claim 1 , wherein a climb-in aid is ...

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Номер записи: 15
12-01-2017 дата публикации

UPRIGHT LADDER

Номер: US20170009526A1
Автор: Alagoz Zeynal
Принадлежит:

A climbing apparatus comprising a base, an upright member extending vertically upwardly from the base and having first and second sides and first and second carriages slidably locatable along the first and second side of the upright member. The apparatus further comprises a foot support associated with each of the first and second carriages, the carriages being rotatable supported by the carriage; and an upright engaging member extending from each foot support to selectably engage the upright when the foot support is rotated to a first orientation and to disengage from the column when the foot support is rotated to a second orientation. 1. A climbing apparatus comprisinga base;an upright member extending vertically upwardly from said base and having first and second sides;first and second carriages slidably locatable along said first and second side of said upright member;a foot support associated with each of said first and second carriages, said carriages being rotatable supported by said carriage; andan upright engaging member extending from each foot support to selectably engage said upright when said foot support is rotated to a first orientation and to disengage from said column when said foot support is rotated to a second orientation.2. The apparatus of wherein said upright includes front and rear surfaces.3. The apparatus of wherein said front surface includes a plurality of horizontal projections extending therefrom adapted to engage said upright engaging members of said foot supports.4. The apparatus of wherein said horizontal projections comprise lips having horizontal top surfaces.5. The apparatus of wherein said first and second sides of said upright includes tracks therein.6. The apparatus of wherein said tracks comprise c-shaped openings.7. The apparatus of wherein said first and second carriages include rollers locatable within said tracks of said upright.8. The apparatus of wherein said tracks include lips extending towards each other to contain ...

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Номер записи: 16
27-01-2022 дата публикации

LADDER ASSEMBLY

Номер: US20220025702A1
Автор: Hebert Casey Armand
Принадлежит:

A ladder assembly for use with a tree or other vertical support includes a first tube and a second tube that is nestable within the first tube. The second tube includes at least one movable step that is movable to one end of the tube to enable almost full insertion of the second tube into the first tube for compact storage and, when the tubes are separated from one another, the movable step is movable to the other end of the tube to provide an ideal step position for a climber. The ladder assembly achieves the same functionality as a telescoping pole but with fewer tube sections because the tubes are separable. 1. A ladder assembly comprising:first and second tubes;said first tube defining a first interior space;first, second, third, and fourth step members;said first step member being mounted to a first end of the first tube;said second step member being mounted to a second end of the first tube;said third step member being operatively connected to the second tube such that the third step member is selectively slidable along the length of the second tube;said fourth step member being mounted to a first end of the second tube;said ladder assembly being reconfigurable between a retracted configuration and an extended configuration;wherein the second tube is nested within the interior space of the first tube, and the third step member is adjacent the fourth step member when the ladder assembly is in the retracted configuration; andwherein the second tube is separated from the first tube and the third step member is mounted to a second end of the second tube when the ladder assembly is in the extended configuration.2. The ladder assembly of claim 1 , further comprising a third tube;a fifth step member being operatively connected to the third tube such that the fifth step member is selectively slidable along the length of the third tube;a sixth step member being mounted to a first end of the third tube;wherein the second tube defines a second interior space;wherein the ...

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Номер записи: 17
14-01-2016 дата публикации

BRACE FOR STEP LADDER

Номер: US20160010391A1
Автор: OTTEN Martinus Albert
Принадлежит:

A brace for use with a step ladder has a platform that resists shear forces and two runners. The runners are one located opposed sides of the platform and configured to fit over the unfolded struts of a step ladder. In use, a brace as described above is placed with its runners fitting over, and resting on, the struts of a step ladder. The brace stabilizes the ladder, helps prevent injury to the struts if the ladder falls over and may also force distorted struts into a better alignment. Optionally, the platform may also provide one or more surfaces for supporting tools, for example by way of a sliding shelf. Optionally, a separate tool shelf may be attached at the top of a step ladder. 1. A brace for a step ladder comprising ,a platform; and,two runners, one located on each of two opposed sides of the platform.2. The brace of wherein the platform resists shear forces in the plane of the platform.3. The brace of wherein the platform is continuous or discontinuous.4. The brace of wherein the runners each comprise a slot adapted to fit over the struts of a step ladder.5. The brace of wherein the runners comprises one or more latches selectively locatable across the slots.6. The brace of wherein the brace comprises a movable shelf claim 1 , for example a sliding shelf.7. The brace of wherein the shelf has a raised lip.8. The brace of wherein the runners are continuous or discontinuous.9. A method of bracing a ladder comprising a step of placing a brace according to over the struts of the ladder.10. The method of further comprising a step of locating one or more latches across the slots of the runners below the struts of the ladder.11. A shelf comprising two or more bolt holes configured to align with two or more bolt holes at the top of a ladder.12. The shelf of having a raised lip around the perimeter of the shelf claim 11 , holes for tools claim 11 , or an indentation for a paint can. This application claims the benefit of priority from U.S. Provisional Application No. ...

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Номер записи: 18
14-01-2021 дата публикации

Step stool with moveable handrail

Номер: US20210010327A1
Автор: Jason A. BOYER, Kyle J. Lawrence
Принадлежит: Dorel Home Furnishings Inc

A step stool includes a step frame including a plurality of legs and a handrail coupled to the step frame. The step frame is foldable so as to assume a flat profile for storage. The handrail is mounted on the step frame and is movable relative to the step frame. The handrail provides support for a user standing on the step frame.

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Номер записи: 19
10-01-2019 дата публикации

WINDOW WELL EGRESS APPARATUS

Номер: US20190010759A1
Автор: Snarr Daniel K.
Принадлежит:

This is a system that allows a small child to escape from a window well using a ladder and a window well cover. The ladder extends from the bottom of the window well cover and has a trigger that when activated slides the ladder and releases a trap door in the window well cover, thus allowing a person to climb the ladder and escape through the cover. 1. A window well egress apparatus , comprising:a main grate having a moveable subsection; a stationary section coupled to the main grate, the stationary section having a fulcrum; and', 'a sliding section, wherein the sliding section slides with respect to the stationary section, the sliding section having a catch element; and, 'a ladder, comprisinga counterweight element pivotally coupled to the sliding section and supported by the fulcrum, wherein in response to a downward force being applied to the sliding section of the ladder, the catch element is lowered and the moveable subsection opens.2. The window well egress apparatus of claim 1 , wherein the sliding section includes a slide bracket claim 1 , wherein the stationary section extends through the slide bracket.3. The window well egress apparatus of claim 1 , wherein the sliding section comprises a rung.4. The window well egress apparatus of claim 3 , wherein the counterweight element comprises a rung bracket claim 3 , wherein the rung of the ladder extends through the rung bracket and the counterweight element pivots around the rung.5. The window well egress apparatus of claim 4 , wherein the counterweight element further comprises a weight and a plate claim 4 , wherein the weight is separated from the rung bracket by the plate claim 4 , wherein the plate sits on top of the fulcrum.6. The window well egress apparatus of claim 5 , wherein in response to the downward force being applied to the sliding section of the ladder claim 5 , the weight moves upwardly.7. The window well egress apparatus of claim 5 , wherein in response to the downward force being removed claim ...

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Номер записи: 20
09-01-2020 дата публикации

LADDERS AND LADDER BRACING

Номер: US20200011133A1
Автор: Cook Benjamin, Moss N. Ryan
Принадлежит:

A ladder with bracing is provided. In one embodiment, the ladder may include a first rail assembly comprising a pair of inner rails and a pair of outer rails, the pair of inner rails being slidably disposed in a upper portion of pair of outer rails, wherein a rear surface of each of the pair of outer rails lies in a common plane. A first plurality of rungs may be coupled between the pair of inner rails, and a second plurality of rungs coupled between the pair of outer rails. A brace may extend between and be coupled to the pair of outer rails, wherein the brace includes a first ramped surface, the first ramped surface having a first portion spaced away from the common plane, a second portion immediately adjacent the common plane, and a transition portion extending between the first portion and the second portion. 1. A ladder comprising: a pair of inner rails and a pair of outer rails, the pair of inner rails being slidably disposed in a upper portion of pair of outer rails, wherein a rear surface of each of the pair of outer rails lies in a common plane,', 'a first plurality of rungs coupled between the pair of inner rails,', 'a second plurality of rungs coupled between the pair of outer rails,', 'at least one brace extending between and coupled to the pair of outer rails, the at least one brace including a first ramped surface, the first ramped surface having a first portion spaced away from the common plane, a second portion immediately adjacent the common plane, and a transition portion extending between the first portion and the second portion., 'a first rail assembly comprising2. The ladder of claim 1 , wherein the transition portion includes a linear surface.3. The ladder of claim 2 , wherein a profile of the at least one brace exhibits a geometry of an irregular pentagon.4. The ladder of claim 1 , wherein the transition portion includes a curved surface.5. The ladder of claim 4 , wherein the curved surface is convex.6. The ladder of claim 4 , wherein the ...

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Номер записи: 21
17-01-2019 дата публикации

RAMP-EQUIPPED BOX BLIND STAND

Номер: US20190014773A1
Автор: LAMB Stephen
Принадлежит:

A ramp-equipped box blind stand for ease of access includes a platform that is configured to position on a surface, such as in a field for hunting. A first ramp is coupled to a top of the platform and extends angularly from the platform to the surface. A carriage is slidably coupled to the first ramp and is selectively positionable along the first ramp. The carriage extends transversely from the first ramp so that it is substantially parallel to the surface. The carriage is configured to position a load, such as a box blind and an occupied wheelchair. A lift is operationally coupled to the carriage and the first ramp. The lift is configured to motivate the carriage along the first ramp to transfer the load between the surface and the top of the platform. A pair of first railings that is coupled the first ramp is configured to prevent falls. 1. A ramp-equipped box blind stand comprising:a platform configured for positioning on a surface, such as in a field for hunting, said platform being configured for positioning a box blind;a first ramp coupled to a top of said platform and extending angularly from said platform to the surface;a pair of first railings, each said first railing being coupled to and extending upwardly from a respective opposing side of said first ramp, said first railings extending between opposing termini of said first ramp;a carriage slidably coupled to said first ramp such that said carriage is selectively positionable along said first ramp, said carriage extending transversely from said first ramp such that said carriage is substantially parallel to the surface;a lift operationally coupled to said carriage and said first ramp; andwherein said first railings are positioned on said first ramp such that said first railings are configured for preventing falls from said first ramp to the surface, wherein said carriage is positioned on said first ramp such that said carriage is configured for positioning a load, such as the box blind and an occupied ...

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Номер записи: 22
21-01-2016 дата публикации

Maintenance Cart with Air Filtration

Номер: US20160016599A1
Автор: Adam Brian Hunninck, Blair Lawrence Harber, Leonard Gene Simmons, Lynette Raville Mathews
Принадлежит: Abatement Technologies Inc

A maintenance/construction cart that facilitates wall and ceiling access while isolating the interior of the cart from the surrounding environment. The cart is configured such that its height can be easily adjusted by an operator to provide access to ceilings of different heights while maintaining the seal between the interior of the cart and the surrounding environment while structurally supporting a ladder leaning against a surface of the cart. In some embodiments, the cart includes an air filtration unit.

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Номер записи: 23
19-01-2017 дата публикации

Foldable Platform Step Ladder

Номер: US20170016276A1
Автор: Seiler Ronald F.
Принадлежит:

The present invention comprises a foldable platform step ladder having one or more railing sides which are pivotable along a first pivot axis, a first hinge which facilitates the railing sides pivoting along the first pivot axis, a platform step which is pivotable along a second pivot axis; and a second hinge which facilitates the platform step pivoting along the second pivot axis. When the railing sides or the platform step are in a use position, one of the first hinge or the second hinge are in a locked position. When the railing sides or the platform step are in a non-use position, one of the first hinge or the second hinge are in an open position allowing pivoting motion along the first pivot axis and the second pivot axis. 1. A foldable platform step ladder , comprising:one or more railing sides which are pivotable along a first pivot axis;at least one first hinge which facilitates said one or more railing sides pivoting along the first pivot axis;at least one platform step which is pivotable along a second pivot axis; andat least one second hinge which facilitates said at least one platform step pivoting along the second pivot axis;wherein when said one or more railing sides or said at least one platform step are in an use position, one of the at least one first hinge or the at least one second hinge are in a locked position; andwherein when said one or more railing sides or said at least one platform step are in a non-use position, one of the at least one first hinge or the at least one second hinge are in an open position allowing pivoting motion along the first pivot axis and the second pivot axis.2. The foldable platform ladder of claim 1 , wherein when said one or more railing sides and said at least one platform step are in a use position claim 1 , the at least one first hinge and the at least one second hinge are in a locked position; and wherein when said one or more railing sides and said at least one platform step are in a non-use position claim 1 , ...

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Номер записи: 24
21-01-2016 дата публикации

SEGMENTED COLLAPSIBLE LADDER

Номер: US20160017657A1
Автор: WILSON Stephen
Принадлежит:

A ladder assembly includes a plurality of interconnected ladder segments. Each ladder segment comprises two opposing rails and rungs that are pivotably mounted to the rails to allow each ladder segment to be collapsed by pivoting the rungs in a folding direction relative to the rails and moving opposing rails closer to each other. Each ladder segment may be erected by pivoting the rungs in an opposite unfolding direction relative to the rails. Ladder segments further comprise top and bottom rail connectors allowing interconnection of the top of that ladder segment to the bottom of another of the ladder segments. The top and bottom rail connectors are keyed, so that first and second connected ones of said plurality of ladder segments will be oriented with the unfolding direction of their rungs opposite to each other.

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Номер записи: 25
21-01-2016 дата публикации

Step Stool and Method

Номер: US20160017658A1
Автор: Thomas W. Parker
Принадлежит: Werner Co

A folding step stool includes a front rail assembly. The step stool includes a rear rail assembly, pivotally connected to the front rail assembly, having a crossbar. The step stool includes a step pivotally attached to the front rail assembly having notches which fit over the crossbar when the stool is in an open position. The step stool includes a linkage assembly pivotally and fixedly attached to the step and pivotally and fixedly attached to the crossbar. The linkage assembly compresses to allow the notches to fit over the crossbar and the linkage assembly exerting a force to maintain the crossbar in the notches when the stool is in the open position. A method for securing a step stool includes the steps of moving the notches of a step against a crossbar of a rear rail assembly pivotally connected to a front rail assembly of the step stool. There is the step of compressing a linkage assembly pivotally and fixedly attached to the step and pivotally and fixedly attached to the crossbar to allow the notches to fit over the crossbar. There is the step of exerting a force with the linkage assembly to maintain the crossbar in the notches when the stool is in the open position.

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Номер записи: 26
17-01-2019 дата публикации

STEP LADDER WITH COMPONENT RACK SYSTEM FOR FABRICATION FACILITY

Номер: US20190017323A1
Автор: Slevin Damien, Vasquez Miguel Benjamin
Принадлежит:

A ladder assembly is provided, including the following: a mounting plate that connects to a side surface of a module in a fabrication facility; a step ladder, including, a ladder frame having an arm that connects to the mounting plate at a first joint, wherein the step ladder rotates about the first joint between a lowered position and a raised position, the lowered positioned defined by resting of the step ladder on a floor of the fabrication facility, and the raised position defined by suspension of the step ladder off of the floor and substantially over the module; a plurality of step plates connected to the ladder frame, the step plates defining step surfaces for a user when the step ladder is in the lowered position. A sleeve extends below one of the step plates of the step ladder, to house electronic equipment used in the fabrication facility. 1. A ladder assembly , comprising:a mounting plate that connects to a side surface of a module that handles, transfers, stores, and/or processes substrates in a fabrication facility; a ladder frame having an arm that connects to the mounting plate at a first joint, wherein the step ladder rotates about the first joint between a lowered position and a raised position, the lowered positioned defined by resting of the step ladder on a floor of the fabrication facility, and the raised position defined by suspension of the step ladder off of the floor and substantially over the module, wherein rotation of the step ladder from the lowered position to the raised position includes a movement of a center of gravity of the step ladder through a vertical plane that intersects an axis of rotation of the first joint;', 'a plurality of step plates connected to the ladder frame, the step plates defining step surfaces for a user when the step ladder is in the lowered position., 'a step ladder, including,'}2. The ladder assembly of claim 1 , wherein rotation of the step ladder from the lowered position to the raised position includes a ...

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Номер записи: 27
17-01-2019 дата публикации

MOVABLE LADDER

Номер: US20190017324A1
Автор: AGUILUZ FLORES Armando Israel
Принадлежит:

Disclosed is a movable ladder formed by a structural element composed of a rear part and two sides, the lower part of the vertical structural elements of the ladder terminating in lateral projections in the form of an inverted “U” that provide the ladder with reliable support on the floor. The ladder is characterised in that it is provided with two collapsible lateral platforms and four wheels that can be raised or lowered to facilitate the movement of the ladder toward the work area. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)510. A movable ladder () comprising:{'b': '12', 'claim-text': [{'b': 29', '28', '22, 'a first side portion and a second side portion, the first and second side portions each comprising a first vertical structural element (), a second vertical structural element, and a side horizontal structural element (′), where the side horizontal structural element adjoins the first vertical structural element to the second vertical structural element, and where the first vertical structural element and second vertical structural element each comprises a lateral projection (); and'}, 'a rear horizontal structural element, where the rear horizontal structural element adjoins the first side portion and second side portion;, 'a frame () comprising{'b': '20', 'a hinge () disposed on the side horizontal structural element of each of the first side portion and second side portion;'}{'b': '14', 'a collapsible platform () adjoined to each of the first side portion and second side portion via the hinge;'}{'b': '25', 'at least one caster () adjoined to the frame; and'}{'b': '26', 'at least two steps () mounted to the frame.'}616. The movable ladder of claim 5 , further comprising a support mechanism () for maintaining the collapsible platform in a horizontal position.7. The movable ladder of claim 6 , where the support mechanism comprises a rod.818. The movable ladder of claim 7 , further comprising a bracket () mounted to the vertical side element of the ...

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Номер записи: 28
28-01-2016 дата публикации

SAFETY LADDER AND WORK PLATFORM FOR HELICOPTER AND AIRCRAFT MAINTENENCE

Номер: US20160024844A1
Автор: Neubauer Dale Martin
Принадлежит:

The disclosed lightweight portable ladder provides a stable platform that can nest in close proximity to helicopters, aircraft and other machines to facilitate enhanced access for inspection and maintenance. The ladder consists of a stepped unit connected by hinged means located near the top a support unit and means to hold the units in a fixed orientation. The distance from the hinge point to the bottom of the support unit is longer than from the hinge point to the bottom of the stepped unit. The hinge point may be located some distance below the top of the stepped unit, in which case the upper portion of that unit will be cantilevered with respect to the hinge point. The location of the hinge point can be tailored for specific aircraft and applications so as to provide an optimized fit when the ladder is positioned for use. 1. A step ladder comprising:a. two pairs of side rails, each said side rail having a top end and a bottom endb. one of said pairs of side rails being co-joined by means of rungs upon which a person can stand to create a unified stepped unit having a top end and a bottom endc. the other of said pairs of side rails being braced to each other so as to create a unified support unit having a top end and a bottom endd. hinge means connecting the said top end of the said support unit to said stepped unit such that when the ladder is in its folded configuration the said bottom end of the support unit extends beyond the bottom end of the stepped unite. retention means to hold said stepped unit at a predetermined angle relative to said support unit allowing the said units to be held spread apartwhereby the step ladder can be placed into and retained in a self-supporting working position.2. The step ladder of wherein the top end of the stepped unit extends beyond the top end of the support unit and is cantilevered with respect to that unit.3. The step ladder of wherein the rails of the stepped unit and the support unit are more widely spaced at their ...

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Номер записи: 29
23-01-2020 дата публикации

HUNTING STAND

Номер: US20200022359A1
Автор: Ketz Patrick Allen, Rude Owen Gregory
Принадлежит:

A hunting stand includes a frame assembly and a platform. The frame assembly includes a plurality of legs and a plurality of struts. The platform includes a first wheel spindle and a second wheel spindle extending from laterally from an opposing side of the platform. An assemble position includes the legs and struts of the frame assembly attached together in an upright position elevating the platform, and a top end of the ladder secured to and extending downward from the platform in a vertical position. A transport position includes the legs and struts detached from one another, the pair of wheels secured to the pair of wheel spindles respectively and the top end of the ladder secured to and extending laterally from the platform in a horizontal position. 1. A hunting stand comprising:a frame assembly comprising a plurality of legs and struts;a platform having a first side and a second side opposite the first side, wherein a first wheel spindle is laterally extending from the first side and a second wheel spindle is laterally extending from the second side;a ladder; anda pair of wheels, whereinthe hunting stand is configured to be arranged in an assemble position and a transport position,the assemble position comprising the legs and struts of the frame assembly attached together in an upright position elevating the platform in a horizontal position with the first wheel spindle and the second wheel spindle disposed along a horizontal axis, and a top end of the ladder secured to the platform in a vertical position, andthe transport position comprising the legs and struts detached from one another, the pair of wheels secured to the first and second wheel spindles respectively and the top end of the ladder secured to the platform in a horizontal position.2. The hunting stand of claim 1 , wherein the plurality of legs are disposed vertically and the plurality of struts are disposed horizontally connecting the plurality of legs together in the assemble position.3. The ...

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Номер записи: 30
24-01-2019 дата публикации

HINGED STEP FOR SMALL PERSON

Номер: US20190024455A1
Автор: LAFOND Jean-Francois, MAZAHERI-TEHRANI Behrang, Reid Frederick
Принадлежит:

There is described a step comprising a single foot secured to the floor for supporting a hinge system and a board onto which a user can step. The foot has an inclination Θ with respect to the floor, wherein the inclination Θ is fixed and lies between 45° and 80°. The hinge system installed on the foot provides a hinge with respect to the foot. The board extending in a plane is fixedly secured to the hinge system and hinges between a stowed position and a working position. The board is substantially horizontal when in the working position, and inclined at the inclination Θ when in the stowed position. The board is adjacent to surfaces of the foot and of the cap onto the hinge system, and does not define any acute angle with these adjacent surfaces. The board has a recess that, upon hinging, always conforms to the cap. 113-. (canceled)14. A step comprising:a foot;a hinge system installed on the foot and providing a hinge with respect to the foot;a board onto which a user can step, the board being fixedly secured to the hinge system for providing a hingeable movement about a hinge axis between a stowed position and a working position;a cap over the foot and covering the hinge system,wherein the board is adjacent to surfaces of the foot and of the cap, wherein the board, whether in the stowed position, the working position or in-between, defines angles with the adjacent surfaces that are not acute.15. The step of claim 14 , further comprising a spring within the foot claim 14 , secured to the foot and linked to the hinge system claim 14 , urging the board toward the stowed position when no weight is applied on the board.16. The step of claim 15 , further comprising a string secured to the spring and to the rotative portion for pulling the rotative portion and the first stopper toward the first abutting surface.17. The step of claim 16 , wherein the board has a recess about its periphery and around the hinge system claim 16 , the recess having a shape; and the cap has an ...

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Номер записи: 31
24-01-2019 дата публикации

Ladder stabilization apparatus and method of use

Номер: US20190024457A1
Автор: Joseph F. Stout
Принадлежит: Individual

The present invention is a universal stabilization apparatus which is functional for use with any type of extension ladder and can be easily manually attached/detached using only one hand of the worker. The apparatus is of simple construction, lightweight, portable, completely adjustable and attachable onto substantially any type of roof edge. The apparatus consists of only two elongated resilient members in combination and each have attachments thereon for securing the extension ladder when in use.

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Номер записи: 32
29-01-2015 дата публикации

MULTIFUNCTIONAL LADDER

Номер: US20150027810A1
Автор: LIM Jong Deok, YOO Thomas
Принадлежит:

A combined stepladder and work platform assembly is provided. The assembly comprises a top frame having two side rails and footplate, a back frame pivotally attached to the back side of the top frame and having two side rails, and a front frame pivotally attached to the front side of the top frame and having two side rails. Link bars are provided so that they maintain steps horizontal together with the side rails of the front frame. Four braces secure the back frame and front frame with the top frame at a certain angle when the assembly is used as a work platform. The front frame, the top frame and the back frame form a triangular shape while the back frame is parallel to the floor when the assembly is used as a stepladder. 1. A combined stepladder and work platform assembly comprising;(a) a top frame having two side rails and footplate fixed between the side rails;(b) a back frame pivotally attached to back side of the top frame and having two side rails, each of which having an upper end and pivotally attached to the side rail of the top frame at the back end;(c) a front frame pivotally attached to the front side of the top frame and having two side rails, each of which having an upper end and pivotally attached to the side rail of the top frame at the front end;(d) two link bars;(e) a plurality of steps, each end of which is pivotally attached to the side rails of the front frame and the link bars respectively;(f) four braces, each of which having an upper end pivotally attached to the side rail of the top frame and a lower end pivotally attached to the side rail of back frame and front frame;(g) an elastic foot attached at the lower end of each of the side rails of the front frame and the back frame and another pair of elastic feet attached at the upper portion of the side rails of the back frame;2. The combined stepladder and work platform assembly of wherein the overhung end portion of the uppermost step is supported by the recessed end portion of the foot ...

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Номер записи: 33
23-01-2020 дата публикации

ADJUSTABLE LADDER AND STAIR SYSTEM

Номер: US20200024900A1
Автор: Froese Willie, Stapleton David Paul
Принадлежит:

An adjustable ladder and stair system has a folding stair assembly including a ladder-member having a first-end, a second-end, a plurality of rungs equidistantly spaced between a first-rail and a second-rail, and a securer, a stair-member having a stair-portion, a first-rail-slide-mechanism, a second-rail-slide-mechanism, a first-rail-locking-mechanism, and a second-rail-locking-mechanism. The ladder-member may be secured in a vertical position parallel to a substantially vertical item desired to be ascended via the securer. The stair-member is adjustable to accommodate a desired angle. The folding stair assembly provides an apparatus for safely accessing a substantially vertical item desired to be ascended such as a roll off garbage bins. 1. An adjustable ladder and stair system comprising: a ladder-member having a first-end, a second-end, a plurality of rungs equidistantly spaced between a first-rail and a second-rail, and a securer;', 'a stair-member having a stair-portion, a C-shaped-first-rail-slide-mechanism, a C-shaped-second-rail-slide-mechanism comprising a first cam handle and a first safety pin, a C-shaped-first-rail-locking-mechanism, and a C-shaped-second-rail-locking-mechanism comprising a second cam handle and a second safety pin;, 'a folding stair assembly including wherein said first-end comprises said securer for attaching to an item and securing said folding stair assembly in position for use;', 'wherein said C-shaped-first-rail-slide-mechanism and said C-shaped-second-rail-slide-mechanism are positioned at a top-portion on opposing sides of said stair-portion and are configured to allow said stair-portion to pivot and further move along said first-rail and said second-rail; and', 'wherein said first-rail-slide-mechanism comprises said C-shaped-first-rail-locking-mechanism and said C-shaped-second-rail-slide-mechanism comprises said second-rail-locking-mechanism which are configured to lock said C-shaped-first-rail-slide-mechanism, said C-shaped- ...

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Номер записи: 34
28-01-2021 дата публикации

LADDERS, LADDER HINGES AND RELATED METHODS

Номер: US20210025230A1
Автор: Cook Benjamin L., Jonas Gary M., Peterson Sean R.
Принадлежит: WING ENTERPRISES, INCORPORATED

Ladders, ladder components and related methods are provided including embodiments of a hinge that may be used in a combination ladder. In one embodiment, a hinge mechanism includes a first hinge assembly and a second hinge assembly. The first and second hinge assemblies are coupled together for relative rotation about a defined axis. An adjustment mechanism enables the two hinge assemblies to be selectively locked or unlocked to prohibit or permit relative rotation, respectively. In one embodiment, the adjustment mechanism includes a lock plate displaceable along a first axis and a retainer displaceable along a second axis. The retainer is configured to hold the lock plate in a disengaged state until a release structure displaces the retainer away from the lock plate. The release structure may be configured to be actuated and displace the retainer upon relative rotation of the hinge assemblies to (or through) a predetermined angular configuration. 1. A method of forming a ladder , the method comprising:providing a first rail assembly having a first rail, a second rail and a first plurality of rungs extending between and coupled to the first rail and the second rail;providing a second rail assembly having a third rail and a fourth rail;coupling a first hinge mechanism between the first rail and third rail;coupling a second hinge mechanism between the second rail and the third rail; a first hinge assembly having at least one hinge plate,', 'a second hinge assembly having at least one hinge plate, the first hinge assembly being rotatably coupled to the second hinge assembly,', 'an adjustment mechanism configured to selectively permit and prohibit relative rotation of the first hinge assembly and the second hinge assembly,, 'configuring at least one of the first and second hinge mechanisms to include a lock plate biased in a first direction along a first axis, the lock plate having a first portion configured to engage at least one recess formed on a periphery of the at ...

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Номер записи: 35
02-02-2017 дата публикации

LADDER SECURING APPARATUSES, LADDERS INCORPORATING SAME AND RELATED METHODS

Номер: US20170030142A1
Автор: Crawford Ryan, Jonas Gary, Moss N. Ryan, Penrod Darius S., Peterson Sean R., Russell Brian B.
Принадлежит: WING ENTERPRISES, INCORPORATED

A ladder is provided comprising a first pair of spaced apart rails and a plurality of rungs extending between and coupled to the first pair of spaced apart rails. A pair of hooks are located such that each hook is positioned adjacent and upper end of an associated rail. A securing apparatus is coupled adjacent the upper end of the first pair of spaced apart rails. The securing apparatus includes a pair of spaced apart engaging members and may include a cross-member coupled therebetween. Each of the engagement members is pivotal with respect to an associated rail of the first pair of spaced apart rails. In one embodiment, the securing apparatus lacks any biasing members (e.g., springs or actuators) or locking members. The engagement members and hooks cooperatively encircle and overhead, generally horizontal support member to support and secure the ladder in a desired position. 1. A method of securing a ladder , the method comprising:providing a ladder having a pair of spaced apart hooks and a pair of spaced apart engagement members;positioning the ladder such that a cup portion of each engagement member engages an overhead line;displacing the ladder relative to the overhead line to effect concurrent rotation of the engagement members; andencircling the overhead line at two spaced apart locations with the engagement members and the hooks.2. An apparatus for securing a ladder to a vertical support structure , the apparatus comprising:a pair of spaced apart brackets, each bracket being configured for coupling with a component of a ladder;a pair of arms, each arm being pivotally coupled to an associated one of the pair of brackets;a strap coupled between the pair of arms and configured such that displacement of the strap effects rotation of the arms relative to their associated bracket.3. The apparatus of claim 2 , further comprising a first ratcheting mechanism associated with a first arm of the pair of arms and a second ratcheting mechanism associated with a second arm ...

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Номер записи: 36
17-02-2022 дата публикации

SAFETY DEVICE FOR LADDER

Номер: US20220049550A1
Автор: HA Sung Suk, PARK Soon Gyu
Принадлежит: IKAMPER CO., LTD.

A safety device for a ladder for protecting a user of the ladder is provided. The safety device includes a guard member formed extending in one direction, the guard member being mountable on the ladder, and a plurality of fixing members connected to the guard member, spaced apart from each other along a longitudinal direction of the guard member, and configured to fix the guard member to the ladder, wherein the guard member is configured to protrude at least partially toward a mar side of the ladder and cover a rear surface of the ladder. 1. A safety device for a ladder for protecting a user of the ladder , comprising:a guard member formed extending in direction, the guard member being mountable on the ladder; anda plurality of fixing members connected to the guard member, spaced apart from each other along a longitudinal direction of the guard member, and configured to fix the guard member to the ladder,wherein the guard member is configured to protrude at least partially toward a rear side of the ladder and cover a rear surface of the ladder.2. The safety device of claim I , the guard member including:a connection portion to which the fixing members are connected; anda cover portion provided at least one of both ends of the connection portion and provided with a folding line extending in the other direction perpendicular to the one direction, andthe cover portion is configured to be selectively unfolded about the folding line.3. The safety device of claim 2 , wherein the connection portion and the cover portion are provided in plural claim 2 , respectively claim 2 , andthe plurality of connection portions and the plurality of cover portions are alternately arranged to each other.4. The safety device of claim 2 , wherein the connection portion and the cover portion are integrally formed.5. The safety device of claim 2 , the cover portion including:a first cover body disposed on one side of the folding line; anda second cover body disposed on the other side of the ...

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Номер записи: 37
30-01-2020 дата публикации

UNDERWATER PLATFORM INSTALLATION IN AN EXISTING SWIMMING POOL

Номер: US20200032539A1
Автор: Masterson Thomas Joseph
Принадлежит:

A retro-fit installation modifies the existing pool ladder structure of an existing in-ground or above-ground swimming pool to support an underwater “swim out” platform structure. In some versions, the ladder rails of the existing pool ladder are used to support the underwater platform, while in others the existing pool ladder rails are replaced with new tubular platform rails specifically designed to support the underwater platform structure. Other versions are adapted for installations in a round pool or at a corner of a rectangular pool. 1. An underwater platform installation in an existing swimming pool , comprising:two existing round anchor sockets in a deck or a patio surrounding the existing swimming pool, wherein the two existing anchor sockets are configured to secure two tubular existing ladder rails of an existing pool ladder, having two or more ladder treads;two tubular platform rails which fit into and are securable by the two existing anchor sockets, wherein each of the two platform rails comprises an upper socket end, which conjugately engages one of the two anchor sockets, a lower terminal end, and a vertical support section between the upper socket end and the lower terminal end; anda platform structure, supporting a flat underwater platform, wherein the platform structure is horizontally secured between the two platform rails at a submerged platform position.2. The underwater platform installation according to claim 1 , wherein the submerged platform position is located along the vertical support sections of the two platform rails.3. The underwater platform installation according to claim 2 , wherein the underwater platform is rigid claim 2 , horizontally oriented claim 2 , flat claim 2 , and substantially rectangular claim 2 , and wherein the underwater platform has an interior edge claim 2 , congruently contiguous to a vertical pool wall of the existing swimming pool claim 2 , and wherein the underwater platform has two side edges claim 2 , which ...

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Номер записи: 38
30-01-2020 дата публикации

Digitally-Enhanced Tools and System

Номер: US20200032584A1
Автор: David Bautista, Salve Bigayan Bautista
Принадлежит: Individual

A tool use system has a tool having sensors tracking use of the tool, a first CPU executing first coded instructions monitoring input from the sensors with respect to time; and first wireless communication circuitry adapted to transmit data, and a central hub comprising a second CPU executing second coded instructions, a data repository, and second wireless communication circuitry compatible with the first wireless communication circuitry. The first coded instructions comprise an algorithm adapted to identify an instance of unsafe use of the tool based on sensory input and time, and wherein an identified instance of unsafe use is transmitted by the first wireless communication circuitry to the second wireless communication circuitry, and the second coded instructions cause the instance of unsafe use to be recorded in the data repository.

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Номер записи: 39
04-02-2021 дата публикации

BRACES FOR LADDERS, LADDERS INCORPORATING SAME AND RELATED METHODS

Номер: US20210032932A1
Автор: Cook Benjamin L., Moss N. Ryan, Russell Brian B.
Принадлежит: WING ENTERPRISES, INCORPORATED

Ladder components, such as braces, as well as ladders and methods of manufacturing ladders are provided. In one embodiment, a ladder brace is provided which extends between a rail and a cross member (e.g., a rung or a cross-brace). The ladder brace may include a first connecting portion associated with the rail, a second connecting portion associated with the cross member, and a strut portion extending between the first and second connecting portions. At least one of the first connecting portion and the second connecting portion is configured to completely encircle its associated component (e.g., either the rail or the cross member, respectively). 1. A method of assembling a ladder , the method comprising:providing a first rail;providing a cross-member;providing a first brace having a first connecting portion, a second connecting portion, and a strut portion between the first connecting portion and the second connecting portion, the first connecting portion having a tubular configuration;sliding the first rail through an opening of the tubular configuration such that the first connecting portion surrounds a portion of the first rail; andcoupling the second connecting portion with the first cross-member.2. The method according to claim 1 , wherein coupling the second connecting portion with the first cross-member includes sliding the cross-member through an opening of a tubular configuration of the second connecting portion such that the second connecting portion surrounds a portion of the cross-member.3. The method according to claim 2 , further comprising coupling the cross-member with the first rail after sliding the cross-member through the opening of the tubular configuration of the second connecting portion.4. The method according to claim 1 , further comprising coupling the cross-member to the first rail.5. The method according to claim 4 , wherein coupling the cross-member to the first rail occurs prior to sliding the first rail through an opening of the ...

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Номер записи: 40
08-02-2018 дата публикации

SHIPPING CONTAINER

Номер: US20180037403A1
Автор: KONDOH Kenichi
Принадлежит:

A shipping container includes: a bottom plate onto which cargo is to be placed, columns vertically extending from the bottom plate, and top plates detachably supported by the columns. Since the top plates are detachable from the columns, it is possible to smoothly load long objects into the shipping container from above the container, by removing the top plates in advance. When the loading is completed, the top plates are attached back to the columns again to reinforce the columns, thereby ensuring the strength of the shipping container as a whole. A plurality of these shipping containers can therefore be stacked one on another in a container ship, in the same manner as ordinary shipping containers. 1. A shipping container comprising:a bottom plate onto which cargo is to be placed;columns vertically extending from the bottom plate; anda top plate detachably supported by the columns.2. The shipping container according to claim 1 , wherein the top plate is formed with an insertion recess configured such that a jig which is used to attach and detach the top plate to and from the columns is inserted into the insertion recess.3. The shipping container according to claim 1 , wherein one of the columns is in the shape of a ladder.4. The shipping container according to claim 2 , wherein one of the columns is in the shape of a ladder. The present invention relates to a shipping container for transporting cargo. More particularly, the present invention relates to a shipping container suitable for loading long objects such as lumber.When transporting cargo in a shipping container, loading and unloading of the cargo into and out of the shipping container is carried out, as shown in the below-identified Patent Document 1 for example, through the opening formed by opening doors at the rear end of the shipping container (see FIG. 1 of Patent Document 1). In this case, a transport vehicle such as a forklift is used for the loading and unloading of the cargo. However, when ...

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Номер записи: 41
18-02-2021 дата публикации

CONFIGURABLE STEP ASSISTANT

Номер: US20210047885A1
Автор: Hasan Sara
Принадлежит:

A configurable step assistant is provided that includes a first portion configured to be attached to a structure, a second portion pivotally connected to the first portion, the second portion being moveable between a first position and a second position with respect to the first portion, a third portion pivotally connected to the second portion, the third portion being moveable between a first position and a second position with respect to the second portion, wherein, when the second portion is in the second position and the third portion is in the second position, the second portion defines a step for accommodating a user. An associated method is also provided. 1. A configurable step assistant comprising:a first portion configured to be attached to a structure;a second portion pivotally connected to the first portion, the second portion being moveable between a first position and a second position with respect to the first portion; anda third portion pivotally connected to the second portion, the third portion being moveable between a first position and a second position with respect to the second portion;wherein, when the second portion is in the second position and the third portion is in the second position, the second portion defines a step for accommodating a user.2. The configurable step assistant of claim 1 , wherein the first portion includes at least one vertically extending arm extending upwardly from the second portion and having an attachment head at an end of the at least one vertically extending arm distal from the second portion.3. The configurable step assistant of claim 1 , wherein the first portion includes a connection element that includes a first portion that extends horizontally and a second portion that extends vertically.4. The configurable step assistant of claim 1 , wherein claim 1 , when the second portion is in the first position claim 1 , the second portion is parallel to the first portion to reduce a footprint on a floor that supports ...

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Номер записи: 42
18-02-2016 дата публикации

LADDER FOR MAST ASSEMBLY

Номер: US20160047165A1
Автор: King Donald A., Taylor Ryan M.
Принадлежит: Progress Rail Services Corporation

A ladder for a mast assembly is provided. The ladder includes a frame assembly having a pair of side rails and a plurality of rungs. The ladder also includes a sub-assembly affixed to an interior facing side of the frame assembly. The sub-assembly includes a platform provided at a bottom section of the sub-assembly. The sub-assembly also includes a plurality of support rails provided at a top section of the sub-assembly. A first end of each of the support rails is pivotably coupled to the frame assembly. A second end of each of the support rails is configured to contact with the mast assembly when the ladder is in a deployed position with respect to the mast assembly. The frame assembly and the at least one sub-assembly is collapsible against the mast assembly. 1. A ladder for a mast assembly , the ladder comprising: a pair of side rails; and', 'a plurality of rungs extending between the pair of side rails; and, 'a frame assembly configured to be coupled to the mast assembly, the frame assembly including a platform provided at a bottom section of the sub-assembly, wherein a first end of the platform is pivotably coupled to the frame assembly, and a second end of the platform is pivotably coupled to the mast assembly; and', 'a plurality of support rails provided at a top section of the sub-assembly, each of the plurality of support rails being spaced apart from each other, wherein a first end of each of the support rails is pivotably coupled to the frame assembly and a second end of each of the support rails is configured to contact with the mast assembly when the ladder is in a deployed position with respect to the mast assembly,', 'wherein the frame assembly and the at least one sub-assembly is collapsible against the mast assembly., 'at least one sub-assembly affixed to an interior facing side of the frame assembly, the at least one sub-assembly comprising2. The ladder of further comprising a vertical support member claim 1 , wherein the vertical support member is ...

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Номер записи: 43
18-02-2016 дата публикации

Mobile lifeline ladder system

Номер: US20160047167A1
Автор: Daniel Shuch, Luis Eduardo Vicente Catta-Preta, Nelson Pudles
Принадлежит: Altiseg Equipamentos de Seguridad de Trabajo Ltda

A mobile lifeline ladder system is provided. The mobile lifeline ladder system includes a lifeline, a lifeline supply assembly, a rescue assembly and an anchor assembly. The lifeline has a first portion, a second portion and an intermediate portion that is positioned between the first portion and the second portion. The lifeline supply assembly contains the first portion of the lifeline. The lifeline supply assembly is configured and arranged to be coupled to a ladder. The rescue assembly contains the second portion of the lifeline. The rescue assembly is configured and arranged to be coupled to a first support structure. The rescue assembly includes a lifeline payout regulator to selectively payout the second portion of the lifeline. The anchor assembly is configured and arranged to be coupled to a second support structure above the ladder. The intermediate portion of the lifeline is slidably held by the anchor assembly.

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Номер записи: 44
16-02-2017 дата публикации

Stepladder with Latch Stud and Method

Номер: US20170044827A1
Автор: Moore Devin Lee, Otis Christian M., Parker Thomas W., Rios Erick E., Wong-Shui Brian
Принадлежит: Werner Co.

A stepladder includes a front section having a first front leg and a second front leg. The stepladder includes a step attached to the first front leg and the second front leg. The stepladder includes a latch engaged with the step. The stepladder includes a rear section having a first rear leg and a second rear leg and a cross bar attached to the first rear leg and the second rear leg. The rear section is pivotably attached to the front section. The rear section has a first stud which extends from the first rear leg toward the second rear leg and separate and apart and not in contact with the second rear leg and not in contact with the cross bar. The latch is engaged with and latched to the first stud to define an engaged position where the first front leg and the first rear are in an open position and form an inverted v shape and are prevented from folding together, and the latch when pulled up from the engaged position, disengages from the first stud and allows the front section and rear section to fold together into a closed position where the first rear leg and the first front leg are in parallel. A method of positioning a step ladder. 1. A stepladder comprising:a front section having a first front leg and a second front leg;a step attached to the first from leg and the second front leg;a latch engaged with the step; anda rear section having a first rear leg and a second rear leg and a cross bar attached to the first rear kg and the second rear leg, the rear section pivotably attached to the front section, the rear section having a first stud which extends from the first rear leg toward the second rear leg and separate and apart and not in contact with the second rear leg and not in contact with the cross bar, the latch engaged with and latched to the first stud to define an engaged position where the first front leg and the first rear leg are in an open position and form an inverted v shape and are prevented from folding together, and the latch when pulled up ...

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Номер записи: 45
15-02-2018 дата публикации

BOAT OR RECREATONAL VEHICLE LADDER APPARATUS

Номер: US20180044985A1
Автор: Ashton Michael Lee, Champ Larry Brian, ORSCHELN ROBERT J., Schmidt Michael Herbert, Soucie Wayne Lawrence, Tayan Jeffrey Earl
Принадлежит: Bobo Ladders LLC

A boat or recreational vehicle ladder apparatus is provided. One aspect of the present ladder apparatus includes an elongated extension handle including a slot adjacent a lower end thereof. Another aspect of a boat or recreational vehicle ladder apparatus provides a snap-on step tread which can be mounted to a dual-tubular ladder step structure. Another aspect of a boat or recreational vehicle ladder apparatus employs a laterally expandable ladder step which can be retrofit onto an existing ladder. A further aspect employs clasps or hooks to attach and retain a ladder step to generally vertical ladder rails in a tool-free and fastener-free manner. 1. A boat or recreational vehicle ladder apparatus comprising an upwardly and longitudinally elongated extension handle comprising:an elongated tube including a free upper end and a lower end; andat least one longitudinally elongated coupling structure comprising: (a) a flat-sided shaft, or (b) an openly accessible slot, at the lower end of the tube;the coupling structure being adapted to removably mate with an upwardly elongated opening of a receptacle or rail of a boat or recreational vehicle-mounted ladder.2. The ladder apparatus of claim 1 , wherein the tube further comprises a floatation structure.3. The ladder apparatus of claim 2 , wherein the floatation structure includes a hollow claim 2 , air-filled cavity located within the tube and a plug sealing an end of the cavity opposite the upper end which is capped.4. The ladder apparatus of claim 2 , wherein the floatation structure includes a foam collar surrounding a section of the tube between the slot and the upper end.5. The ladder apparatus of claim 1 , wherein:the tube includes an outward bend between the lower end and the upper end, with an offset upper section of the tube being elongated in an upward orientation when the ladder apparatus is in a functional position; andthe elongated coupling structure is part of a socket including a solid and cylindrically ...

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Номер записи: 46
15-02-2018 дата публикации

ADJUSTABLE LADDERS, LADDER COMPONENTS AND RELATED METHODS

Номер: US20180044989A1
Автор: Jonas Gary, JR. Brian, Moss N. Ryan, Peterson Sean R., Russell
Принадлежит:

Ladders, ladder components, adjustment mechanisms and related methods are provided herein. In one embodiment, a ladder may include an adjustment mechanism for adjusting, for example, a leveler, a stabilizer, or any two relatively displaceable components of the ladder. The adjustment mechanism may include an actuating mechanism having a first structure and a second structure slidably disposed adjacent the first structure, the second structure having a plurality of engagement surfaces. A body is coupled with the first structure. At least two engagement pins are slidably displaceable relative to the body, wherein the plurality of engagement surfaces and the at least two engagement pins are arranged such that only a single engagement pin of the at least two engagement pins is in abutting engagement with an engagement surface of the plurality of engagement surfaces at one time. At least one biasing member is configured to bias the at least two engagement pins towards engagement with the engagement surfaces. 1. A ladder comprising:a first pair of rails;a first plurality of rungs coupled between the first pair rails, a first member coupled with a portion of its associated outer rail, the first member having a first plurality of openings arranged in a first column and a second plurality of openings arranged in a second column, wherein the first plurality of engagement of surfaces are longitudinally staggered relative to the second plurality of openings along a length of the leg member; and', 'an actuating mechanism including a body and a pair of laterally spaced, spring biased engagement pins at least partially disposed within the body, the pair of engagement pins including a first engagement pin configured for individual engagement with each of the first plurality of openings and a second engagement pin configured for individual engagement with each of the second plurality of openings, wherein the first engagement pin and the second engagement pin and the first plurality ...

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Номер записи: 47
08-05-2014 дата публикации

RACK AND ROLLER PINION LIFT SYSTEM

Номер: US20140124293A1
Автор: EVERSOLE BRADLEY K., EVERSOLE NATHAN R., LOYET JOHN R.
Принадлежит: MODERN CONCEPTS OUTDOORS, LLC

A lift system comprising an elongated rack and a roller pinion drive system. A preferred version has two parallel rack with plurality of rungs extending horizontally between the racks to form a ladder. A plurality of spaced apart mounting brackets are configured for affixing the ladder vertically to a stationary member, the stationary member not forming part of the invention. In this version, a drive unit retained within a carriage is mounted in proximity to the racks. The drive unit interacts with the racks to move the carriage upwardly and downwardly along the racks. A speed limiter is also disclosed that can be retained within the carriage below the drive unit and mounted in proximity to one of the racks. The speed limiter interacts with the rack to produce a breaking action if the drive unit fails, preventing the carriage to drop down quickly. Single rack and inclined rack versions are disclosed as alternatives. 1. A lift system comprising;two elongated racks;a plurality of rungs extending horizontally between said racks to form a ladder with said racks parallel to each other;a plurality of spaced apart mounting brackets to affix said ladder vertically to a stationary member;a carriage;a drive unit retained within said carriage and mounted in proximity to said racks, whereby said racks interacts with said racks to move said carriage upwardly and downwardly along said racks; anda speed limiter retained within said carriage below said drive unit and mounted in proximity to one of said racks, whereby said speed limiter interacts with said rack to produce a breaking action if said drive unit fails, preventing said carriage to drop down quickly.2. The lift system as recited in claim 1 , wherein each of said racks comprises a plurality of rounded teeth with each tooth having a horizontal upper surface and a rounded recess between adjacent teeth.3. The lift system as recited in claim 2 , further comprising two guide rails with each of said guide rails extending ...

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Номер записи: 48
03-03-2022 дата публикации

MAINTENANCE CART WITH AIR FILTRATION

Номер: US20220063477A1
Автор: Harber Blair Lawrence, Hunninck Adam Brian, Mathews Lynette Raville, Simmons Leonard Gene
Принадлежит: Abatement Technologies, Inc.

A maintenance/construction cart that facilitates wall and ceiling access while isolating the interior of the cart from the surrounding environment. The cart is configured such that its height can be easily adjusted by an operator to provide access to ceilings of different heights while maintaining the seal between the interior of the cart and the surrounding environment while structurally supporting a ladder leaning against a surface of the cart. In some embodiments, the cart includes an air filtration unit. 1. A maintenance cart comprising:a lower structure with a floor, an upper portion, and a plurality of sides that extend between the upper portion and the floor;an upper structure disposed above the upper portion of the lower structure, the upper structure comprising a plurality of structural members, each structural member of the plurality of structural members connecting the upper structure to the lower structure, wherein at least two of the structural members move the upper structure relative to the lower structure between a stowed position and a raised position; anda ladder support bracket attached to an interior of the maintenance cart, wherein the ladder support bracket is moveable relative to the lower structure, and wherein the ladder support bracket structurally supports a ladder, (i) when the upper structure is in the stowed position; and', '(ii) when the upper structure is in the raised position., 'wherein the maintenance cart comprises a single interior workspace defined by both the lower structure and the upper structure2. The maintenance cart of claim 1 , wherein the at least two structural members comprise telescoping members to move the upper structure relative to the lower structure.3. The maintenance cart of claim 1 , wherein at least a portion of the ladder support bracket is disposed adjacent to the upper structure when the upper structure is in the raised position.4. The maintenance cart of claim 1 , wherein the ladder support bracket is ...

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Номер записи: 49
03-03-2022 дата публикации

SAFETY APPARATUS

Номер: US20220065042A1
Автор: Shiver Robert Warren
Принадлежит:

A safety apparatus used in connection with ladder stands is disclosed. The safety apparatus can include a structure attachment component configured to securely attach to a structure, a ladder stand attachment component configured to couple to a ladder stand of a ladder stand, and a bracing member that couples the structure attachment component to the ladder stand attachment component so as to resist lateral movement of the ladder stand with respect to the structure when the structure attachment component is secured to the structure. 1. An apparatus comprising:a structure attachment component configured to securely attach to a structure;a ladder stand attachment component configured to couple to a ladder stand; anda bracing member that couples the structure attachment component to the ladder stand attachment component,wherein the bracing member secures the ladder stand to the structure when the structure attachment component is secured thereto and resists lateral movement of the ladder stand with respect to the structure.2. The apparatus of wherein the structure attachment component includes a plurality of teeth configured to at least partially embed into an outer surface of the structure when the structure attachment component is secured to the structure.3. The apparatus of wherein the structure attachment component includes a concave head portion configured to attach to the structure.4. The apparatus of wherein the bracing member includes a telescoping component configured to alter a length of the bracing member to accommodate multiple distances between the structure and the ladder stand.5. The apparatus of further comprising a fastening element configured to secure the telescoping component to the bracing member in any of a plurality of positions that correspond to the multiple distances.6. The apparatus of wherein the ladder stand attachment component includes a telescoping component configured to alter a width of the ladder stand attachment component to ...

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Номер записи: 50
03-03-2022 дата публикации

Smart Ladder

Номер: US20220065043A1
Автор: Brewer Steven W., Dingman David, Johns Clifford L.
Принадлежит: USS Veteran Services Company LLC

A ladder including sensors, a controller, and output signals to alert the user to operating conditions and to aid the user in the safe operation of the ladder.

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Номер записи: 51
14-02-2019 дата публикации

Underwater Platform Installation in an Existing Swimming Pool

Номер: US20190048605A1
Автор: Masterson Thomas Joseph
Принадлежит:

A retro-fit installation modifies the existing pool ladder structure of an existing in-ground or above-ground swimming pool to support an underwater “swim out” platform structure. In some versions, the ladder rails of the existing pool ladder are used to support the underwater platform, while in others the existing pool ladder rails are replaced with new tubular platform rails specifically designed to support the underwater platform structure. Other versions are adapted for installations in a round pool or at a corner of a rectangular pool. 1. An underwater platform installation in an existing swimming pool , comprising:two existing round anchor sockets in a deck or a patio surrounding the existing swimming pool, wherein the two existing anchor sockets are configured to secure two tubular existing ladder rails of an existing pool ladder, having two or more ladder treads;two tubular platform rails which fit into and are securable by the two existing anchor sockets, wherein each of the two platform rails comprises an upper socket end, which conjugately engages one of the two anchor sockets, a lower terminal end, and a vertical support section between the upper socket end and the lower terminal end; anda platform structure, supporting a flat underwater platform, wherein the platform structure is horizontally secured between the two platform rails at a submerged platform position.2. The underwater platform installation according to claim 1 , wherein the submerged platform position is located along the vertical support sections of the two platform rails.3. The underwater platform installation according to claim 2 , wherein the underwater platform is rigid claim 2 , horizontally oriented claim 2 , flat claim 2 , and substantially rectangular claim 2 , and wherein the underwater platform has an interior edge claim 2 , congruently contiguous to a vertical pool wall of the existing swimming pool claim 2 , and wherein the underwater platform has two side edges claim 2 , which ...

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Номер записи: 52
14-02-2019 дата публикации

Device for stabilising a ladder, and a ladder

Номер: US20190048663A1
Автор: Daniel Seidel, David Kay
Принадлежит: Lacket Co Pty Ltd

A device for stabilising a ladder against a surface, the ladder having a pair of stiles and a plurality of rungs connected therebetween, the device comprising: an engagement mechanism for releasably engaging two adjacent rungs, the engagement mechanism including two opposed receiving portions for at least partially receiving a rung, at least one of the receiving portions being selectively movable relative to the other thereby allowing the engagement mechanism to urge against the adjacent rungs; and at least one arm pivotably connected to the engagement mechanism to allow pivoting thereof to a fixed angle relative to the engagement mechanism, the at least one arm having an abutting portion for abutting under the surface, thereby allowing the ladder to be wedged between the surface and ground level to stabilise the ladder.

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Номер записи: 53
25-02-2016 дата публикации

PLATFORM UNIT FOR USE WITH SCAFFOLDING STRUCTURE

Номер: US20160053538A1
Автор: Wallther Harry
Принадлежит:

A platform unit used with a scaffolding structure includes a worker's platform and a ladder for climbing onto the worker's platform. The platform unit includes a first tipping prevention member adapted to interact with a substantially horizontal longitudinally extending first support member, and a second tipping prevention member adapted to interact from below with a substantially horizontal longitudinally extending second support member. The second support member is vertically spaced apart from the first support member. At least a part of at least one of the first and second tipping prevention members is vertically adjustable for enabling attachment and detachment of the platform unit to the scaffolding structure. At least three rollers support the platform unit, with each of the rollers adapted to rest against either the first support member or the second support member, such that the platform unit is rollingly movable in the longitudinal direction. 1. A platform unit for use with a scaffolding structure , the platform unit comprising:a worker's platform, and a first tipping prevention member which is adapted to interact with a substantially horizontal longitudinally extending first support member of the scaffolding structure,', 'a second tipping prevention member which is adapted to interact from below with a substantially horizontal longitudinally extending second support member, which second support member is vertically spaced apart from the first support member, wherein at least a part of at least one of the first and second tipping prevention members is vertically adjustable for enabling attachment and detachment of the platform unit to said scaffolding structure, and', 'at least three rollers for supporting the platform unit, wherein each of the rollers is adapted to rest against either said first support member or said second support member, such that the platform unit is rollingly movable in the longitudinal direction., "a ladder for climbing onto the ...

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Номер записи: 54
05-03-2015 дата публикации

LADDER LIFT

Номер: US20150060200A1
Автор: SHANKS Robert Horton
Принадлежит:

A ladder lift is provided. The ladder lift may include a foldable platform, a frame, a motorized gear mechanism, a gear channel and a toggle switch. The gear channel may extend upwardly from a supporting surface along the length of the frame. The gear channel may house a belt track extending along the length of the gear channel. The foldable platform may be rigidly connected to the motorized gear mechanism. The motorized gear mechanism may selectively engage the belt track for causing the foldable platform to move in a specified direction along the length of the gear channel. The toggle switch may be used to engage and disengage the motorized gear mechanism. The frame may support the gear channel, the foldable platform, the motorized gear mechanism and a user. The user may be accommodated on the foldable platform. Then the user may activate the toggle switch so that the foldable platform moves in a specified direction along the length of the gear channel for a predetermined distance. 1. A ladder lift comprising:a frame of rigid material having sufficient strength to accommodate use by a human being;a gear channel housing a belt track, wherein the gear channel is supported by the frame; a vertical plate having a first end and a second end; and', 'a horizontal plate, wherein the vertical plate and the horizontal form a general L-shape; and, 'a foldable platform comprisinga motorized gear mechanism connected to the vertical plate,wherein the motorized gear mechanism mechanically engages the belt track for causing the foldable platform to move along the length of the gear channel.2. The ladder lift of claim 1 , wherein the vertical plate and the horizontal plate are pivotably connected.3. The ladder lift of claim 1 , further including a back support pivotably connected to the frame along a pivot plane.4. The ladder lift of claim 1 , further including a pair of handles extending upwardly from the first end and the second end.5. The ladder lift of claim 1 , further ...

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Номер записи: 55
05-03-2015 дата публикации

Self Leveling Step Ladder with a Universal Hinge Joint

Номер: US20150060201A1
Автор: HUME David J.
Принадлежит:

A self leveling stepladder with a universal hinge joint providing many new advantages that traditional a-frame step ladders are not capable to deliver. 1a first ladder frame,a second ladder frame, anda universal hinge joint coupled to said first ladder frame and said second ladder frame, said universal hinge joint providing relative motion between the two frames.. A self-leveling ladder apparatus comprising: The present invention relates to step ladders and more particularly pertains to an improvement to an A-frame ladder allowing it to be placed on uneven surfaces.Stepladders are free-standing ladders that can be erected without support from a wall, and can be folded together under transport. A stepladder consists of a step frame, which is pivotally attached to a smaller support frame. The step frame includes a number of rungs, or steps. Steps are climbing supports with “walking and/or stepping surfaces” typically ranging anywhere from 8 cm deep to 2-5 cm. The upper step is often a step-plate or platform, enabling a user to stand and move safely and comfortable. The step and support frames are connected by some locking mechanism that prevents the stepladder from collapsing.The present invention overcomes a limitation of the prior designs, specifically by providing an easy to use mechanism wherein the stepladder is self-leveling. Whilst similar to conventional stepladders in some respects, the instant invention is able to accommodate uneven ground by virtue of a unique hinge apparatus.A conventional fold out type stepladder only works well on a flat surface and is very unstable on anything else. In such instances, all of the legs of the ladder fail to touch the surface. In such instances, the conventional stepladder is not stable and not easy to stand upon, when set on uneven ground. For example, a fruit picker's ladder solves part of the problem by only having three legs; two in a step frame and a single leg at the back. They work well when pushed between the ...

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Номер записи: 56
05-03-2015 дата публикации

Portal Ladder

Номер: US20150060204A1
Автор: Glass Brad, Walter Brian
Принадлежит:

A foldable ladder has multiple ladder segments that fold and unfold relative to each other. Each ladder segment includes one rung element and multiple side rail sections that unfold for deployment to form box-shaped side rails of the ladder. Adjacent ladder segments are connected to each other by hinge joints. The ladder includes locking features at the hinge joints for preventing relative pivoting movement of adjacent ladder segments by more than about 180 degrees. 1. A foldable ladder having multiple ladder segments that fold and unfold relative to each other , each ladder segment including one rung element and multiple side rail sections that unfold for deployment to form box-shaped side rails of the ladder , adjacent ladder segments being connected to each other by hinge joints , the ladder including locking features at the hinge joints for preventing relative pivoting movement of adjacent ladder segments by more than about 180 degrees.2. A ladder as set forth in wherein the locking features are located on the rung elements.3. A ladder as set forth in wherein each hinge joint includes one knuckle on one rung element that is secured by a hinge pint to two knuckles on the adjacent rung element claim 2 , and the locking feature comprises a tab on the one knuckle that is engageable with a stop surface between the two knuckles on the adjacent ladder segment.4. A ladder as set forth in wherein the locking features are located on the multiple side rail sections.5. A ladder as set forth in wherein the locking features are located on both the rung elements and the multiple side rah sections.6. A ladder as set forth in wherein the locking features include:tabs on each rung element that engage with stops on the adjacent rung element;a fingers on each middle side rail section that engages with fingers on the adjacent middle side rail section; andtabs on each outer side rail section that engage with stops on the adjacent outer wide rail section.7. A ladder as set forth in ...

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Номер записи: 57
21-02-2019 дата публикации

FIREPROOF ASCENDING/DESCENDING MOBILE APPARATUS

Номер: US20190054326A1
Автор: LIN CHEN-HSIN
Принадлежит:

A fireproof ascending/descending mobile apparatus includes a fireproof-material enclosure carrier device, a fireproof-material support device, a drive device, an uninterruptible power system, and a position controller. The drive device drives the fireproof-material enclosure carrier device to move on the fireproof-material support device and is arranged in the fireproof-material enclosure carrier device. The uninterruptible power system is electrically connected with the drive device and is arranged in the fireproof-material enclosure carrier device. The position controller is connected with the drive device to control a position of the fireproof-material enclosure carrier device and is arranged in the fireproof-material enclosure carrier device. 1. A fireproof ascending/descending mobile apparatus , comprising:at least one fireproof-material enclosure carrier device;at least one fireproof-material support device;at least one drive device, which drives the at least one fireproof-material enclosure carrier device to cause the at least one fireproof-material enclosure carrier device to move on the at yeast one fireproof-material support device and is arranged in the at least one fireproof-material enclosure carrier device;at least one uninterruptible power system, which is electrically connected with the at least one drive device and is arranged in the at least one fireproof-material enclosure carrier device; andat least one position controller, which is connected with the at least one drive device to control a position of the at least one fireproof-material enclosure carrier device and is arranged in the at least one fireproof-material enclosure carrier device.2. The fireproof ascending/descending mobile apparatus according to claim 1 , wherein the fireproof-material support device comprises a fireproof-material support rail and/or a fireproof-material suspension cable.3. The fireproof ascending/descending mobile apparatus according to claim 2 , wherein the fireproof ...

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Номер записи: 58
10-03-2022 дата публикации

UTILITY POLE STEP

Номер: US20220074267A1
Автор: Albertyn Gregory Ian
Принадлежит:

A pole step can include an L-bolt with a first portion extending along a first axis and a second portion extending along a second axis, the second axis substantially perpendicular from the first axis, the first portion comprising a raised key. The pole step can further include a step body comprising a first end wall, a second end wall, a step wall extending between the first end wall and the second end wall, and a passage. The passage can be configured to receive the L-bolt. The step body and L-bolt can be adjustable relative to one another to vary a distance between the first end wall of the step body and the second portion of the L-bolt. 1. A pole step , comprising:an L-bolt with a first portion extending along a first axis and a second portion extending along a second axis, the second axis substantially perpendicular from the first axis, the first portion comprising a raised key; anda step body comprising a first end wall, a second end wall, a step wall extending between the first end wall and the second end wall, and a passage,wherein the passage is configured to receive the L-bolt,wherein the step body and L-bolt are adjustable relative to one another to vary a distance between the first end wall of the step body and the second portion of the L-bolt.2. The pole step of claim 1 , wherein the first portion comprises a thread.3. The pole step of claim 1 , further comprising a first nut and a second nut claim 1 , the first nut and the second nut configured to lock the step body relative to the L-bolt in a first direction.4. The pole step of claim 1 , wherein the step wall comprises eight sides.5. The pole step of claim 1 , wherein the step wall comprises an upper side.6. The pole step of claim 5 , wherein the upper side comprises a plurality of ribs.7. The pole step of claim 6 , wherein the plurality of ribs are pointed.8. The pole step of claim 5 , wherein the first end wall and the second end wall each extend above the upper surface of the step wall.9. The pole ...

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Номер записи: 59
03-03-2016 дата публикации

EASY STEP ASSISTIVE DEVICE

Номер: US20160060957A1
Автор: ONOBRAKPEYA FUNMI
Принадлежит:

An exemplary embodiment is an assistive device for enabling individuals with limited mobility to step up to a generally horizontal patient support apparatus having: a pair of foldable frames each having a generally U-shaped vertical side frame. Each of the frames has a plurality of horizontal support members and is coupled to one or more horizontal support bars that are located at a rear of the device. A plurality of foldable steps is coupled to the frames. A method of a patient/user using the device described above includes the acts of: unfolding a folded device (if folded); placing the device with a rear portion facing and against an examination table or bed. Having the patient/user grip a pair of grips and placing a first foot on a lower step. The patient then places a second foot on an upper step with the first foot remaining on the lower step while maintaining his/her hands on the grips. The patient then places the second foot on the second step, thus having both feet on the upper step and in a standing position while gripping the grips. The patient then turns around on the upper step to face away from the examination table or bed while still gripping the grips and moving to a sitting position on the examination table. 1. An assistive device for individuals with limited mobility comprising:two U-shaped inwardly foldable side frames;each respective U-shaped inwardly foldable side frame has a plurality of horizontal frame support members within each respective side frame;at least one non-folding horizontal cross support member coupled to and between a rear portion of each inwardly foldable U-shaped frame; anda plurality of steps coupled to said frames by a plurality of upwardly folding mechanisms,wherein said assistive device is in an unfolded state when adjacent to a generally horizontal patient support apparatus andwherein said assistive device and said adjacent patient support apparatus are floor or ground supported.2. The assistive device of further ...

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Номер записи: 60
21-02-2019 дата публикации

PORTABLE TREESTAND AND CLIMBING STICK SYSTEM

Номер: US20190055782A1
Автор: Infalt Daniel M., Trafficante Mario
Принадлежит:

A climbing system includes a treestand and a plurality of climbing sticks. The treestand includes a monolithic platform formed from strengthened material. Each of the climbing sticks includes a frame having a plurality of weight-reduction apertures formed therethrough. Methods of manufacturing a treestand and climbing sticks are also disclosed. The method of manufacturing a treestand includes providing a solid, strengthened piece of material and removing portions of the material to form openings between structural supports. The method of manufacturing a climbing stick includes providing a frame and forming a plurality of weight-reduction apertures therethrough. 1. A climbing stick comprising:a frame tube having a first end and a second end and extending along an axis;a first step mounted to said first end of said frame tube;a second step mounted to said second end of said frame tube;a first tree engaging structure fixed to said first end of said frame tube; 'wherein', 'a second tree engaging structure fixed to said second end of said frame tube; and'}said frame tube includes a plurality of weight reduction apertures formed therethrough.2. The climbing stick of claim 1 , whereinsaid frame tube includes a front wall, a first side wall, a rear wall, and a second side wall;said first side wall is disposed between said front wall and said rear wall;said second side wall is disposed between said front wall and said rear wall;said plurality of weight reduction apertures include a first plurality of apertures formed in said front wall of said frame tube;said plurality of weight reduction apertures includes a second plurality of apertures formed in said first side wall of said frame tube; andapertures of said first plurality of apertures formed in said front wall of said frame tube are vertically offset with respect to adjacent apertures of said second plurality of apertures formed in said first side wall of said frame tube.3. The climbing stick of claim 2 , wherein:said ...

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Номер записи: 61
12-03-2015 дата публикации

Roof Climbing Tool

Номер: US20150068839A1
Автор: Graves Gary, Webster Daniel
Принадлежит:

A tool for engaging a roof includes a peak engagement member for engaging a first surface of the roof, and an operator climbing member including an elongated central body and a plurality of spaced apart step handles mounted on the central body. The operator climbing member is configured for engaging the second surface of the roof and is operatively connected to the peak engagement member. 1. A tool for engaging a roof , the roof including a first surface and a second surface intersecting at a peak , the tool comprising:a peak engagement member for engaging the first surface of the roof; andan operator climbing member including an elongated central body and a plurality of spaced apart step handles mounted on the central body, the operator climbing member being configured for engaging the second surface of the roof and being operatively connected to the peak engagement member.2. The tool of claim 1 , wherein the operator climbing member elongated central body is a shaft claim 1 , each step handle has a bore claim 1 , and the shaft extends through the bore of each step handle.3. The tool of claim 1 , wherein each step handle has a generally U-shaped handle.4. The tool of claim 3 , wherein each U-shaped handle has first and second legs and a connecting member connecting the first and second legs claim 3 , one of the first and second legs having a foot engaging surface to be engaged by an operator's foot.5. The tool of claim 4 , wherein the foot engaging surface is generally flat.6. The tool of claim 4 , wherein the handle of each step handle is generally parallel the elongated body.7. The tool of claim 1 , wherein each step handle has a roof engaging surface and a spacing section to space the shaft away from the roof engaging surface.8. The tool of claim 1 , wherein the peak engagement member includes tool sliding member to facilitate sliding of the tool along the first surface of the roof.9. The tool of claim 8 , wherein the tool sliding member includes a rotatable ...

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Номер записи: 62
10-03-2016 дата публикации

TREE CLIMBING STICK

Номер: US20160069133A1
Автор: "DAcquisto Andrae T.", Priest John Brian
Принадлежит:

A climbing stick connector system includes first and second climbing sticks releasably secured to one another with first and second totes extending parallel to one another. In one implementation, the first climbing stick as a stopper having a projection received within an aperture in the post and a shelf, wherein a step is pivotally secured to the post above the shelf by a fastener extending through the stopper. In one implementation, the first climbing stick as a V-shaped claw having spaced ears receiving the post therebetween and a step having opposite upwardly facing concave edges. 1. A climbing stick system comprising:a first climbing stick comprising a first post;a second climbing stick having a second post, the second post extending parallel to the first post;a first connection member rotatably supported by the first post, wherein the first connection member is rotatable between a connecting state connecting the first climbing stick to the second climbing stick and a disconnected state that facilitates separation the first climbing stick from the second climbing stick.2. The climbing stick system of claim 1 , wherein the first climbing stick further comprises a claw claim 1 , the claw comprising:a channel receiving the second post; anddivergent wings extending from opposite sides of the channel, the divergent wings having tree gripping teeth.3. The climbing stick system of claim 2 , wherein the claw further comprises spaced ears receiving the first post therebetween.4. The climbing stick system of further comprising a second connection member carried by the second post claim 1 , wherein the first connection member engages the second connection member when rotated to the connecting state to inhibit separation of the first climbing stick and the second climbing stick and wherein the first connection member is disengaged from the second connection member rotated to the disconnected state to facilitate separation of the first climbing stick and the second climbing ...

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Номер записи: 63
08-03-2018 дата публикации

Platform ladder apparatus

Номер: US20180066474A1
Автор: Rolf Johansson
Принадлежит: Vare Invent AB

A platform ladder apparatus ( 2 ) has a transport position and a use position in which the apparatus is arranged to lean against a wall (W) for performing work at an elevated level. The apparatus ( 2 ) has a ladder ( 4 ) and a working platform ( 20 ). A proximal side of the platform is pivotally connected at an upper end of the ladder such that it may be pivoted towards the ladder ( 4 ) to a stowed position essentially parallel to the ladder ( 4 ). The apparatus further comprises a pair of wall support arms ( 80 ) for stabilizing the apparatus in the use position in relation to the wall. The wall support arms ( 80 ) are connected to the platform ( 20 ) for movement between a stowed arm position in which the arms ( 80 ) project out from a distal side ( 24 ) of the platform ( 20 ) thereby preventing use of the apparatus, and a stabilizing arm position in which the arms ( 80 ) project sideways from the platform ( 20 ) in opposite lateral directions, respectively, for stabilizing the apparatus ( 2 ) in relation to the wall (W).

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Номер записи: 64
27-02-2020 дата публикации

ENGINE MAINTENANCE LADDER

Номер: US20200063491A1
Автор: GREEN JEFFREY ALAN
Принадлежит:

Disclosed herein is a ladder adapted to service the engine of a tractor-trailer truck. The ladder comprises a set of rails having rungs extending between them. A set of rear rails is coupled to the set of rails. A pair of stability beams, terminating in ground contacting feet, extends rearward from the front rail and rear rails on each side of the ladder. A platform, extending rearward from between the set of rails, provides a planar surface allowing a mechanic access to the engine. 1. A ladder comprising:a first front side rail;a second front side rail;a plurality of rungs, wherein each rung is coupled to an inner surface of the first front side rail and an inner surface of the second front side rail;a first rear side rail coupled to the first front side rail;a second rear side rail coupled to the second front side rail;a platform extending in a rearward direction away from the first front side rail and the second first side rail;a first stabilizer beam assembly extending in the rearward direction and coupled to the first front side rail and the first rear side rail;a second stabilizer beam assembly extending in the rearward direction and coupled to the second front side rail and the second rear side rail,wherein a length of the platform is less than a length of the first stabilizer beam assembly and a length of the second stabilizer beam assembly.2. The ladder according to claim 1 , wherein a width of the platform extends past an exterior surface of the first rear side rail and an exterior surface of the second rear guide rail.3. The ladder according to claim 1 , wherein opposing sides of the platform are coupled to an upward lip along at least along a portion of the opposing sides.4. The ladder according to claim 1 , wherein a top surface of the platform is substantially planar with a top surface of a highest rung of the plurality of rungs.5. The ladder according to claim 1 , further comprising:a first support brace coupled to the first rear side rail and the ...

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Номер записи: 65
19-03-2015 дата публикации

LADDER SECURING APPARATUS, LADDERS INCORPORATING SAME AND RELATED METHODS

Номер: US20150075905A1
Автор: Ballard Jay, Cook Benjamin, Crawford Ryan, Jonas Gary M., Moss N. Ryan, Peterson Sean R., Russell Brian B.
Принадлежит:

A ladder is provided having a securing apparatus for securing the ladder to a horizontally extending support structure (e.g., a utility cable), a vertically extending support structure (e.g., a utility pole) or both. In accordance with one embodiment, the securing apparatus includes a pair of spaced apart engagement mechanisms, wherein each engagement mechanism is pivotally coupled with an associated rail of the ladder. Each engagement mechanism includes a frame member, an engagement member pivotally coupled with the frame member and a pole grasping structure coupled with the frame member. In one embodiment, each engagement member is configured to rotate from a first position, wherein an open gate is formed between the engagement member and its associated frame member, to a closed position. 1. A ladder comprising:a first pair of spaced apart rails;a plurality of rungs extending between and coupled to the first pair of spaced apart rails;a securing apparatus comprising:a pair of spaced apart engagement mechanisms, each engagement mechanism being pivotally coupled with an associated rail of the first pairs of spaced apart rails, each engagement mechanism including a frame member, an engagement member pivotally coupled with the frame member and a pole grasping structure coupled with the frame member.2. The ladder of claim 1 , further comprising a ratchet mechanism associated with each of the pivotal engagement mechanisms.3. The ladder of claim 2 , wherein each engagement member is configured to rotate from a first position claim 2 , wherein an open gate is formed between the engagement member and its associated frame member claim 2 , to a closed position wherein the engagement member and the frame member cooperatively form an enclosed structure.4. The ladder of claim 3 , wherein each engagement mechanism further includes a retaining mechanism configured to selectively maintain the engagement member in the closed position.5. The ladder of claim 4 , further comprising a ...

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Номер записи: 66
19-03-2015 дата публикации

LADDERS INCLUDING ROPE AND PULLEY SYSTEM AND FALL PROTECTION DEVICE

Номер: US20150075907A1
Автор: Jonas Gary M., Moss N. Ryan, Penrod Darius S., Peterson Sean R., Russell Brian B., Wright Bryan
Принадлежит:

A ladder is provided which may include a positioning system, a fall arrest system, or both. In one embodiment, a rope and pulley system is provided wherein a first end of the rope is coupled to a base section of the ladder, a second end of the rope is coupled with a fly section of the ladder, and the rope extends between a plurality of pulleys. In one particular embodiment, the rope extends between five different pulleys, two being coupled with the fly section and three being coupled with the base section. At least one portion of the rope may extend along the side of the ladder (e.g., along the side of a rail of the fly section) while another section may extend up the front of the ladder between the rails and in front of the rungs. A fall arrest mechanism, or an ascender device, may be coupled with the section of rope extending up the ladder between the rails and in front of the rungs. 1. A ladder comprising:a base section;a fly section slidably coupled to the base section; a rope having a first end coupled to base section and a second end coupled to the fly section;', 'a plurality of pulleys configured so that at a first section of rope extends along a side rail of the fly section and so that another section of the rope extends from a lower portion of the base section to an upper portion of the fly section while being positioned between a pair of rails of the fly section., 'a rope and pulley system comprising2. The ladder of claim 1 , wherein the another section of rope is substantially centered along both the base section and the fly section.3. The ladder of claim 1 , wherein the plurality of pulleys includes at least one pulley coupled with the fly section and at least one pulley coupled with the base section.4. The ladder of claim 2 , wherein the plurality of pulleys includes at least two pulleys coupled with the fly section and at least two pulleys coupled with the base section.5. The ladder of claim 1 , wherein the first end of the rope is coupled with a J- ...

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Номер записи: 67
24-03-2022 дата публикации

SYSTEMS AND METHODS FOR MONITORING THE CONDITION OF A FALL - PROTECTION SAFETY SYSTEM

Номер: US20220088425A1
Автор: MILLER Rick G., Thomforde Andrew K.
Принадлежит:

Systems and methods for monitoring and reporting the condition of a permanent fall-protection safety system. The systems and methods use a sensor to obtain data corresponding to a physical state of at least one component of the safety system, the at least one component and the sensor being at a remote location and/or at an elevated height, relative to a base unit. The systems and methods further include wirelessly transmitting the data to the base unit, processing the data to reach an indication of a change in a physical state of the at least one component of the safety system, and reporting the condition of the safety system based on the indication of the physical state of the at least one component of the safety system. 1. A method of monitoring and reporting the condition of a permanent fall-protection safety system , the method comprising:using a stationary, permanent, self-powered sensor to obtain data corresponding to a physical state of at least one component of the safety system, to which component a permanent, elongate member of the safety system is connected, wherein the at least one component and the sensor are at a remote location and/or at an elevated height, relative to a base unit;wirelessly transmitting the data to the base unit;processing the data to reach an indication of a change in a physical state of the at least one component of the safety system,and,reporting the condition of the safety system based on the indication of the change in the physical state of the at least one component of the safety system.2. The method of wherein the permanent claim 1 , elongate member of the safety system is a tensioned cable.3. The method of wherein the safety system is a vertical fall-protection safety system and wherein the at least one component of the safety system is a top bracket of the safety system claim 2 , to which top bracket the tensioned cable is connected.4. The method of wherein the at least one component of the safety system is a pivotally ...

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Номер записи: 68
15-03-2018 дата публикации

Unitary Tree Ladder

Номер: US20180073298A1
Автор: Hand Jon Bradford
Принадлежит:

An improved tree ladder, comprising a plurality of modular ladder sections of unitary molded construction adapted for mounting to a tree. Each of the ladder sections includes a first step and a second step with ridged step surfaces and extending from a central frame. The frame includes a pair of adjacent strap posts positioned approximately midway between the first and second steps. Upper and lower standoff members having cleats extend from the central frame and are offset below their respective steps. The first and second steps may each include a holding slot adapted to receive a human hand. The standoff members include ribs and recessed portions which allow the ladder sections to be placed in a stacked configuration which prevents lateral movement between the ladder sections. 1. An improved tree ladder , comprising:a plurality of modular ladder sections of unitary molded construction adapted for mounting to a tree, wherein each of the plurality of modular ladder sections includes:a first step;a second step;a frame centrally extending between the first and second steps, wherein the frame includes a pair of strap posts positioned on opposite sides of the frame approximately midway between the first and second steps;a first standoff member extending from the frame and offset below the first step, wherein the first standoff member includes a first pair of cleats; anda second standoff member extending from the frame and offset below the second step, wherein the second standoff member includes a second pair of cleats;wherein the first and second steps, the frame, the strap posts, and the first and second standoff members are all molded into a single structure from a single material.2. The ladder of claim 1 , wherein the frame includes a stacking strap loop.3. The ladder of claim 1 , wherein the first and second steps each include a ridged step surface.4. The ladder of claim 1 , wherein the first and second steps each include at least one holding slot adapted to receive ...

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Номер записи: 69
18-03-2021 дата публикации

STEP STOOL WITH TREAD

Номер: US20210076830A1
Автор: Marsden Andrew
Принадлежит:

Treads are provided which allow a stepping surface to be made of a rubber, plastic, or other gripping material while limiting or eliminating recesses or corners that are difficult to clean. Concentric rings of alternating hills and valleys are provided on a top surface of a step. The hills and valleys are wide, have limited slopes, and reduce abrupt directional changes in the surfaces. A user can clean the surface easily with a sponge, towel, mop, or other cleaning tool because the cleaning surface can reach most or all of the tread surface. 1. A step stool comprising:a first step having a first tread as a top surface; andone or more support members configured to be placed on a floor surface and to support and stabilize the first step above the floor surface;wherein the first tread comprises a first plurality of alternating elongated hills and valleys adjacent to one another along a top surface of the first tread;wherein, for each valley of the first plurality of elongated valleys, a slope of an imaginary line from a bottom of the valley to a peak an adjacent hill is less than 0.25 along a direction perpendicular to an elongation direction of the adjacent peak; andwherein, for each valley of the first plurality of elongated valleys, a slope of a valley wall is less than 0.5 at all points on the valley wall.2. A step stool as in claim 1 , wherein a perpendicular cross-section of two or more of the first plurality of alternating elongated hills and valleys has a top surface with a sinusoidal shape.3. A step stool as in claim 1 , wherein claim 1 , for each valley of the first plurality of elongated valleys claim 1 , a slope of an imaginary line from a bottom of the valley to a peak of an adjacent hill is less than 0.20 along a direction perpendicular to an elongation direction of the adjacent peak.4. A step stool as in claim 1 , wherein each of the hills and valleys of the first plurality of elongated hills and valleys form a partial circle or a full circle.5. A step ...

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Номер записи: 70
24-03-2022 дата публикации

Folding ladder

Номер: US20220090448A1
Автор: Mesut SELEK, Oguzhan Yildiz, Ozan Tosun, Turgut Baris Ergen
Принадлежит: WITTUR HOLDING GMBH

Folding ladder (1), in particular for accessing the cavity of a lift shaft comprising: a first side rail (2) and a second side rail (3) that are parallel; a plurality of rungs (10); a stop (15) located on the first side rail (2); a locking member (16) located on the second side rail (3); a locking arm (34) having a first end portion (34a) pivotally attached to the first side rail (2) and a second end portion (34b) that is movable between an unlocking position in which it is magnetically coupled to the stop (15) so that the locking arm (34) abuts the first side rail (2), and a locking position in which it is magnetically coupled to the locking member (16) so that the locking arm (34) is diagonally arranged with respect to both the side rails (2, 3).

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Номер записи: 71
18-03-2021 дата публикации

LADDER MOUNT ASSEMBLY FOR SHELVING

Номер: US20210079726A1
Автор: CHIAO JERRY, CHUANG YUAN-LUEN, TAM CZE-CHAO
Принадлежит:

A storage solution uses a ladder mount to support a shelving slide or the shelving member itself. The ladder mount can be attached to and extend upward from a base of an enclosure, such as a cabinet. Two or more ladder mounts can be used to support the shelf and/or shelf slide. The ladder mount can permit a shelving system having a width smaller than an enclosure width, to be installed in the enclosure, where one side of the shelf and/or shelf slide can attach to a cabinet side wall, and the other side of the shelf and/or shelf slide can attach to a free-standing ladder mount system. Alternatively, both sides of the shelf slide and/or shelf can be supported by a free-standing ladder mount system. 1. A shelving system comprising:a cabinet having a base, side walls and a rear wall;a shelf fitting inside the cabinet;a ladder mount system configured to support at least one side of the shelf the ladder mount system including at least two ladder mounts disposed to support the at least one side of the shelf, each ladder mount independently including at least two rails disposed orthogonal to the shelf and a plurality of cylindrical rungs disposed orthogonal the at least two rails, spaced apart and spanning between the at least two rails, the plurality of rungs extending between the at least two rails continuously from adjacent one end of the at least two rails to adjacent an opposite end of the at least two rails, whereinthe ladder mount system supports the at least one side of the shelf within the cabinet, above the base thereof, the ladder mount system extending from the base of the cabinet, without requiring any direct attachment to the side walls or the rear wall of the cabinet.2. The shelving assembly according to claim 1 , further comprising attachment feet at a base of each ladder mount claim 1 , the attachment feet configured to secure each ladder mount to a base member.3. The shelving assembly according to claim 1 , further comprising:a sliding rail attached to ...

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Номер записи: 72
14-03-2019 дата публикации

CASTER ASSEMBLY AND APPARATUS INCORPORATING SAME

Номер: US20190078385A1
Автор: Major Aaron B., Moss N. Ryan
Принадлежит:

A caster assembly for use with varies structures, including ladders and elevated platforms is provided. In one embodiment, the caster assembly includes a first wheel coupled with a first bracket and configured to rotate about a first axis relative to the first bracket. A shaft is coupled to the first bracket as well as to a second bracket. The first bracket is rotatable relative to the second bracket about a second axis, which may be coincident with, or parallel to, an axis of the shaft. A third bracket is coupled with the shaft and is rotatable about the second axis, the third bracket being selectively locked in at least two positions relative to the second bracket. A second wheel is coupled with the third bracket, the second wheel being rotatable relative to the third bracket about a third axis. 1. A caster assembly comprising:a first bracket;a first wheel coupled the first bracket and configured to rotate about a first axis;a shaft coupled to the first bracket and a second bracket, wherein the first bracket is rotatable relative to the second bracket about a second axis;a third bracket coupled with the shaft and being rotatable about the second axis, the third bracket being selectively locked in at least two positions relative to the second bracket; anda second wheel coupled with the third bracket, the second wheel rotatable relative to the third bracket about a third axis.2. The assembly of claim 1 , wherein the at least two positions include a first position and a second position claim 1 , the first position being approximately 90° from the second position about the second axis.3. The assembly of claim 1 , wherein the first axis and the second axis are substantially orthogonal relative to each other.4. The assembly of claim 1 , wherein the third axis and the second axis are substantially orthogonal relative to each other.5. The assembly of claim 1 , further comprising a spring disposed between a portion of first bracket and a portion of the third bracket.6. The ...

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Номер записи: 73
12-03-2020 дата публикации

Stepladder with Latch Stud and Method

Номер: US20200080376A1
Автор: Moore Devin Lee, Otis Christian M., Parker Thomas W., Rios Erick E., Wong-Shui Brian
Принадлежит: Werner Co.

A stepladder includes a front section having a first front leg and a second front leg. The stepladder includes a step attached to the first front leg and the second front leg. The stepladder includes a latch engaged with the step. The stepladder includes a rear section having a first rear leg and a second rear leg and a cross bar attached to the first rear leg and the second rear leg. The rear section is pivotably attached to the front section. The rear section has a first stud which extends from the first rear leg toward the second rear leg and separate and apart and not in contact with the second rear leg and not in contact with the cross bar. The latch is engaged with and latched to the first stud to define an engaged position where the first front leg and the first rear leg are in an open position and form an inverted v shape and are prevented from folding together, and the latch when pulled up from the engaged position, disengages from the first stud and allows the front section and rear section to fold together into a closed position where the first rear leg and the first front leg are in parallel. A method of positioning a step ladder. 1. A stepladder comprising:a front section having a first front leg and a second front leg;a step attached to the first front leg and the second front leg;a latch engaged with the step; anda rear section having a first rear leg and a second rear leg and a cross bar attached to the first rear leg and the second rear leg, the rear section pivotably attached to the front section, the rear section having a first stud which extends from the first rear leg toward the second rear leg and separate and apart and not in contact with the second rear leg and not in contact with the cross bar, the latch engaged with and latched to the first stud to define an engaged position where the first front leg and the first rear leg are in an open position and form an inverted v shape and are prevented from folding together, and the latch when pulled ...

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Номер записи: 74
02-04-2015 дата публикации

Curved Ladder for Tank Access

Номер: US20150090530A1
Автор: AMBRIZ STEVEN RICHARD
Принадлежит:

A ladder is designed for a tank having a vertically extending side wall and a top of a convex curved profile, with an access point near the top center of the convex curved top, the ladder having a pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end, the curved section extending over the top of the tank and toward the access point, with plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails. 1. A ladder comprising:a. A pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end; andb. A plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails.2. The ladder of claim 1 , further including at least one mounting bracket for securing the ladder to a wall.3. A ladder for a tank having a vertically extending side wall and a top of a convex curved profile claim 1 , with an access point near the top center of the convex curved top claim 1 , the ladder comprising;a. A pair of parallel side rails, each side rail having a straight section at one end and a curved section at the other end;b. a plurality of rungs extending between and secured to the side rails, with at least one rung positioned in the straight section of the side rails and at least one rung positioned in the curved section of the side rails; andc. at least one mounting bracket for securing the ladder to tank side wall.4. The ladder of claim 3 , wherein the straight sections of the parallel side rails are substantially vertical.5. The ladder of claim 3 , wherein the curved sections of the parallel side rails extend along the convex curved top of the tank.6. The ladder of claim ...

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Номер записи: 75
02-04-2015 дата публикации

ASSEMBLED A-SHAPED LADDER

Номер: US20150090531A1
Автор: YANG PI-CHEN
Принадлежит:

An assembled ladder is formed by coupling a top ladder segment, a plurality of middle ladder segments, and a plurality of bottom ladder segments together. The bottom ladder segments include a ladder body, support frame assemblies, ancillary frames, adjustable support pads, and adjustable coupling members. The support frame assemblies are respectively set at two sides of the ladder body. The ancillary frames are mounted to the support frame assembly. The adjustable support pads are screwed to the ancillary frames. The adjustable coupling members have an end coupled to the support frame assemblies and are partially received in the receiving space. With the adjustable coupling members fixing the support frame assemblies, the ancillary frames are expanded. Through adjustment made with the adjustable support pads, the ladder can be set more stably to achieve safety and convenience of use. 1. An assembled A-shaped ladder , which is an assembled ladder that is formed by coupling together a top ladder segment , a plurality of middle ladder segments , and a plurality of bottom ladder segments , wherein the bottom ladder segments comprise:a ladder body, which comprises a receiving space formed therein;a plurality of support frame assemblies, which has an end coupled to the ladder body, the support frame assemblies being respectively set at two sides of the ladder body;a plurality of ancillary frames, which is movably mounted to an end of the support frame assemblies that is distant from the ladder body;a plurality of adjustable support pads, which is screwed to an end of the ancillary frames that is distant from the support frame assemblies; anda plurality of adjustable coupling members, which functions for adjusting and fixing the support frame assemblies and the ladder body, the adjustable coupling members having an end coupled to the support frame assemblies and an opposite end received in the receiving space.2. The assembled A-shaped ladder according to claim 1 , wherein ...

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Номер записи: 76
02-04-2015 дата публикации

COLLAPSIBLE ESCAPE LADDER WITH GUARDS

Номер: US20150090532A1
Автор: Engvoldsen Kjetil
Принадлежит:

A collapsible escape ladder, including a first upright, a second upright, and a plurality of elongated rungs that extend between the first and second uprights and that are rotatably attached to the first and second uprights about a first and second rotation axis, respectively, that extend perpendicular to a ladder plane spanned by the first and second uprights and the rungs. The ladder has a closed state where the rungs are substantially hidden between the uprights and an open state where the rungs extend between the uprights and perpendicular to a building wall and wherein the ladder extends downward from an escape point to the ground. The ladder further comprises a plurality of rigid, elongated guard profiles extending parallel to the rungs, and each guard profile is connected to the uprights through a first side profile between one end of the guard profile and the first upright and a second side profile between the other end of the guard profile and the second upright, and wherein the guard profile is moveable from a position adjacent the rungs in the closed state to a position at a distance perpendicular to the ladder plane in the open state. 1. A collapsible escape ladder , comprising:a first upright;a second upright; anda plurality of elongated rungs that extend between the first and second uprights and that are rotatably attached to the first and second uprights about a first and second rotation axis, respectively, that extend perpendicular to a ladder plane spanned by the first and second uprights and the rungs;wherein the ladder has a closed state where the rungs are substantially hidden between the uprights and an open state where the rungs extend between the uprights and perpendicular to a building wall and wherein the ladder extends downward from an escape point to the ground;wherein the ladder further comprises a plurality of rigid, elongated guard profiles extending parallel to the rungs, wherein each guard profile is connected to the uprights through ...

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Номер записи: 77
29-03-2018 дата публикации

Portable Workbench Assembly

Номер: US20180085912A1
Автор: Cindric Owen, White Brett
Принадлежит:

A portable workbench assembly includes a table. Objects may be positioned on the table thereby facilitating the objects to be accessible. A handle is hingedly coupled to the table thereby facilitating the table to be carried. A pair of stands is provided and each of the stands is hingedly coupled to the table. Each of the stands is selectively positioned in a deployed position to abut a support surface. Each of the stands is selectively positioned in a stored position. 1. A portable workbench assembly having a centrally positioned handle wherein said assembly is configured to be carried , said assembly comprising:a table being configured to have objects positioned thereon thereby facilitating the objects to be accessible;a handle being hingedly coupled to said table wherein said handle is configured to be gripped thereby facilitating said table to be carried; anda pair of stands, each of said stands being hingedly coupled to said table, each of said stands being selectively positioned in a deployed position wherein each of said stands is configured to abut a support surface thereby facilitating said table to be spaced from the support surface, each of said stands being selectively positioned in a stored position.2. The assembly according to claim 1 , wherein said table comprises a frame having a pair of first members extending between a pair of second members claim 1 , said first members being spaced apart from each other such that said frame has a rectangular shape claim 1 , each of said first members having an outwardly facing surface claim 1 , each of said second members having a downwardly facing surface.3. The assembly according to claim 2 , further comprising a plurality of third members claim 2 , each of said third members being coupled to and extending between each of said second members claim 2 , said third members being spaced apart from each other.4. The assembly according to claim 3 , wherein said plurality of third members includes a middle member claim ...

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Номер записи: 78
29-03-2018 дата публикации

WHEELED LADDER

Номер: US20180087320A1
Автор: Lindner Ethan, Lindner Shey
Принадлежит:

A wheeled ladder may comprise a ladder having an axle disposed within a rung, and a wheel mounted at each end of the axle. 1. A wheeled ladder comprising:a ladder having a plurality of rungs, the ladder being substantially flat or capable of folding to a substantially flat configuration;an axle disposed through the ladder substantially parallel to a rung;a first wheel rotatably mounted to a first end of the axle; anda second wheel rotatably mounted to a second end of the axle.2. The wheeled ladder of claim 1 , the axle comprising a first section and a second section claim 1 , the first section and second section being removably joined.3. The wheeled ladder of claim 2 , wherein the first section and the second section may be threadably joined.4. The wheeled ladder of claim 2 , wherein the axle is disposed in one of the plurality of ladder rungs.5. The wheeled ladder of claim 4 , wherein the axle is substantially non-translatably disposed in the rung.6. The wheeled ladder of claim 6 , wherein the axle is substantially non-rotatably disposed in the rung.7. The wheeled ladder of claim 1 , the ladder comprising a straight ladder claim 1 , an extension ladder claim 1 , an extension trestle ladder or a foldable step ladder.8. The wheeled ladder of claim 2 , wherein the axle is disposed through corresponding holes formed in the ladder frame.9. A wheel kit for a ladder claim 2 , the wheel kit comprising:an axle configured for disposition in the rung of a ladder, the axle comprising a first section and a second section, the first section and the second section being configured for removably coupling together;a first wheel rotatably and non-translatably mounted to the first section; anda second wheel rotatably and non-translatably mounted to second section.10. The wheel kit of claim 9 , the first section and the second section being configured for threadable coupling together.11. The wheeled kit of claim 10 , the ladder comprising a straight ladder claim 10 , an extension ...

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Номер записи: 79
31-03-2016 дата публикации

LOCKING JOINT FOR COLLAPSIBLE LADDERS AND OTHER STRUCTURES

Номер: US20160090783A1
Автор: Ball Nathan, Gallup Benjamin, Schmid Bryan, Walker Daniel
Принадлежит:

A rigid structure such as a ladder is disclosed having rotating hinges that allow the ladder to fold up and/or be disassembled and assembled. The hinge or hinges can be provided between ladder sections with one ladder section having a male hinge element, and another having a female hinge element. A cam element provided with the female hinge element can be moved between an unlocked position in which the ladder sections can rotate with respect to each other, and a locked position in which the structure is rigid. 1. A ladder comprising:a first ladder section including two rails and at least two rungs, each rung extending between the two rails, the first ladder section including a first ladder section connecting end having a first ladder section locking feature;a second ladder section including at least one rail and having a second ladder section connecting end having a second ladder section locking feature;a female hinge element provided on a first one of the first and second ladder section connecting ends and having an opening with an internal cam surface; anda male hinge element provided on a second one of the first and second ladder section connecting ends and having a transverse connecting element having a cam follower, the transverse connecting element extending into the opening in the female hinge element such that the cam follower contacts the internal cam surface;wherein movement of the male and female hinge elements to an unlocked position allows the first and second ladder sections to rotate relative to each other while movement of the male and female hinge elements to a locked position causes the first ladder section locking feature and the second ladder section locking feature to engage each other to prohibit relative rotation between the first and second ladder sections.2. The ladder of claim 1 , wherein the male hinge element transverse connector is provided on a rail and is transverse to the rail.3. The ladder of claim 2 , wherein the female hinge ...

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Номер записи: 80
21-03-2019 дата публикации

ACCESS PLATFORM SYSTEM WITH INTEGRATED FOLDING STEPS

Номер: US20190085635A1
Автор: LaCosse Justin Sven, Simula Glen Raymond
Принадлежит:

An access platform system for enabling access to and from ground-based structures, vehicles, and mobile equipment. The system has a main frame that is attached to or juxtaposed with one or more of the ground-based structures, vehicles, and mobile equipment; a vertical platform displacement assembly attached to the main frame; and a folding steps assembly. The vertical displacement mechanism has a multi-stage apparatus for influencing the stroke of lift cylinders. In one embodiment, the folding steps assembly has electromechanical means for folding and unfolding the steps. 1. An access platform system for enabling access to and from elevated ground-based structures , vehicles , and mobile equipment , the system having:A. a main frame that is attached to or juxtaposed with one or more of the ground-based structures, vehicles, or mobile equipment, 'a platform assembly for permitting personnel to stand or ride to raise the personnel to an elevated level or lower them therefrom to a lower or ground level;', 'B. a vertical displacement mechanism that is attached to the main frame, the vertical displacement mechanism having steps;', 'a means for folding the steps so that the steps are displaceable to, from and between a folded up configuration and a folded down configuration,', 'the folded up configuration allowing the vertical displacement mechanism to freely move upwardly and downwardly without interference by the steps;', 'the folded down configuration securing the steps in place, the folded down configuration being a default configuration that permits ingress and egress of persons to or from the ground-based structures, vehicles, and mobile equipment; and, 'C. a folding steps assembly attached to the main frame, the folded steps assembly havingD. an electronic controller for influencing position or movement of the vertical displacement mechanism and/or the folding steps assembly, the platform assembly being configured to be deployable within an area circumscribed by ...

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Номер записи: 81
05-05-2022 дата публикации

LADDER SAFETY DEVICE

Номер: US20220136328A1
Автор: KEY Kevin, LAJOIE Alex, Lussier Pierre-Luc
Принадлежит:

A ladder safety device () for removably securing a ladder () to a parapet wall () of a rooftop (), including: a pair of support clamps () securable to the parapet wall (), each said support clamp () including a first support member (), a second support member (), and an extended arm () joining said first support member () to said second support member (), wherein a distance between said support members () defines a width adjustable to the width of the parapet wall (); an elongate plate () connecting said pair of support clamps () to each other; and at least one ladder hook () extending from said elongate plate () for securely receiving a rung of the ladder ().

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Номер записи: 82
19-03-2020 дата публикации

ROOFTOP FALL PROTECTION SYSTEM

Номер: US20200087984A1
Автор: Wells Arthur J.
Принадлежит:

The present invention discloses a rooftop fall protection system including a plurality of mast assemblies and at least one ladder assembly removably engaged with the mast assembly. The ladder facilitates the elevation of a human to an elevated surface on a structure. Each of the ladder assemblies and mast assemblies are coupled to at least one cross-member positioned at a height above the perimeter of the elevated surface. The cross-member protects the human from falling from the elevated surface of the structure. 1. A fall protection system comprising:a plurality of mast assemblies;at least one ladder assembly removably engaged with the at a mast assembly, the ladder assembly facilitating the elevation of a human to an elevated surface of a structure; andat least one cross-member positioned at a height above the perimeter edge of the elevated surface, the at least one ladder assembly and the at least one mast assembly removably engaged with the at least one cross-member to protect the human from falling from the elevated surface.2. The system of claim 1 , wherein the ladder assembly is comprised of a main ladder claim 1 , and one or more ladder extensions.3. The system of claim 1 , further comprising at least one support assembly stabilizing each ladder to a surface.4. The system of claim 1 , wherein each mast assembly includes an extendable central portion separating a top portion and a base portion.5. The system of claim 4 , wherein the top portion of each of the plurality of mast assemblies is configured to releasably engage with a canopy that covers at least a portion of the elevated surface of the structure claim 4 , the mast assemblies configured to hold the canopy above the structure at a sufficient height to enable a human to work under the canopy above the elevated surface of the structure.6. The system of claim 4 , wherein the base portion is configured to anchor to a surface.7. The system of claim 1 , wherein the elevated surface is defined by at least ...

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Номер записи: 83
01-04-2021 дата публикации

WORK PLATFORM

Номер: US20210095482A1
Автор: Fleming Joshua Patrick, LAM Brian
Принадлежит: The Boeing Company

A work platform includes a frame and a deck. The frame has a plurality of frame members that are interconnected. The frame members define a trough that extends a length of the frame and is configured to accommodate a refueling boom of an aircraft such that the refueling boom extends through the frame within the trough. The deck is mounted to the frame to provide a stand. The deck includes a first deck panel and a second deck panel spaced apart from each other to define an opening to the trough. 1. A work platform comprising:a frame having a plurality of frame members that are interconnected, wherein the frame members define a trough that extends a length of the frame and is configured to accommodate a refueling boom of an aircraft such that the refueling boom extends through the frame within the trough; anda deck mounted to the frame to provide a stand, wherein the deck includes a first deck panel and a second deck panel spaced apart from each other to define an opening to the trough.2. The work platform of claim 1 , wherein the trough is disposed between a first section of the frame and a second section of the frame claim 1 , and wherein a bottom of the trough is defined by multiple frame members of the frame that extend from the first section to the second section.3. The work platform of claim 1 , wherein the frame extends a width from a first side of the frame to a second side of the frame opposite the first side claim 1 , wherein the trough is spaced apart from each of the first side and the second side.4. The work platform of claim 1 , further comprising a support member mechanically connected to the frame in-line with the trough claim 1 , wherein the support member is non-rigid and configured to hold the refueling boom when the refueling boom is in a lowered position relative to the aircraft.5. The work platform of claim 4 , wherein the support member is located between a first end and a second end of the frame and extends across the trough.6. The work ...

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Номер записи: 84
12-05-2022 дата публикации

Combination Hunting Stand and Cart

Номер: US20220145699A1
Автор: Vogt Mark Edward
Принадлежит:

Herein disclosed is a platform apparatus which attaches to the top of a conventional ladder or extension ladder, and a wheeled apparatus which attaches to said ladder, thus forming a single composite apparatus. Said composite apparatus can then operate as a cart for transporting itself, equipment and other loads to and from usage locations, and said composite apparatus can operate as an elevated platform when attached to a tree or similar elevated surface. 1. Apparatuses which can be attached to a conventional ladder or extension ladder in order to enable said ladder operate as both a cart when said ladder is on the ground , and as an elevated platform when said ladder is placed against a tree or similar elevated surface; comprising:a platform apparatus, capable of being attached to the top of said ladder, making it possible to sit or stand at the top of said ladder when said ladder is placed against a tree or similar elevated surface;a wheel apparatus, capable of being attached to said ladder, making it possible to transport the ladder as one would a cart.2. A platform apparatus from comprising:a platform appliance having a structure with an upper surface acting as a platform, a lower surface, a front surface and a rear surface;a ladder attachment appliance secured to lower front surface of said platform appliance, and possessing adjustable brackets to enable attachment of said platform apparatus to the top of said ladder, allowing operation with ladders of variable dimensions;a tree attachment appliance attached near the rear surface of said platform apparatus, shaped to permit attachment a variety of diameters of tree or similar surface, and possessing a plurality of appendages to enable secure attachment of said platform apparatus to said tree or similar surface; and3. A wheel apparatus from comprising:a ladder attachment appliance having an adjustable framed structure capable of adapting to ladders of varying width, and of being secured to said ladder, with ...

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Номер записи: 85
12-05-2022 дата публикации

Folding elevated working platform

Номер: US20220145700A1
Автор: Aaron B. Major, Darius S. Penrod, N. Ryan Moss, Steven S. MINER
Принадлежит: Little Giant Ladder Systems LLC

Elevated work platform apparatuses, as well as associated methods, are provided. One elevated platform apparatus comprises a first assembly having a pair of rails coupled with a plurality of rungs, a second assembly hingedly coupled with the first assembly, a platform pivotally coupled with the first assembly and configured to extend to, and engage a portion of, the second assembly. The apparatus further includes a cage associated with the platform. The cage may include a guard structure including a pair of gates. A locking mechanism may be associated with the platform and include a latch member for engagement with a cross-member of the second assembly. Actuation of the locking member may include a “pulling” action by a user standing in front of the apparatus and reaching between the two rails of the first assembly.

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Номер записи: 86
28-03-2019 дата публикации

Foldable ladder

Номер: US20190093428A1
Автор: Allen A. Caldwell, Mitchell I. Kieffer, Nathan L. Schlueter
Принадлежит: Core Distribution Inc

A foldable ladder has a first ladder portion and a second ladder portion hingedly attached to the first ladder portion by a pair of hinge mechanisms. Each hinge mechanism adapted to lock the first and second ladder portions such that the first ladder portion and the second ladder portion form an angle therebetween. The hinge mechanism has a locking pin to lock the first and second ladder portions at an angular position. Each rung is connected to a column by a connector assembly having first and second release buttons.

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Номер записи: 87
28-03-2019 дата публикации

ELEVATED WORKING PLATFORM AND RELATED METHODS

Номер: US20190093429A1
Автор: Moss N. Ryan, RUSSELL Brian
Принадлежит: WING ENTERPRISES, INCORPORATED

Elevated work platform apparatuses, as well as associated methods, are provided. In one particular embodiment, an elevated platform apparatus is provided comprising a first assembly having a pair of rails coupled with a plurality of rungs, a second assembly hingedly coupled with the first assembly, a platform pivotally coupled with the first assembly and configured to extend to, and engage a portion of, the second assembly. The apparatus further includes a cage associated with the platform. The cage may include at least one bar and at least one gate, the at least one gate being configured to swing in a first direction upon a user stepping on to the platform from the first rail assembly, and then swing back to a closed position after the user is standing on the platform. platform includes a toe-kick structure that is collapsible relative to the deck of the platform. 1. An elevated platform apparatus comprising:a first assembly having a pair of rails coupled with a plurality of rungs;a second assembly having a pair of rails, wherein the first assembly and the second assembly are configured to pivot relative to each other about at least one hinge member between a deployed state and a collapsed state;a platform pivotally coupled to the first assembly, wherein when the first and second assemblies are in the deployed state, the platform extends from the first assembly and engages a portion of the second assembly; a pair of extension members, each extension member including a first member and a second member telescopingly coupled with the first member, the first member being pivotally coupled with an associated rail of the pair of rails of the first assembly,', 'an upper bar pivotally coupled with the pair of extension members and also pivotally coupled with the pair of rails of the first assembly,', 'a lower bar pivotally coupled with the pair of rails of the second assembly,', 'at least one gate coupled with at least one of the pair of extension members;, 'a cage ...

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Номер записи: 88
12-04-2018 дата публикации

MATERIALS HANDLING SYSTEM

Номер: US20180100351A1
Автор: Bright Stephen
Принадлежит: Bright Structures Ltd

A materials handling system () comprising a first () and second ladder () section connectable together to form a longer ladder, a tensioning system () attached to each section for tensioning the connected ladder sections, and a trolley () arranged to travel along the connected ladder sections, wherein the system includes a cable () and pulley for moving the trolley along the connected ladder sections. 1. A materials handling system comprising a first and second ladder section connectable together to form a longer ladder , a tensioning system attached to each section for tensioning the connected ladder sections , and a trolley arranged to travel along the connected ladder sections , wherein the system includes a cable and pulley for moving the trolley along the connected ladder sections , and wherein the trolley comprises an automatic brake for preventing the trolley from travelling in one direction relative to the longer ladder's linear length.2. The materials handling system of claim 1 , wherein at least one surface on one stile of each first and second ladder section are contiguous with one another.3. The materials handling system of claim 1 , wherein the ladder sections are connectable together by means of a male projection arranged at the end of one of the two sections and a corresponding female socket arranged at the end of the other of the two sections.4. The materials handling system of claim 1 , wherein the tensioning system comprises a clamp arranged across the junction of the two ladder sections.5. The materials handling system of claim 1 , wherein the tensioning system comprises a mast extending away from the longer ladder and a cable attachable to the mast and/or either or both ladder sections claim 1 , wherein the mast is arranged to hold the cable away from the longer ladder.6. The materials handling system of claim 5 , wherein the mast comprises two pairs of braces claim 5 , each pair arranged to be releasably attached to the longer ladder claim 5 , ...

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Номер записи: 89
03-07-2014 дата публикации

Manually Portable Structural Apparatus

Номер: US20140182968A1
Автор: "ODell Ian", Higham Kevin
Принадлежит: SIGMA COMPOSITES LIMITED

Manually portable structural apparatus comprising a rigid structural element configured to be releasably coupled to at least one other like rigid structural element. A bearer element having a substantially planar upper face extends between first and second elongate side beams, which each have a first connector arrangement at a first end thereof and a second connector arrangement at the second end thereof; the first and second connector arrangements providing a two-part releasable, mechanical, coupling arrangement. The first and second elongate side beams are configured to provide first and second side walls extending upwardly from the upper face of the bearer element. Use of a rigid structural element as part of a short gap crossing and as part of a stretcher. A rigid structural element in which the bearer element defines foot receiving apertures therethrough and use thereof as part of a ladder. A rigid structural element comprising carbon fibre. 1. Manually portable structural apparatus for use in facilitating physical onward movement of a person , comprising a rigid structural element configured to be releasably coupled to at least one other like rigid structural element , said rigid structural element comprising:a bearer element, presenting a substantially planar upper face and a lower face and extending between first and second elongate side beams,said first and second elongate side beams each extending in a first, longitudinal direction and being spaced apart from the other said elongate side beam in a second, transverse direction that is substantially perpendicular to said first, longitudinal direction, andsaid first and second elongate side beams each having a first connector arrangement at a first end thereof and a second connector arrangement at the second end thereof;said first connector arrangement and said second connector each being one part of a two-part releasable, mechanical, coupling arrangement; andsaid first and second elongate side beams ...

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Номер записи: 90
13-04-2017 дата публикации

Ladder Wheel

Номер: US20170101822A1
Автор: Thomas Steiner
Принадлежит: Individual

The invention relates to a ladder that includes a support device. A mounting plate is securely fixed to an outer surface of a side rail of a ladder, which is adjacent to one end of the ladder. A removable wheel assembly has a frame that is removably supported on mating interfitting parts between the wheel assembly and the support member or plate. The support member includes a bracket member and a rotatable device, such as a wheel, that is housed in the bracket member. The bracket member includes a U-shaped section for retaining the wheel member, and an elongated section for attachment to the ladder. The device is used for easily moving the ladder from one place to another. The interchange from one ladder to another is simply by unbuckling it from one ladder, pulling it off, sliding it on the new ladder, and buckling it back on. The ladder wheel should be placed between the top of the ladder and the first step from the top of the ladder.

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Номер записи: 91
13-04-2017 дата публикации

LADDER ATTACHMENT SYSTEM FOR A WIND TURBINE

Номер: US20170101823A1
Автор: Reed James Eric, Yenser Ronald Lawrence
Принадлежит:

The present disclosure is directed to a ladder attachment system for securing a ladder within a tower of a wind turbine. The ladder has parallel legs and a plurality of rungs arranged perpendicularly between the parallel legs. The ladder attachment system includes at least one external stiffener configured at a top end of each of the parallel legs. Each of the external stiffeners includes a longitudinal body having an open cross-section configured to receive one of the parallel legs along a length thereof. Further, the ladder attachment system also includes a load-bearing bracket assembly configured with each of the external stiffeners. In addition, the ladder attachment system includes at least one support arm arranged in a horizontal plane and configured with each of the parallel legs, with the support arms being spaced apart from the load-bearing bracket assembly along a height of the ladder. 1. A ladder attachment system for securing a ladder within a tower of a wind turbine , the ladder having parallel legs and a plurality of rungs arranged substantially perpendicularly between the parallel legs , the ladder attachment system comprising:at least one external stiffener configured at a top end of each of the parallel legs, each of the external stiffeners comprising a longitudinal body having an open cross-section configured to receive one of the parallel legs along a length thereof;a load-bearing bracket assembly configured with each of the external stiffeners;a pair of parallel support arms configured with each of the parallel legs, the support arms being arranged in a substantially horizontal plane and spaced apart from the load-bearing bracket assembly along a height of the ladder; and,a spacer assembly secured between the pair of parallel support arms, each spacer assembly comprising a pair of opposing connectors, each of the opposing connectors secured between one of the support arms and one of the parallel legs, each of the opposing connectors comprising ...

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Номер записи: 92
04-04-2019 дата публикации

ELEVATED WORKING PLATFORM AND RELATED METHODS

Номер: US20190100964A1
Автор: Jonas Gary, Moss N. Ryan, Penrod Darius S., Peterson Sean, RUSSELL Brian
Принадлежит: WING ENTERPRISES, INCORPORATED

Elevated work platforms, as well as associated methods, are provided. In one particular embodiment, an elevated platform apparatus is provided comprising a first rail assembly having a pair of rails coupled with a plurality of rungs, a second rail assembly hingedly coupled with the first rail assembly, a platform configured to rest upon a portion of the first rail assembly and the second rails assembly and a cage associated with the platform. The cage may include at least one bar and at least one gate, the at least one gate being configured to swing in a first direction upon a user stepping on to the platform from the first rail assembly, and then swing back to a closed position after the user is standing on the platform. The at least one gate is also limited from being displaced in a second direction, opposite the first direction, beyond the closed position. 1. An elevated platform apparatus comprising:a first assembly having first inner rail assembly slidably coupled with a first outer rail assembly;a second assembly having a second inner rail assembly slidably coupled with a second outer rail assembly the second assembly being hingedly coupled with the first assembly, the first assembly and the second assembly being selectively positionable relative to each other between a deployed state and a collapsed state;a platform pivotally coupled with the first assembly and configured to extend between spaced apart portions of the first assembly and the second assembly when they are in the deployed state;a cage including at least one frame member and at least one gate collectively forming a barrier substantially surrounding an area above the platform when the first and second assemblies are in the deployed state and when the at least one gate is in a closed position, the at least one gate being selectively positionable from a closed position to an open position wherein the at least one gate is rotated inwardly such that a portion of the at least one gate extends into the ...

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Номер записи: 93
21-04-2016 дата публикации

Ladder Holder

Номер: US20160108670A1
Автор: Youlyahshiev Bahodir
Принадлежит:

A ladder holder for mounting a ladder in an upright orientation relative to a retaining wall is disclosed. The holder includes a mounting portion for coupling in fixed relation to the wall in a mounted position and a support portion supported fixedly on the mounting portion. The mounting portion has a first clamping surface and a second clamping surface that is moveable relative to the first clamping surface. The first and second clamping surfaces frictionally engage the inner and outer surfaces of the top beam of the retaining wall. The support portion has upper and lower rung-receiving slots used in conjunction to mount the ladder on the support portion at a fixed angle relative to the mounting portion. Furthermore, the storage slot suspends the ladder vertically from the support portion independently of the upper and lower slots. 1. A ladder holder for mounting a ladder in an upright orientation relative to a wall having an inner surface lying in a vertical plane and an opposite outer surface , in which the ladder has two rails extending longitudinally and a plurality of rungs spanning laterally between the rails at uniform longitudinal intervals , the holder comprising:a mounting portion arranged for coupling in fixed relation to the wall in a mounted position;the mounting portion forming a hook arranged so as to extend about an upper edge of the wall from the inner surface to the outer surface of the wall in the mounted position with the hook including an apex at its top for receiving the upper edge of the wall in butting engagement in the mounted position; a pair of first slots on opposite lateral sides of the support portion that collectively define an upper slot;', 'a pair of second slots on opposite lateral sides of the support portion that collectively define a lower slot;', 'the slots on opposing lateral sides being arranged so that the slots are spaced apart one from the other by a distance smaller than that between the rails of the ladder such that, in ...

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Номер записи: 94
21-04-2016 дата публикации

CUSTOM MOLD PRESS LADDER

Номер: US20160108671A1
Автор: Cale Andrew Stephan
Принадлежит:

A ladder that employs an existing custom mold press frame to support itself thereon is provided along with a method of installation. A clamping engagement system employed by such a ladder is also provided along with a kit for installing the ladder with a mold press frame. 1. A ladder that employs an existing custom mold press frame to support itself thereon , comprising:a ladder frame having a pair of elongate members depending generally in parallel relative to one another with a predetermined distance defined therebetween, with each elongate member having a predetermined length coextensive with a support extent and an opposed free extent;one or more steps securely disposed between the elongate members so as to support a person stepping thereon;a platform having a predetermined platform length and a predetermined platform width generally corresponding to the predetermined distance between the elongate members, the platform being supported along a length of the elongate members intermediate the support extents and free extents thereof and including a support surface and an opposed anchoring surface from which an anchor depends downwardly to facilitate initial installation and securement of the ladder relative to the mold press frame;a pair of scaffold members depending upwardly from the platform support surface in parallel relation to one another and separated by a distance about equal to the predetermined platform width, with each scaffold member having a predetermined height coextensive with a fixed scaffold extent and an opposed free scaffold extent;at least one grab bar having opposed free extents removably secured to corresponding free extents of the elongate members and the scaffold members; anda clamping engagement system for removable securement of the ladder to the mold press frame.2. The ladder of claim 1 , wherein the anchor includes at least one depending member terminating in a support link from which one or more supports depend and each support includes ...

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Номер записи: 95
30-04-2015 дата публикации

Folding and Self-Erecting Ladder

Номер: US20150114754A1
Автор: Mountain Maurice J.
Принадлежит:

A folding, self-erecting ladder for use in the marine environment comprises two rigid side rails with holes for holding rungs. Bungee cord is thread through the rungs and rails to tension the rails toward each other top hold the rungs in the rail holes. The ladder can be folded by pulling the rails apart, allowing the rungs to leave the rail holes, and moving the rails closer to each other, trapping the rungs therebetween, and binding the folded ladder to hold it in the folded position. 1. A folding ladder comprising:first and second rails, each with inner and outer walls, a circumferential edge joining said walls, and having a top and bottom end,a plurality of hollow rungs of even or odd number with at least an upper rung and a lower rung, andmeans for holding said rungs in position between said rails, wherein;each said first and second rails has a plurality of rail holes to accept one end of one of said plurality of rungs, wherein;said means for holding comprises elastic cord means with first and second ends passing through each said rung and said rails to tension said first and second rails toward each other to hold said rungs into engagement with said rail holes, further wherein, each said plurality of rail holes comprises at least two sizes, a first size extending less than fully through said rail from the inner rail wall and sized to accept one said rung, and a second size, smaller than said first size, extending from said rail outer wall and meeting said first size hole, said second size chosen to allow said elastic cord means to pass therethrough but to stop said rung at an intermediate position in said rail.2. The ladder of wherein claim 1 ,each of said rungs is held in place by a length of said elastic cord, said cord having an enlargement at each first and second end to bear against said rail outer walls, said elastic cord tensioned to hold each rung in said rail hole by tensioning said rails toward each other.3. The ladder of wherein claim 2 ,said ...

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Номер записи: 96
30-04-2015 дата публикации

MARINE LADDER

Номер: US20150114755A1
Автор: EAMES Rosalie Helen
Принадлежит:

A marine ladder comprising a pair of laterally spaced step support members having a plurality of steps secured therebetween; said steps positioned between a lower portion and an upper portion of said step support members; an attachment member to secure said ladder to a platform; an adjustable support leg extending outwardly to abut a portion of said platform thereby positioning said steps in a generally horizontal plane; and wherein each successive step from said upper portion to said lower portion has a larger step tread than a preceding step. 2. The ladder of claim 1 , further comprising a lower-most step that is a platform step.3. The ladder of claim 1 , wherein each successive step is 3 inches larger than the one above it.4. The ladder of claim 1 , wherein each of said step support members comprises a front support member and a rear support member and the step support member is configured in a generally obtuse trapezoid shape such that said front support member and said rear support member diverge from each other as they extend downward toward the lower-most step.5. The ladder of claim 4 , wherein said plurality of steps comprise a non-slip mechanism to provide traction.6. The ladder of claim 4 , wherein said plurality of steps comprise apertures to permit flow of water therethrough to facilitate deployment in water or removal therefrom.7. The ladder of claim 4 , wherein said support leg has an adjustable length.8. The ladder of claim 7 , wherein said support leg comprises a telescoping portion slidably received by a collar securedly attached to at least one of said step support members and one of said plurality of steps.9. The ladder of claim 8 , wherein said telescoping portion is fixedly maintained at a desired length by a fastener.10. The ladder of claim 9 , wherein said desired length is chosen to provide a desired ladder slope claim 9 , such that said plurality of steps are in a substantially horizontal plane.11. The ladder of claim 10 , wherein said ...

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Номер записи: 97
02-04-2020 дата публикации

MODULAR STAIRCASE

Номер: US20200102094A1
Автор: SPRINGER Jacob W.
Принадлежит: FEDERAL EXPRESS CORPORATION

A modular staircase is disclosed. The modular staircase includes a first staircase section having a plurality of steps and a first support member detachably connected to the first staircase section. Further, the modular staircase includes a second stair module having a second staircase section including a plurality of steps and a second support member detachably connected to the second staircase section and to the first support member. The modular staircase further includes a third stair module having a third staircase section including a plurality of steps and a retractable third support member detachably connected to the third staircase section and to the second support member. The third support member may be configured to raise or lower the third staircase section relative to the second staircase section. 138-. (canceled)39. A modular staircase , comprising: a first staircase section having a first plurality of steps progressing from a first proximal end to a first distal end; and', 'a foldable first support member connectable to the first distal end, the first support member configured to position the first distal end at a first level higher than the first proximal end; and, 'a first stair module including a second staircase section having a second plurality of steps progressing from a second proximal end to a second distal end, the second staircase section being connectable to and detachable from the first stair module at the second proximal end; and', the first staircase section includes at least one mounting bar disposed adjacent the first distal end, and', 'the second stair module includes at least one fastener configured to be engaged with the at least one mounting bar., 'a foldable second support member connectable to the second distal end, the second support member configured to position the second distal end at a second level higher than the second proximal end, wherein'}], 'a second stair module including'}40. The modular staircase of claim 39 , wherein ...

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Номер записи: 98
29-04-2021 дата публикации

LADDER TRIPOD ASSEMBLY AND SYSTEM

Номер: US20210123302A1
Автор: Caldwell Allen A., Kieffer Mitchell I.
Принадлежит:

The invention provides a tripod assembly comprising a plurality of legs, a central support member, and a central post. Each of the legs is pivotably coupled to the central support member. The central support member surrounds the central post. A plurality of columns is disposed in a nested arrangement for relative axial movement in a telescopic fashion along an axis of the plurality of columns between a fully-extended position and a collapsed position. The columns are received in the central post when the columns are in the collapsed position. A first end of a connecting rod is coupled to one of the columns. A bracket assembly is coupled to a second end of the connecting rod and is configured to receive a rung of a ladder therein. A bracket member is coupled to an uppermost column and includes a channel configured to receive a second rung of the ladder therein. 1. A tripod assembly comprising:a plurality of legs;a central support member, each of the legs being pivotably coupled to the central support member;a central post, the central support member surrounding the central post;a plurality of columns disposed in a nested arrangement for relative axial movement in a telescopic fashion along a longitudinal axis of the plurality of columns between a fully-extended position and a collapsed position, wherein each column has a hollow body such that when the columns are collapsed from the fully-extended position, each column substantially nests within another one of the columns, the plurality of columns being received within the central post when the plurality of columns is in the collapsed position;a connecting rod having a first end and a second end, the first end being coupled to one of the columns;a bracket assembly coupled to the second end of the connecting rod, the bracket assembly being configured to receive a selectable rung of a ladder therein; anda bracket member coupled to an uppermost one of the columns, the bracket member including a channel configured to ...

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Номер записи: 99
10-07-2014 дата публикации

STEPLADDERS AND RELATED METHODS

Номер: US20140190768A1
Автор: Crawford Ryan, Jonas Gary M., Moss N. Ryan, Peterson Sean R.
Принадлежит: WING ENTERPRISES, INCORPORATED

Stepladders and related methods of using and manufacturing stepladders are provided. In one embodiment, a stepladder is provided that comprises a top cap, a first assembly and a second assembly. The first assembly has a pair of spaced apart rails pivotally coupled with the top cap. The second assembly includes at least one rail pivotally coupled with the top cap. The first assembly and second assembly are configured to be displaced relative one another such that the stepladder is selectively positionable between a first, deployed state and a second, collapsed state. The first assembly, the second assembly and the top cap are cooperatively configured such that the at least one rail of the second assembly is at least partially nested within an envelope defined by the pair of spaced apart rails of the first assembly with the step ladder is in a collapsed state. 1. A stepladder comprising:a first assembly including a pair of spaced apart rails defining a first volume;a second assembly including a pair of spaced apart rails defining a second volume, the second assembly being pivotally positionable relative to the first assembly between a first, deployed state and a second, collapsed state, wherein a total volume of the stepladder when in the collapsed state is less than a sum of the first volume and the second volume; anda top cap, wherein the first assembly is directly pivotally coupled with the top cap and wherein the second assembly is directly pivotally coupled with the top cap.2. The stepladder of claim 1 , wherein the first assembly further includes a plurality of rungs coupled between the pair of spaced apart rails.3. The stepladder of claim 2 , wherein the first assembly is at least partially nested within the second volume defined by the second assembly when the ladder is in the collapsed state.4. The stepladder of claim 2 , wherein the second assembly is at least partially nested within the first volume defined by the first assembly when the ladder is in the ...

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Номер записи: 100