Elevator Virtual Aerodynamic Shroud

An elevator car () comprises: a cab () having a top, a bottom, a left side, a right side, a front, and a back, the front having a door (); and a frame () supporting the cab. The cab comprises a perimeter shroud () protruding above a surface of the top and leaving a well () exposing a central portion of an upper surface () of the top; the perimeter shroud protrudes above the upper surface; and the perimeter shroud has, in vertical section, curved portion. 2. The elevator car of wherein:the perimeter shroud extends at least 250° around the perimeter of the top.3. The elevator car of wherein:the perimeter shroud extends fully around the perimeter of the top.4. The elevator car of wherein:the perimeter shroud leaves a door exposed.5. The elevator car of wherein:the perimeter shroud covers a fan.6. The elevator car of wherein:the fan is positioned to drive an air flow through ports in the perimeter shroud.7. The elevator car of wherein:the perimeter shroud encloses a fuse or circuit breaker box.8. The elevator car of wherein:the perimeter shroud encloses electrical equipment.9. The elevator car of wherein:{'b': 28', '26', '27', '30, 'the frame comprises: a crosshead (), a pair of stiles (,), and a bolster ().'}10. The elevator car of wherein:the crosshead is spaced above the perimeter shroud by a gap of at least 0.5 m.11. The elevator car of wherein:the perimeter shroud has a depth of 0.2 m to 0.5 m.12. The elevator car of wherein:the perimeter shroud protrudes above the upper surface by 0.1 m to 0.4 m; andthe curved portion has a radius of curvature of 0.05 m to 0.60 m over an arc of at least 45°.13. The elevator car of wherein:the curved portion has a radius of curvature of 0.15 to 0.30 m over an arc of at least 80°.14. The elevator car of wherein:the curved portion has a said radius of curvature over a continuous said arc.15. The elevator car of further comprising:a toe guard depending from the elevator along at least one side; anda bottom perimeter shroud along at ...

Elevator load bearing assembly having a jacket with multiple polymer compositions

An elevator load bearing assembly ( 30 ) includes a jacket ( 34 ) having different portions comprising different polymer compositions. In a disclosed example, a plurality of tension members ( 32 ) are at least partially surrounded by a first portion ( 36 ) comprising a first polymer composition. A second portion ( 38 ) establishes at least one exterior surface ( 40 ) of the jacket ( 34 ) and comprises a second polymer composition. In one example, a surface-modifying agent is added to alter the composition of at least a portion of the jacket ( 34 ). In another example, co-extrusion techniques using different polymer compositions establish different portions of the jacket ( 34 ).

DEVICE AND METHOD FOR REPAIRING A ROTATABLE OBJECT

A device for repairing a rotatable object includes a controller that is selectively operable to send signals to a transducer. The transducer is selectively operable to cause movement of a sonotrode in response to the signals. The device is selectively operable in an ultrasonic welding mode and at least one of a deep rolling mode and an ultrasonic deep rolling mode. A method for repairing a rotatable object involves providing the device; positioning a repair substrate on at least a portion of a rotatable object contact surface of the rotatable object; operating the device in the ultrasonic welding mode to ultrasonically weld the repair substrate to the rotatable object contact surface; and operating the device in at least one of the deep rolling mode and the ultrasonic deep rolling mode to deep roll and/or ultrasonically deep roll the repair substrate to achieve a desired characteristic of the repair substrate. 1. A device for repairing a rotatable object , the device comprising:a controller that is selectively operable to send signals to a transducer, the transducer being selectively operable to cause movement of a sonotrode in response to signals received from the controller;wherein the device is selectively operable in an ultrasonic welding mode at least one of a deep rolling mode and an ultrasonic deep rolling mode.2. The device of claim 1 , wherein in the ultrasonic welding mode claim 1 , the transducer is selectively operable to cause the sonotrode to ultrasonically oscillate;wherein in the deep rolling mode, the transducer is selectively operable to cause the sonotrode to rotate; andwherein in the ultrasonic deep rolling mode, the transducer is selectively operable to cause the sonotrode to simultaneously rotate and ultrasonically oscillate.3. The device of claim 1 , wherein the rotatable object is selectively rotatable about a rotatable object axis claim 1 , and the rotatable object has a rotatable object contact surface; andwherein the sonotrode is ...

Conductive polymer compositions

A conductive polymer composition which exhibits PTC behavior comprises a crystalline organic polymer, carbon black, and a high resistivity particulate filler. The high resistivity filler is semiconductive and has a resistivity at least 100 times that of the carbon black. Compositions of the invention exhibit good resistance stability when exposed to thermal cycling. They are useful in electrical devices requiring compositions with high resistivity.

Method of making an ELEVATOR LOAD BEARING MEMBER HAVING A JACKET WITH AT LEAST ONE ROUGH EXTERIOR SURFACE

Elevator power system

A power system ( 10 ) operates a plurality of hoist motors ( 18 a, 18 b, 18 c ), each of which controls movement of one of a plurality of elevators ( 12 a, 12 b, 12 c ). The power system ( 10 ) includes a power bus ( 11 ) and a converter ( 22 ) connected across the power bus ( 11 ) for converting alternating current (AC) power from an AC power source ( 20 ) to direct current (DC) power and delivering the DC power to the power bus ( 11 ). The power system ( 10 ) also includes a plurality of inverters ( 26 a, 26 b, 26 c ) connected across the power bus ( 11 ). Each inverter ( 26 a, 26 b, 26 c ) is connected to a hoist motor ( 18 a, 18 b, 18 c ) and is operable to drive the hoist motor ( 18 a, 18 b, 18 c ) when the hoist motor ( 18 a, 18 b, 18 c ) is motoring by converting the DC power from the power bus ( 11 ) into AC power. Each inverter ( 26 a, 26 b, 26 c ) is further operable to convert AC power produced by the hoist motor ( 18 a, 18 b, 18 c ) when the motor is generating to DC power and to deliver the DC power to the power bus ( 11 ). A controller ( 31 ) manages power on the power bus ( 11 ) by controlling operation of the converter ( 22 ) and the inverters ( 26 a, 26 b, 26 c ) to drive a motoring hoist motor with power delivered to the power bus ( 11 ) by the converter ( 22 ) and generating hoist motors.

Electrical devices

Electrical devices, particularly circuit protection devices, contain conductive polymer elements whose edges are formed by breaking the conductive polymer element, along a desired path, without the introduction of any solid body into the element. The resulting cohesive failure of the conductive polymer produces a distinctive fractured surface. One method of preparing such devices involves etching fracture channels in the electrodes of a plaque containing a PTC conductive polymer element sandwiched between metal foil electrodes, and then snapping the plaque along the fracture channels to form individual devices. The figure illustrates a circuit protection device made in this way.

Safety elevator brake

(57)【要約】 【課題】 本発明の他の目的は、高摩擦係数かつ低摩耗 性を有し、高速及び荷重の多いエレベータへの使用のた めの信頼できるエレベータ安全制動装置を提供すること である。 【解決手段】 エレベータの安全制動装置は、基台と、 前記基台に設けれてエレベータ・ガイド・レールに接触 する摩擦面と、前記基台を備えたブレーキ・シュー２６ とを有しており、少なくとも摩擦面の一部は、おおよそ ９９．４重量％のモリブデンと、０．５重量％のチタン と、０．１重量％のジルコニウムから形成される合金か らなっている。前記安全制動装置は、エレベータかごを 停止させるために、ガイド・レールに向かって前記ブレ ーキ・シュー２６の摩擦材を押しつけるためのアクチュ エータに設置されている。

Elevator load bearing member having a jacket with at least one traction-enhancing exterior surface

An elevator load bearing member assembly (40') includes at least one traction enhancing surface (46') on a jacket (44'). In one example, a mechanical removal process is used to strip away at least some of an amide-rich layer from the surface (46') after the jacket (44') has been extruded onto tension members (42). In another example, a chemical removal process is used. Another disclosed example includes disrupting the surface.

Hydrodenitrification catalyst

A method for preparing hydrotreating catalysts containing Group VIII and/or Group VIB catalytically active metals on a support, and particularly those containing nickel and molybdenum, are improved in hydrodenitrification (HDN) activity by incorporating zero-valence molybdenum and/or tungsten carbonyls into the catalyst support by mixing a liquid mixture containing metal carbonyl(s); a catalytic amount of dienes, trienes or monoaromatics; and free sulfur; with a dried catalyst support and heating the liquid-solid mixture until metal carbonyl conversion to metal disulfide is substantially complete. The catalyst is then dried followed by calcining in inert gas, before use in a hydrotreating process.

Pulley for use in an elevator system

Una polea para uso en un sistema de ascensor, que comprende: un cuerpo de polea (22) que tiene un eje central (34) y una superficie guiadora de la correa (26) que incluye un perfil de superficie que se extiende en una dirección axial a lo largo de por lo menos una porción de la superficie guiadora de la correa (26) y que provee una superficie por lo menos parcialmente convexa a lo largo de la cual una correa (24) se monta sobre la polea, caracterizada porque el perfil de superficie se define como un polinomio de nº grado de una distancia desde un punto de referencia seleccionado (40) en la superficie guiadora de la correa (26), donde n es un número mayor que 2.

Elevator safety brake

(57)【要約】 【課題】 積載量の多い高速エレベータでの使用に適し たエレベータ安全制動機を提供する。 【解決手段】 エレベータかごを停止させるためのエレ バータ安全制動機１２では、エレベータガイドレール１ ６の面と接触して制動力を提供するブレーキシュー２５ の摩擦面に窒化ケイ素インサート３８が設けられてい る。窒化ケイ素インサート３８は、弾性材料からなる中 間部材４０を介して取り付けられており、この中間部材 ４０によって基部２６に対して弾性的に動作することが 可能となっている。窒化ケイ素材料を含む制動機の摩擦 面は、摩擦が一定して高く、かつ摩耗率が低いので、高 層ビルで運行される高速で積載量が多いエレベータに適 する。

Elevator load bearing assembly having a jacket with multiple polymer compositions

Elevator power system

Elevator load bearing member having a jacket with at least one traction-enhancing exterior surface

Elevator drive assembly including a capacitive energy storage device

An elevator drive assembly (20) includes a motor (28), drive (32) and a capacitive energy storage device (50). In a disclosed example, the capacitive energy storage device (50) comprises at least one nano-gate capacitor (52). The disclosed example has unique energy storage capabilities provided by the presence of the at least one nano-gate capacitor.

Energy storage flywheel device

The energy storage flywheel device (6) includes a plurality of annular shaped composite sections (8) and an annular shaped insert (10). The insert (10) has a specific radial strength substantially greater than the composite sections' specific radial strength. The composite sections (8) and the insert (10) are alternately stacked such that they have a common axis of rotation. They are bonded to each other such that shear stress is transferred between the composite section (8) and insert (10). In some applications, the flywheel (6) may comprise at least one annular shaped metal matrix composite section (8).

Fruit chiller

A chiller for fresh fruit and other perishable food products is cooled with a thermoelectric device and includes a cool air recirculating system that minimizes air flow path lengths and provides uniform cool air distribution throughout a fruit container removably supported above the thermoelectric module. The cooling air flow duct system is formed in part by the bottom wall of the container, thereby enhancing direct cooling air flow contact in minimizing the lengths of the flow paths.

Elevator system without a moving counterweight

An elevator system (20) includes a cab (22) supported for movement within a hoistway. A plurality of cab-supported sheaves (36, 42) moves with the cab through the hoistway. A first hoistway sheave (38) is located near a first end of the hoistway, and a second hoistway sheave (40) is located near a second end of the hoistway. A load bearing member (30) is provided, which (i) extends from near the first end of the hoistway toward the cab, where the load bearing member is redirected by one of the plurality of cab-supported sheaves toward the first end of the hoistway, (ii) at least partially wraps around each of the first hoistway sheave and the second hoistway sheave, and (iii) extends from near the second end of the hoistway toward the cab, where the load bearing member is redirected by another of the plurality of cab-supported sheaves toward the second end of the hoistway. A tension device (44) maintains tension in the load bearing member.

Elevator load bearing member having a jacket with at least one traction-enhancing exterior surface

An elevator load bearing member assembly includes at least one traction enhancing surface ( 46 ) on a jacket ( 44 ). In one example, a mechanical removal process is used to strip away at least some of an amide-rich layer from the surface ( 46 ) after the jacket has been extruded onto tension members ( 42 ). In another example, a chemical removal process is used. Another disclosed example includes disrupting the surface.

Fruit chiller

A chiller for fresh fruit and other perishable food products is cooled with a thermoelectric device and includes a cool air recirculating system that minimizes air flow path lengths and provides uniform cool air distribution throughout a fruit container removably supported above the thermoelectric module. The cooling air flow duct system is formed in part by the bottom wall of the container, thereby enhancing direct cooling air flow contact in minimizing the lengths of the flow paths.

Elevator power system

A power system (10) operates a plurality of hoist motors (18a, 18b, 18c), each of which controls movement of one of a plurality of elevators (12a, 12b, 12c). The power system (10) includes a power bus (11) and a converter (22) connected across the power bus (11) for converting alternating current (AC) power from an AC power source (20) to direct current (DC) power and delivering the DC power to the power bus (11). The power system (10) also includes a plurality of inverters (26a, 26b, 26c) connected across the power bus (11). Each inverter (26a, 26b, 26c) is connected to a hoist motor (18a, 18b, 18c) and is operable to drive the hoist motor (18a, 18b, 18c) when the hoist motor (18a, 18b, 18c) is motoring by converting the DC power from the power bus (11) into AC power. Each inverter (26a, 26b, 26c) is further operable to convert AC power produced by the hoist motor (18a, 18b, 18c) when the motor is generating to DC power and to deliver the DC power to the power bus (11) . A controller (31) manages power on the power bus (11) by controlling operation of the converter (22) and the inverters (26a, 26b, 26c) to drive a motoring hoist motor with power delivered to the power bus (11) by the converter (22) and generating hoist motors.

Device and method for repairing a rotatable object

A device for repairing a rotatable object includes a controller that is selectively operable to send signals to a transducer. The transducer is selectively operable to cause movement of a sonotrode in response to the signals. The device is selectively operable in an ultrasonic welding mode and at least one of a deep rolling mode and an ultrasonic deep rolling mode. A method for repairing a rotatable object involves providing the device; positioning a repair substrate on at least a portion of a rotatable object contact surface of the rotatable object; operating the device in the ultrasonic welding mode to ultrasonically weld the repair substrate to the rotatable object contact surface; and operating the device in at least one of the deep rolling mode and the ultrasonic deep rolling mode to deep roll and/or ultrasonically deep roll the repair substrate to achieve a desired characteristic of the repair substrate.

Kühler für obst

Lebensmittelkühler mit umschlossenem luftkanalsystem

Food chiller with enclosing air duct system

A fruit chiller includes a bowl-like fruit container and a removable cover, each of which has a two layer wall defining therebetween annular cooling air flow passages. Cool air is delivered from a lower base and, when the cover is on the container, cool air flows upwardly through the interconnected annular passages and into the container at the top of the cover. The air flows downwardly and exits the container at the bottom, thereby maximizing the distance between the cool air inlet and outlet to maximize the time the cool air remains within the container.

Refrigerador de alimentos provisto de un sistema de conductos de aire.

Un refrigerador (14) de alimentos, que comprende: una base (1) de soporte que incluye una pared interna (7) cóncava hacia el exterior y una porción base que define un interior abierto; el interior de la porción base está dividida por una placa (13) de la base generalmente plana en una cámara de aire refrigerante externo y una cámara de aire ambiental interno; un dispositivo termoeléctrico (12) de efecto Peltier montado en la placa (13) de la base y conectado térmicamente a un disipador (10) de frío en la cámara de aire refrigerante y a un disipador (11) de calor en la cámara de aire ambiental; un recipiente (2) encajado dentro de la pared interna (7) cóncava de la base (1), teniendo dicho recipiente (2) una pared externa (6) que incluye una primera porción de pared que define con dicha pared base interna (7) un primer conducto (8) anular semiesférico de aire y una segunda porción de pared que cubre dicha cámara de aire refrigerante; un borde periférico externo de dicha primera porción (6) de pared que define una primera ranura de transferencia de aire de dicho primer conducto (8) de aire, y teniendo la segunda porción de pared una abertura (5) de salida de aire a la cámara de aire refrigerante; una tapa (3) que encierra el recipiente (2) y soportada sobre un borde periférico de dicha pared base interna (7), teniendo dicha tapa (3) una capa externa (37) y una capa interna (38) que definen entre ellas un segundo conducto anular semiesférico (39) de aire que se extiende entre una segunda ranura de transferencia de aire en comunicación con dicha primera ranura de transferencia de aire y una abertura (4) de entrada de aire en la capa interna (38) de la tapa, de forma que el aire refrigerante rodea de manera uniforme sustancialmente la pared externa (6) completa del recipiente y la capa interna (38) de la tapa; formando la cámara de refrigeración y los conductos anulares primero y segundo (8, 39) un sistema de conductos de aire refrigerante; y, un ventilador (9) montado ...