Surface cleaning apparatus

A surface cleaning apparatus including: a housing supporting: a suction source including a motor with an axle having an axis (A) which rotates a fan; a dirt collection chamber having an elongate axis (B); and a battery for providing power to operate the suction source, wherein the battery has an elongate axis (C); wherein the axis (A) of the motor axle and the elongate axis (B) of the dirt collection chamber extend transversely with respect to the elongate axis (C) of the battery.

HIGH SENSITIVITY GEOPHONE

A geophone including a plurality of ferromagnetic masses (e.g., magnets) disposed to oscillate on one or more compliant elements (e.g., springs) in a manner that produces a steep flux gradient at one or more conductive coils is disclosed. The magnetic masses are positioned with like poles facing each other so as to compress the magnetic field gradient. The coils may be positioned in the flux gap either between the magnets, in close proximity to the magnets, or surrounding the magnets. Vibration measurements may then be detected from the movement of at least one of the magnetic masses.

Cyclonic separator device

A cyclonic separator device 18 for removing dust from dirt-laden air comprises first and second separating chambers 18c, 18d with corresponding dust collecting chambers 18b, 18e for separating coarse and fine dust from the dirt-laden air respectively. The second separating chamber 18d has a frusto-conical portion 50. The separating device 18 includes a shroud 100. The second dirt collection chamber 18e includes: a first portion 56 which surrounds an outer surface of the end part 52 of the frusto-conical portion 50 to define a space S1 therebetween; and a second portion 58 connected to the first portion 56, wherein the first portion 56 has a greater cross-sectional area than the second portion 58. Also disclosed is a cyclonic separator device wherein second collection chamber has a first portion surrounding the outer surface of the end part of the frusto-conical portion and extends into a cylindrical shroud. Additionally disclosed in a cyclonic separator device with particular restrictions ...

A surface cleaning apparatus

A surface cleaning apparatus comprises a housing supporting a suction source,a cyclonic separator device 18 having an elongate axis A which lies in a plane (Q1, fig 8),a user graspable handle (20, 21 fig 4) having an elongate axis (C, fig 5) and a passage member (19, fig 5) for transporting dirt-laden air to the dirt separation having an elongate axis (B, fig 3). The elongate axis (B, fig 3) of the passage member and the elongate axis (C, fig 5) of the user graspable handle lie in a plane (P1, fig 3), and the elongate axis A of the device intersects the plane (P1, fig 3). The cyclonic separator device 18 includes a first separating chamber 18c fluidly connected to the passage member for separating relatively coarse dust or debris from any dirt‑laden air received from the passage member, an inlet through which dirt-laden air is drawn into the first dirt separating chamber, a first dirt collection chamber 18b for receiving dirt separated by the first separating chamber, a shroud 100, an outlet ...

A surface cleaning apparatus

A cyclonic separator device for separating dirt from dirt-laden air comprises a first separating chamber 18c for separating relatively coarse dust or debris from dirt-laden air, an inlet 99a through which dirt-laden air is drawn into the first dirt separating chamber, a first dirt collection chamber 18b for receiving dirt separated by the first separating chamber, a shroud 100, an outlet through which cleaner air exits the first separating chamber and a baffle 62 positioned in the first dirt collection chamber which lies in a plane. The generally cylindrical portion of the first separating chamber has a height Hc and the baffle extends upwardly from the end wall of the first dirt collection chamber a height Bh, wherein the ratio (Hc:Bh) is defined by the range: 1.4:1 ≤ Hc:Bh ≤ 1.9:1. The diameter of the first dirt collection chamber is Dr and the radial extent of the baffle is Br and preferably Dr:Br is defined by the range 3:1≤ Dr:Br≤6:1.

A surface cleaning apparatus

Cyclonic separator device

A cyclonic separator device 18 for removing dust from dirt-laden air comprises first and second separating chambers 18c, 18d with corresponding dust collecting chambers 18b, 18e for separating coarse and fine dust from the dirt-laden air respectively. The second separating chamber 18d has a frusto-conical portion 50. The separating device 18 includes a shroud 100. The second dirt collection chamber 18e includes: a first portion 56 which surrounds an outer surface of the end part 52 of the frusto-conical portion 50 to define a space S1 therebetween; and a second portion 58 connected to the first portion 56, wherein the first portion 56 has a greater cross-sectional area than the second portion 58. Also disclosed is a cyclonic separator device wherein second collection chamber has a first portion surrounding the outer surface of the end part of the frusto-conical portion and extends into a cylindrical shroud. Additionally disclosed in a cyclonic separator device with particular restrictions ...

A tool for a surface cleaning apparatus

A surface cleaning apparatus

A surface cleaning apparatus for cleaning a surface comprising a housing (16, fig 4) supporting a suction source (13, fig 4), a dirt separation device (15, fig 4) for separating dirt from dirt-laden air, the dirt separation device including a dirt collection chamber 18 for receiving dirt from the dirt separation device, wherein the dirt collection chamber has an elongate axis (A, fig 3), a user graspable handle 20, 21 having an elongate axis (C, fig 3), a passage member 19 for transporting dirt-laden air to the dirt separation device, the passage member having an elongate axis (B, fig 3), a coupling device (22, fig 9) moveable between a first position in which detachment of the device from the housing is inhibited and a second position in which detachment of the device is permitted, an actuator member 24 for effecting movement of the coupling device (22, fig 9) between its first and second positions, wherein the elongate axis (B, fig 3) of the passage member 19 and the elongate axis (C, ...

A dirt separation device

A dirt separation device (15, figure 1) for a surface cleaning apparatus (10, figure 1) comprises: a separator for separating dirt from dirt-laden air; an inlet through which dirt-laden air is drawn into the separator; an outlet through which cleaner air exits the separator; a dirt collection chamber 18 for receiving separated dirt; a cover member 18a movable between a closed and open position; an actuator device 120 coupled to the cover member 18a for effecting movement of the cover member from the closed to open position, wherein the actuator device 120 is rotationally movable, or an engagement part operably connected to the actuator device 120 is rotationally movable, to effect movement of the closing member from the closed to open position. Also disclosed is the above dirt separation device where an engagement part is operable connected to the actuator device 120 , wherein, when operated, the engagement part moves along an arcuate path the effect the movement of the closing member 18a ...

Cellular telephone based surveillance system

The invention provides sensors and event monitoring to a cellular telephone to perform surveillance. Using audio and visual sensing capabilities, an environment can be monitored to detect significant surveillance events and to trigger surveillance alerts in response to the events, or to report current sensor information in response to an in-coming call.

A surface cleaning apparatus

Surface cleaning apparatus

SURFACE CLEANING APPARATUS

A surface cleaning apparatus including: a housing supporting: a suction source including a motor with an axle having an axis (A) which rotates a fan; a dirt collection chamber having an elongate axis (B); and a battery for providing power to operate the suction source, wherein the battery has an elongate axis (C); wherein the axis (A) of the motor axle and the elongate axis (B) of the dirt collection chamber extend transversely with respect to the elongate axis (C) of the battery.

A surface cleaning apparatus

A surface cleaning apparatus for cleaning a surface comprising a housing (16, fig 4) supporting a suction source (13, fig 4), a dirt separation device (15, fig 4) for separating dirt from dirt-laden air, the dirt separation device including a dirt collection chamber 18 for receiving dirt from the dirt separation device, wherein the dirt collection chamber has an elongate axis (A, fig 3), a user graspable handle 20, 21 having an elongate axis (C, fig 3), a passage member 19 for transporting dirt-laden air to the dirt separation device, the passage member having an elongate axis (B, fig 3), a coupling device (22, fig 9) moveable between a first position in which detachment of the device from the housing is inhibited and a second position in which detachment of the device is permitted, an actuator member 24 for effecting movement of the coupling device (22, fig 9) between its first and second positions, wherein the elongate axis (B, fig 3) of the passage member 19 and the elongate axis (C, fig 3) of the user graspable handle 21, 22 lie in a plane (P1, fig 3), and the elongate axis (A, fig 3) of the dirt collection chamber 18 intersects the plane (P1, fig 3) of the elongate axis of the handle and the passage member. Various other arrangements are also claimed.

Dual-suspension system for MEMS-based devices

A dual-suspension system for MEMS-based devices includes a proof mass, an upper spring system, and a lower spring system. The proof mass is formed from a handle wafer, a first layer of silicon coupled to one side of the handle wafer, and a second layer of silicon coupled to the other side of the handle wafer. The upper spring system is formed from the first layer of silicon and the lower spring system is formed from the second layer of silicon. The upper and lower spring systems comprise one or more springs extending from the proof mass. The springs may be spaced at even intervals along the perimeter of the proof mass, may be symmetric or out of phase with each other, may comprise different geometries, and may be curved in shape. The upper and lower spring systems are coupled to a support structure that surrounds the proof mass.

Surveillance system including non-audible sound emitting event detectors

A surveillance system includes an event detector mounted in an environment, and an ultrasound generator coupled to the event detector. The ultrasound generator emits an ultrasound signal in response to the event detector detecting an event in the environment. A camera acquires a visual signal of the environment, and a microphone acquires the ultrasound signal, both of which are recorded on a storage media for subsequent searching and indexing. An event detector/ultrasound generator pair, can be purely mechanical or a battery operated electronic circuit.

Apparatus for cleaning a floor surface

A floor tool for an apparatus for cleaning a floor surface, said apparatus including a source of suction, the floor tool comprising a base assembly including a base part 18 having a first passage 42 with a respective inlet 44 and a second passage 46 with a respective inlet 48, a device (62, fig 3) for effecting movement of the base part 18 between respective first and second conditions and wherein the first and second inlets 44, 48 are positioned in respective planes (A, B, fig 9). The first and second conditions can relate to the height of the base part 18 and thus the first and second inlets 44, 48 with respect to the floor surface. Preferably when the base part 18 is in its first condition the inlet 44 of the first passage 42 is positioned closer to the floor surface than it is positioned when the base part 18 is in the second position. Similarly when the base part 18 is in its second condition the inlet 48 of the second passage 46 is positioned closer to the floor surface that it is positioned when the base part 18 is in its first condition.

A dirt separation device

A dirt separation device (15, figure 1) for a surface cleaning apparatus (10, figure 1) comprises: a separator for separating dirt from dirt-laden air; an inlet through which dirt-laden air is drawn into the separator; an outlet through which cleaner air exits the separator; a dirt collection chamber 18 for receiving separated dirt; a cover member 18a movable between a closed and open position; an actuator device 120 coupled to the cover member 18a for effecting movement of the cover member from the closed to open position, wherein the actuator device 120 is rotationally movable, or an engagement part operably connected to the actuator device 120 is rotationally movable, to effect movement of the closing member from the closed to open position. Also disclosed is the above dirt separation device where an engagement part is operable connected to the actuator device 120 , wherein, when operated, the engagement part moves along an arcuate path the effect the movement of the closing member 18a ...

A surface cleaning apparatus

A surface cleaning apparatus comprises a housing supporting a suction source, a cyclonic separator device 18 having an elongate axis A which lies in a plane (Q1, fig 8), a user graspable handle (20, 21 fig 4) having an elongate axis (C, fig 5) and a passage member (19, fig 5) for transporting dirt-laden air to the dirt separation having an elongate axis (B, fig 3). The elongate axis (B, fig 3) of the passage member and the elongate axis (C, fig 5) of the user graspable handle lie in a plane (P1, fig 3), and the elongate axis A of the device intersects the plane (P1, fig 3). The cyclonic separator device 18 includes a first separating chamber 18c fluidly connected to the passage member for separating relatively coarse dust or debris from any dirt laden air received from the passage member, an inlet through which dirt-laden air is drawn into the first dirt separating chamber, a first dirt collection chamber 18b for receiving dirt separated by the first separating chamber, a shroud 100, an ...

APPARATUS FOR CLEANING A FLOOR SURFACE

A floor tool for an apparatus having a source of suction for cleaning a floor surface, the floor tool includes a base assembly including a base part having a first passage with a respective inlet, and a second passage with a respective inlet. A device for effecting movement of the base part is between respective first and second conditions, and the first and second inlets are positioned in respective planes. 1. A floor tool for an apparatus for cleaning a floor surface , said apparatus including a source of suction , the floor tool including: a first passage with a respective inlet; and', 'a second passage with a respective inlet;, 'a base assembly including a base part having 'wherein the first and second inlets are positioned in respective planes.', 'a device for effecting movement of the base part between respective first and second conditions;'}2. A floor tool according to wherein the respective planes are spaced from each other.3. A floor tool according to wherein the respective planes are spaced from each other in a generally vertical direction away from the floor surface.4. A floor tool according to wherein the respective planes are angularly spaced from each other.5. A floor tool according to wherein the respective plane of the first inlet is inclined at an angle β with respect to the respective plane in which the second inlet is positioned.6. A floor tool according to wherein β is between 4 to 8° and preferably β is 6° about 6°.7. A floor tool according to wherein the planes are intersecting planes.8. A floor tool according to wherein the base part is pivotally moveable.9. A floor tool according to wherein the base part is pivotally moveable through an angle θ claim 8 , and preferably an angle of inclination between the respective planes is substantially equal to or equal to θ.10. A floor tool according to wherein the base part includes a ground engaging portion about which the base part is pivotally moveable as it moves between its first and second ...

SURFACE CLEANING APPARATUS

A surface cleaning apparatus includes a housing that supports a motor which rotates a fan about an axle axis and a dirt collection chamber having an elongate axis about which the dirt-laden air rotates. The dirt collection chamber receives dirt-laden air from the passage in response to rotation of the fan. The dirt collection chamber axis is spaced from the axle axis and includes an openable door that permits a user to empty dirt from the dirt collection chamber while the dirt collection chamber is supported on the housing. A battery that operates the suction source includes a plurality of battery cells, has an elongate battery axis that extends through a majority of the battery cells. While the passage axis extends horizontally, both the axle axis and the dirt collection chamber axis are positioned above the elongate axis and the battery axis is positioned below the passage axis.

APPARATUS FOR CLEANING A FLOOR SURFACE

An apparatus for cleaning a floor surface including an upright part having a user graspable handle; a base assembly is connected to the upright part and includes a base part having a first passage with a respective inlet; and a second passage with a respective inlet. The apparatus includes a device for effecting movement of the base part between respective first and second conditions, and a suction source for providing suction to one or both of the first and second passages. As the base part is moved between its first and second conditions by the device, the suction provided to one or both of the first and second passages is changed. 1. An apparatus for cleaning a floor surface including:an upright part including a user graspable handle; a first passage with a respective inlet; and', 'a second passage with a respective inlet;, 'a base assembly, connected to the upright part, including a base part havinga device for effecting movement of the base part between respective first and second conditions;a suction source for providing suction to one or both of the first and second passages;wherein as the base part is moved between its first and second conditions by the device, the suction provided to one or both of the first and second passages is changed.2. An apparatus according to wherein the suction provided to the first passage is increased or decreased.3. An apparatus according to wherein the suction provided to the second passage is increased or decreased.4. An apparatus according to wherein when the suction provided to the first passage is increased or decreased claim 2 , the suction provided to the second passage is the other of increased or decreased.5. An apparatus according to wherein when the suction provided to the second passage is increased or decreased claim 2 , the suction provided to the second passage is the other of increased or decreased.6. An apparatus according to wherein when the base part is in its first condition the inlet of the first passage is ...

Automatic indicator system and method

An automatic indicator system directs a light beam at an object. A camera configured to acquire an image of an object is coupled to a light beam indicator. The image is compared with representations of objects stored in a database. A matching representation is identified and the light beam is directed at the object based on information associated with the matching representation.

High sensitivity geophone

A geophone including a plurality of ferromagnetic masses (e.g., magnets) disposed to oscillate on one or more compliant elements (e.g., springs) in a manner that produces a steep flux gradient at one or more conductive coils is disclosed. The magnetic masses are positioned with like poles facing each other so as to compress the magnetic field gradient. The coils may be positioned in the flux gap either between the magnets, in close proximity to the magnets, or surrounding the magnets. Vibration measurements may then be detected from the movement of at least one of the magnetic masses.

Acoustic panel

The disclosure is directed to an acoustic panel. The acoustic panel comprises a body coupled to a first member and a second member and between a first end cap and a second end cap. The body is configured to reflect sound. The acoustic panel further comprises an aperture disposed in the first member and the second member, and a bracket coupled to the aperture. The aperture and the bracket are configured to receive and retain a pole coupled to a batten of a line set. The acoustic panel is rotatably coupled to the pole.

TIME DOMAIN SWITCHED ANALOG-TO-DIGITAL CONVERTER APPARATUS AND METHODS

A time domain switching analog-to-digital converter apparatus and methods of utilizing the same. In one implementation, the converter apparatus comprises a carrier signal source, and at least one reference source. The carrier signal is summed with the input signal and the summed modulated signal is fed to a comparator circuit. The comparator is configured detects crossings of the reference level by the modulated waveform thereby generating trigger events. The time period between consecutive trigger events is used to obtain modulated signal deviation due to the input signal thus enabling input signal measurement. Control of the carrier oscillation amplitude and frequency enables real time adjustment of the converter dynamic range and resolution. The use of additional reference signal levels increases sensor frequency response and accuracy. A dual channel converter apparatus enables estimation and removal of common mode noise, thereby improving signal conversion accuracy. 1. An analog to digital converter apparatus comprising:a first interface configured to receive an input signal and a carrier signal; and identify one or more reference levels;', 'generate a modulated signal based on said input signal and said carrier signal;', 'detect crossings of said one or more reference levels by said modulated signal;', 'based on said detected crossings, determine a plurality of timing periods; and', 'based at least in part on said plurality of timing periods, generate one or more estimates of said input signal., 'logic in signal communication with the first interface and configured to2. The converter apparatus of claim 1 , wherein said converter apparatus further comprises a dynamically adjustable dynamic measurement range.3. The converter apparatus of claim 2 , wherein adjustment of said dynamically adjustable dynamic measurement range is achieved using at least an amplitude of said carrier signal.4. The converter apparatus of claim 3 , wherein said adjustment is selected ...

CYCLONIC SEPARATOR DEVICE

A cyclonic separator device for removing dust or debris from dirt-laden air includes a first separating chamber, a first dirt collection chamber in communication with the first separating chamber, a shroud, a second separating chamber positioned generally within the shroud, and a second dirt collection chamber in communication with the second separating chamber. The second separating chamber includes a generally frusto-conical portion that has an end part in communication with the second dirt collection chamber through which fine dust or debris exits therethrough into the second dirt collection chamber. A first portion of the second dirt collection chamber surrounds an outer surface of the end part of the generally frusto-conical portion to define a space S therebetween and said first portion of the second dirt collection chamber extends into a space S defined by the inner surface of the generally cylindrical portion of the shroud having said openings therein. 1. A cyclonic separator device for removing dust or debris from dirt-laden air , the device comprising:a first separating chamber for separating relatively coarse dust or debris from the dirt-laden air;an inlet through which dirt-laden air is drawn into the first separating chamber;a first dirt collection chamber in communication with the first separating chamber;a shroud;a second separating chamber positioned generally within the shroud for separating relatively fine dust or debris from the dirt-laden air cleaned by the first separating chamber,a second dirt collection chamber in communication with the second separating chamber;an outlet through which cleaner air exits the second separating chamber;wherein the first separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the first separating chamber,wherein ...

Self-correcting rear projection television

In a rear projection television, cathode ray tubes are mounted inside an enclosure so that each cathode ray tube projects output images onto a rear projection screen using a corresponding electron beam. Calibration images are generated for each cathode ray tube. A camera, also mounted inside the enclosure, acquires an input image of each calibration image. A distortion in each input image is measured, and the output images of the cathode ray tubes are corrected by adjusting the signals controlling the corresponding electron beams according to the distortion.

Method for electrically connecting dual silicon-on-insulator device layers

A method includes providing a handle wafer having first and second sides. A first oxide layer covers the first side, a second oxide layer covers the second side, a first silicon layer covers the first oxide layer, and a second silicon layer covers the second oxide layer. A portion of the first silicon layer and the first oxide layer is etched to create an exposed portion of the first side. A portion of the second silicon layer and the second oxide layer is etched to create an exposed portion of the second side. A first conductive layer is deposited on the exposed portion of the first side such that it contacts the handle wafer, first oxide layer, and first silicon layer. A second conductive layer is deposited on the exposed portion of the second side such that it contacts the handle wafer, second oxide layer, and second silicon layer.

Cyclonic separator device

A cyclonic separator device for removing dust or debris from dirt-laden air includes a first separating chamber, a first dirt collection chamber in communication with the first separating chamber, a shroud, a second separating chamber positioned generally within the shroud, and a second dirt collection chamber in communication with the second separating chamber. The second separating chamber includes a generally frusto-conical portion that has an end part in communication with the second dirt collection chamber through which fine dust or debris exits therethrough into the second dirt collection chamber. A first portion of the second dirt collection chamber surrounds an outer surface of the end part of the generally frusto-conical portion to define a space S1 therebetween and said first portion of the second dirt collection chamber extends into a space S2 defined by the inner surface of the generally cylindrical portion of the shroud having said openings therein.

Electro-magnetic kinetic energy harvesting device using increased magnetic edge area

An energy harvesting apparatus comprising: a substrate; two magnets coupled to the substrate in close proximity to each other with like magnetic poles facing each other creating a flux gap; a coil coupled to the substrate and disposed within the flux gap, wherein the coil and the magnets are coupled to the substrate such that substrate acceleration causes relative motion between the magnets and the coil thereby exposing the coil to a changing magnetic flux.

Scanning spectroscopy modulation for frequency domain spectral analysis

A method for analyzing an optical signal comprising: directing the optical signal into a scanning spectrometer system comprising a variable-wavelength filter and a detector; continuously modulating the variable-wavelength filter at a given modulation frequency to produce a time-based waveform; measuring the time-based waveform with the detector; converting the time-based waveform into a frequency spectrum comprising harmonics of the modulation frequency; and comparing the harmonics of the modulation frequency to premeasured harmonic spectra in a reference database.

Identifying faces from multiple images acquired from widely separated viewpoints

A method improves facial recognition using pairs of images acquired simultaneously of substantially different portions of faces. By using such pairs, the 3D pose and actual size of the faces can be determined, which enables better normalization and comparison with similar image pairs of identified faces stored in a database.

High-contrast front projector and screen

A high contrast front projection system includes a reflective screen configured to reflect light in a plurality of narrow-band frequencies, and a projector configured to emit light substantially in the narrow-band frequencies. The narrow-band frequencies are centered on red, green, and blue colors such that the reflective screen reflects about 90% of light at the plurality of narrow-band frequencies, and less than 10% of light at other frequencies.

Tunable resonant frequency kinetic energy harvester

An energy harvester comprising: a substrate; two magnets coupled to the substrate in close proximity to each other with like magnetic poles facing each other creating a flux gap; a coil coupled to the substrate and disposed within the flux gap, wherein the coil and the magnets are coupled to the substrate such that substrate acceleration causes relative elastic motion between the magnets and the coil thereby exposing the coil to a changing magnetic flux; and a resonant frequency tuner coupled to the substrate and configured to adjust the resonant frequency between the coil and the magnets.

Trailer to camper converter

DIRT SEPARATION DEVICE

A surface cleaning apparatus includes a housing that supports a suction source, a dirt separation device that has an elongate axis, and a user graspable handle having an elongate axis. A passage member transports dirt-laden air to the dirt separation device. The passage member has an elongate axis. The elongate axis of the passage member and the elongate axis of the user graspable handle lie in a plane. The elongate axis of the dirt collection chamber intersects the plane. During operation, while the housing is supported on a floor surface, the elongate axis of the dirt separation device is parallel with the floor surface. 1. A surface cleaning apparatus including a suction source;', 'a dirt separation device having an elongate axis (A);', 'a user graspable handle having an elongate axis (C),, 'a housing supportinga passage member for transporting dirt-laden air to the dirt separation device, the passage member having an elongate axis (B);{'b': 1', '1, 'wherein the elongate axis (B) of the passage member and the elongate axis (C) of the user graspable handle lie in a plane (P), and the elongate axis (A) of the dirt collection chamber intersects the plane (P).'}2. A surface cleaning apparatus including: a suction source;', 'a dirt separation device having an elongate axis (A) and wherein, in normal use, the housing is supported on a floor surface and the elongate axis (A) of the dirt separation device is parallel with the floor surface., 'a housing supporting3. A surface cleaning apparatus according to including:a surface cleaning tool;an elongate member having an elongate axis, said elongate member connecting the surface cleaning tool to the housing and including a passage for carrying dirt-laden air from the surface cleaning tool to the dirt collection chamber.4. A surface cleaning apparatus according to wherein the apparatus is a handheld cleaner.5. A surface cleaning apparatus according to wherein the apparatus is a cylinder cleaner. The present application is a ...

Invisible beam pointer system

An invisible beam pointer system is provided with one or more input images. A beam of invisible electro-magnetic radiation is activated and directed at a desired location of a display surface, while a sensor acquires a location of the beam on the display surface. Pixels in the input image, corresponding to the location, are then modified or annotated, to produce an output image that is projected on the display surface.

APPARATUS FOR CLEANING A FLOOR SURFACE

An apparatus for cleaning a floor surface including an upright part having a user graspable handle and a base assembly including a first base part connected to the upright part and a second base part connected to the first base part. The second base part includes a cleaning member. The apparatus further includes a device for effecting movement of the first and second base parts relative to each other. The device effects movement of the second base part between respective first and second conditions and the second base part has a first passage with a respective inlet and a second passage with a respective inlet. When the second base part is in its second condition the inlet of the second passage is positioned closer to a floor surface than it is positioned when the second base part is in its first condition. 1. An apparatus for cleaning a floor surface comprising:an upright part including a user graspable handle; a first base part connected to the upright part; and', 'a second base part connected to the first base part, which second base part includes a cleaning member; and, 'a base assembly includinga device for effecting movement of the first and second base parts relative to each other, wherein the device effects movement of the second base part between respective first and second conditions and wherein the second base part has a first passage with a respective inlet and a second passage with a respective inlet, and wherein when the second base part is in its second condition the inlet of the second passage is positioned closer to a floor surface than it is positioned when the second base part is in its first condition.2. (canceled)3. An apparatus according to wherein when the second base part is in its second condition the cleaning member is positioned closer to a floor surface than it is when the second base part is in its first condition.4. An apparatus according to wherein the second base part includes a leading edge which is positioned remote from its ...

Surface cleaning apparatus

A surface cleaning apparatus including: a housing supporting: a suction source including a motor with an axle having an axis (A) which rotates a fan; a dirt collection chamber having an elongate axis (B); and a battery for providing power to operate the suction source, wherein the battery has an elongate axis (C); wherein the axis (A) of the motor axle and the elongate axis (B) of the dirt collection chamber extend transversely with respect to the elongate axis (C) of the battery.

BREATHABLE PLAYMAT

An integrated padded mesh material may be used in pillows or pillowcases for improved air flow around a user of the pillow or pillowcase during rest. When used in a pillow, the material may substantially cover the side of the pillow that a user's head rests upon. Other materials, such as mesh and satin materials, may be used to complete construction of the pillow. The pillow may take on familiar shapes, such as a dog. When the integrated padded mesh material is used in a pillowcase the pillowcase may be wrapped around a conventional pillow to increase air flow during rest. The pillowcase may include several layers such as the integrated padded mesh material and an allergy-blocking fabric. 1. An apparatus , comprising:a playmat,in which at least a portion of the playmat comprises breathable integrated padded mesh material.2. The apparatus of claim 1 , in which the playmat comprises at least two layers.3. The apparatus of claim 2 , in which the playmat comprises:a first layer comprising a lightweight liner fabric;a second layer comprising a breathable integrated padded mesh material; anda third layer comprising an allergy-blocking fabric.4. The apparatus of claim 3 , in which the second layer has a thickness of at least approximately one-half of an inch.5. The apparatus of claim 2 , in which the at least two layers are coupled together by sewing at the seams.6. The apparatus of claim 1 , in which the breathable integrated padded mesh material has a suffocation resistance level of less than about 15 cm HO as determined by RAM Consulting Virtual Child Suffocation Hazard Assessment Model.7. The apparatus of claim 1 , in which the breathable integrated padded mesh material comprises a first surface of the playmat and the playmat further comprises a second surface claim 1 , the second surface opposite the first surface and facing a floor.8. The apparatus of claim 7 , in which the second surface comprises a water-proof fabric.9. The apparatus of claim 1 , in which the ...

Breathable blanket

A breathable blanket may be made from a breathable mesh material to improve airflow through the blanket. The breathable blanket may include a multi-layer material having a combination of light-weight liner fabric and a mesh fabric. The blanket may be have a shape similar to an animal and include attachments, such as a stuff polyfill head. Additionally, the blanket may include ornamental additions of satin to further convey the animal shape.

BREATHABLE PILLOW

An integrated padded mesh material may be used in pillows or pillowcases for improved air flow around a user of the pillow or pillowcase during rest. When used in a pillow, the material may substantially cover the side of the pillow that a user's head rests upon. Other materials, such as mesh and satin materials, may be used to complete construction of the pillow. The pillow may take on familiar shapes, such as a dog. When the integrated padded mesh material is used in a pillowcase the pillowcase may be wrapped around a conventional pillow to increase air flow during rest. The pillowcase may include several layers such as the integrated padded mesh material and an allergy-blocking fabric. 1. An apparatus for use with a pillow , comprising:a case for enclosing the pillow,in which at least a portion of the case comprises breathable integrated padded mesh material.2. The apparatus of claim 1 , in which the case comprises three layers.3. The apparatus of claim 2 , in which the case comprises:a first layer comprising a lightweight liner fabric;a second layer comprising a breathable integrated padded mesh material; anda third layer comprising an allergy-blocking fabric.4. The apparatus of claim 3 , in which the second layer has a thickness of at least approximately two millimeters.5. The apparatus of claim 1 , in which the breathable integrated padded mesh material has a suffocation resistance level of less than about 15 cm HO as determined by RAM Consulting Virtual Child Suffocation Hazard Assessment Model.6. The apparatus of claim 1 , in which the at least two layers are coupled together by sewing at the seams.7. The apparatus of claim 1 , in which the pillow is at least one of a support pillow claim 1 , a wedge claim 1 , a sleep positioner claim 1 , and a headrest.8. The apparatus of claim 1 , in which the apparatus is a toddler pillowcase having a size of approximately 12 inches by approximately 18 inches.9. The apparatus of claim 1 , in which the apparatus is a kids ...

Crib shield system and other breathable apparatus

An apparatus and method for making same utilizing a breathable mesh material having a reduced suffocation resistance level for infant and toddler use. The breathable mesh material includes an inner and outer fabric that includes larger openings on the front substructure than on the back substructure and a pile substructure is integrated and extends between the front and back substructures allowing air to substantially move effectively therethrough.

CRIB SHIELD SYSTEM AND OTHER BREATHABLE APPARATUS

An apparatus and method for making same utilizing a breathable mesh material having a reduced suffocation resistance level for infant and toddler use. The breathable mesh material includes an inner and outer fabric that includes larger openings on the front substructure than on the back substructure and a pile substructure is integrated and extends between the front and back substructures allowing air to substantially move effectively therethrough. 1. A baby carrier apparatus comprising:a body portion defining a volume to receive a child within the defined volume, wherein a majority of the body portion is formed of a breathable integrated padded mesh material, the breathable integrated padded mesh material being positioned such that it is next to the child's face when the child is received in the defined volume; andan attachment mechanism to attach the body portion to a person that will carry the child received in the defined volume.2. The apparatus of claim 1 , wherein a substantial portion of the body portion is formed of the breathable integrated padded mesh material.3. The apparatus of claim 1 , wherein the breathable integrated padded mesh material comprises a front substructure claim 1 , a back substructure claim 1 , and a pile of substructure integrated with and extending between the front and back substructures claim 1 , wherein each of the substructures allows air to substantially move effectively therethrough.4. The apparatus of claim 3 , wherein the body portion further comprises at least one layer of material adjacent to at least one of the front substructure or the back substructure of the breathable integrated padded mesh material.5. The apparatus of claim 4 , wherein at least one layer of material adjacent to the front substructure or the back substructure of the breathable integrated padded mesh material comprises at least one of a padding material and a breathable material.6. The apparatus of claim 1 , wherein the breathable integrated padded mesh ...

CRIB SHIELD SYSTEM AND OTHER BREATHABLE APPARATUS

An apparatus and method for making same utilizing a breathable mesh material having a reduced suffocation resistance level for infant and toddler use. The breathable mesh material includes an inner and outer fabric that includes larger openings on the front substructure than on the back substructure and a pile substructure is integrated and extends between the front and back substructures allowing air to substantially move effectively therethrough. 1. A baby carrier apparatus comprising:a body portion defining a volume to receive a child within the defined volume, wherein a majority of the body portion is formed of a breathable integrated padded mesh material, the breathable integrated padded mesh material being positioned such that it is next to the child's face when the child is received in the defined volume; andan attachment mechanism to attach the body portion to a person that will carry the child received in the defined volume.2. The apparatus of claim 1 , wherein a substantial portion of the body portion is formed of the breathable integrated padded mesh material.3. The apparatus of claim 1 , wherein the breathable integrated padded mesh material comprises a front substructure claim 1 , a back substructure claim 1 , and a pile of substructure integrated with and extending between the front and back substructures claim 1 , wherein each of the substructures allows air to substantially move effectively therethrough.4. The apparatus of claim 3 , wherein the body portion further comprises at least one layer of material adjacent to at least one of the front substructure or the back substructure of the breathable integrated padded mesh material.5. The apparatus of claim 4 , wherein at least one layer of material adjacent to the front substructure or the back substructure of the breathable integrated padded mesh material comprises at least one of a padding material and a breathable material.6. The apparatus of claim 1 , wherein the breathable integrated padded mesh ...

System, Apparatus and Method for Decentralizing Attribute-Based Encryption Information

A method for secure transmission of a message encrypted under an attribute based encryption scheme is provided. A first and a second authority parameter may be received from one or more authorities. A policy is generated based on the parameters. The generated policy comprises a flexible access control structure. A ciphertext is constructed based on the policy. To decrypt the ciphertext, key components are received from one or more authorities, the key components associated with a decryptor identifier. A decryption key is generated based on the policy and the key components. A plaintext is generated by decrypting the ciphertext. 1. A method comprising:receiving a first authority parameter from a first authority;receiving a second authority parameter from a second authority;generating a policy based on the first authority parameter and the second authority parameter, wherein the policy comprises a flexible access control structure; andconstructing a ciphertext based on the policy.2. The method of claim 1 , wherein the first authority does not communicate with the second authority.3. The method of claim 1 , wherein the first authority parameter is distinct from the second authority parameter.4. The method of claim 1 , wherein the flexible access control structure comprises an operator selected from the group of operators: a greater-than threshold operator claim 1 , a less-than threshold operator claim 1 , and an equality operator.5. The method of claim 1 , wherein the flexible access control structure comprises a boolean formula over the authority parameters.6. The method of claim 3 , wherein the flexible access control structure comprises at least one threshold operator between distinct authority parameters claim 3 , and at least one AND operator between distinct authority parameters.7. The method of claim 3 , wherein the flexible access control structure comprises at least one OR operator between distinct authority parameters claim 3 , and at least one AND operator ...

Apparatus and Methods for Time Domain Measurement of Oscillation Perturbations

An oscillatory apparatus and methods of utilizing the same. In one embodiment, the apparatus comprises a force sensor having a proof mass, with one or more sensing electron tunneling electrodes disposed thereon, and a frame comprising one or more reference electron tunneling electrodes. Conductive plates disposed on the sensor base and capping wafers induce oscillations of the proof mass. The sensing and the reference electrode pairs are disposed in a face-to-face configuration, thus forming a digital switch characterized by one or more closed states. In the closed state, the switch generates triggering events, thereby enabling the sensing apparatus to generate a digital output indicative of the mass position. The time period between consecutive trigger events is used to obtain mass deflection due to external forcing. Time separation between the triggering events is based on the physical dimensions established during fabrication, thus not requiring ongoing sensor calibration. 1. A time-domain force sensing apparatus , comprising: a proof mass comprising a plurality of sides;', 'at least one position-sensing electrode disposed on the proof mass; and', 'at ground element disposed on a first side of the plurality of sides of the proof mass, and coupled to a ground plane;, 'a first structure comprising at least one position defining electrode; and', 'a first capacitive plate disposed along a first side of the second structure;, 'a second structure comprisinga driving circuit electrically coupled to the first capacitive plate and the ground plane, and configured to induce oscillatory motion of the proof mass relative to the at least one position-defining electrode at a first frequency; anda sensing circuit coupled to the at least one position-defining electrode and to the at least one position-sensing electrode, the sensing circuit configured to output a signal indicative of at least one predetermined spatial configuration between the at least one position defining ...

Auto-Ranging for Time Domain Inertial Sensor

A method for adjusting the accuracy of a time-domain inertial sensor comprising the following steps: operatively positioning a harmonic oscillator of the time-domain inertial sensor between two capacitive plates; initiating harmonic oscillation of the oscillator in a first plane by creating with the capacitive plates a capacitively forced pulse; monitoring the harmonic oscillation of the oscillator; and electrostatically biasing both of the two capacitive plates such that a spring constant of the oscillator is effectively altered. 1. A method for adjusting the accuracy and dynamic range of a time-domain inertial sensor comprising the following steps:operatively positioning a harmonic oscillator of the time-domain inertial sensor between two capacitive plates;initiating harmonic oscillation of the oscillator in a first plane by creating with the capacitive plates a capacitively forced pulse;monitoring the harmonic oscillation of the oscillator; andelectrostatically biasing both of the two capacitive plates such that a spring constant of the oscillator is effectively altered.2. The method of further comprising the step of setting a resonant frequency of the oscillator to a desired frequency by using feedback.3. The method of further comprising altering the bias of the capacitive plates based on an applied acceleration that the time-domain inertial sensor is experiencing by adjusting the effective resonant frequency of the oscillator such that the performance of the time-domain inertial sensor is tailored to the range of measured acceleration.4. The method of claim 3 , wherein the oscillator is a proof mass coupled to a frame via a cantilever spring.5. The method of claim 4 , wherein the time-domain inertial sensor comprises a plurality of electron tunneling electrodes positioned on the oscillator and the frame such that a tunneling current pulse is generated when a free end of the oscillator is at a zero force position with respect to the frame and when the free end ...

Oscillation Apparatus with Atomic-Layer Proximity Switch

An oscillation apparatus comprising: a frame; a first proof mass coupled to the frame via a spring; a driving circuit operatively coupled to the first proof mass and the frame, wherein the driving circuit is configured to induce oscillatory motion of the first proof mass relative to the frame at a resonant frequency in a first direction; a first electron-tunneling position switch operatively coupled to the first proof mass such that the first position switch is configured to pass through a closed state during each oscillation of the proof mass, wherein the position switch comprises first and second single-atom-thick tunneling electrodes; and a sensing circuit coupled to the position switch, the sensing circuit configured to output a signal whenever the position switch passes through the closed state. 1. An oscillation apparatus comprising:a frame;a first proof mass coupled to the frame via a spring;a driving circuit operatively coupled to the first proof mass and the frame, wherein the driving circuit is configured to induce oscillatory motion of the first proof mass relative to the frame at a resonant frequency in a first direction;a first proximity position switch operatively coupled to the first proof mass such that the first position switch is configured to pass through a closed state during each oscillation of the proof mass, wherein the position switch comprises first and second single-atom-thick electrodes; anda sensing circuit coupled to the position switch, the sensing circuit configured to output a signal whenever the position switch passes through the closed state.2. The oscillation apparatus of claim 1 , wherein the first and second electrodes are comprised of graphene.3. The oscillation apparatus of claim 2 , further comprising a second proof mass mounted to the frame such that when the first proof mass oscillates there is relative motion between the first and second proof masses claim 2 , wherein the second proof mass has substantially the same ...

Time Domain Switched Gyroscope

A gyroscope comprising: a support structure; a drive mass springedly coupled to the support structure such that movement of the drive mass with respect to the support structure is substantially restricted to movement in a first direction; a driver configured to cause the drive mass to oscillate with respect to the support structure in the first direction; a sense mass springedly coupled to the drive mass such that movement of the sense mass with respect to the drive mass is substantially restricted to movement in a second direction, which is orthogonal to the first direction; and a digital trigger comprising a proximity switch coupled between the drive mass and the sense mass, wherein the switch is configured to switch from an open state to a closed state each time the sense mass is in a reference position with respect to the drive mass. 1. A gyroscope comprising:a rigid support structure;a drive mass springedly coupled to the support structure such that movement of the drive mass with respect to the support structure is substantially restricted to movement in a first direction;a drive mass driver configured to cause the drive mass to oscillate with respect to the support structure in the first direction;a first sense mass springedly coupled to the drive mass such that movement of the first sense mass with respect to the drive mass is substantially restricted to movement in a second direction, wherein the second direction is orthogonal to the first direction; anda first digital trigger comprising a first proximity switch coupled between the drive mass and the first sense mass, wherein the first switch is configured to switch from an open state to a closed state each time the first sense mass is in a first reference position with respect to the drive mass.2. The gyroscope of claim 1 , wherein the first switch is further configured to switch from an open state to a closed state each time the first sense mass is in a second reference position with respect to the drive ...

Apparatus and Method for Providing an In-Plane Inertial Device with Integrated Clock

An in-plane, monolithically-integrated, inertial device comprising: a support structure and first and second spring mass systems springedly coupled to the support structure. The first spring mass system comprises first and second time domain digital triggers configured to measure rotation and displacement respectively of the support structure about a first axis and along an orthogonal second axis respectively. The second spring mass system comprises third and fourth time domain digital triggers configured to measure acceleration and displacement respectively of the support structure about the second axis and along the first axis respectively. 1. An in-plane , monolithically-integrated , inertial device comprising:a support structure;a first spring mass system springedly coupled to the support structure, wherein the first spring mass system is configured to use a first time domain digital trigger operatively coupled between a first drive mass and a first sense mass to measure rotation of the support structure about a first axis, and wherein the first spring mass system is further configured to use a second time domain digital trigger operatively coupled between the support structure and the first drive mass to measure acceleration of the support structure in a second direction that corresponds to direction along a second axis, which is orthogonal to the first axis; anda second spring mass system springedly coupled to the support structure, wherein the second spring mass system is configured to use a third time domain digital trigger operatively coupled between a second drive mass and a second sense mass to measure rotation of the support structure about the second axis, and wherein the second spring mass system is further configured to use a fourth time domain digital trigger operatively coupled between the support structure and the second drive mass to measure acceleration of the support structure in a first direction that corresponds to direction along the first ...

SYSTEM AND METHOD FOR USING FLEXIBLE CIRCUITRY IN PAYMENT ACCESSORIES

Systems and methods described herein may comprise RFID data acquisition technology which may be embedded in a fob or tag for use in completing financial transactions. This fob may a self-contained device which includes a transponder and which may be contained on any portable form factor and may comprise flexible circuitry. For instance, the fob may be housed in a wearable transaction instrument, such as a bracelet, ring, wrist band, retractable id, necklace, jewelry charm, lanyard, key ring fob, watch, band, pin, and/or the like. The fob is configured to be used in concert with an RFID reader device. 1. A wearable radio-frequency identification transaction device comprising:a radio-frequency identification fob;a microprocessor; anda biometric sensor, wherein the wearable radio-frequency identification transaction device is configured to interact with a RFID reader.2. The wearable radio-frequency identification transaction device of claim 1 , wherein the biometric sensor is a fingerprint reader.3. The wearable radio-frequency identification transaction device of claim 1 , wherein the radio-frequency identification fob is configured to interact with an RFID reader coupled to a point of sale system.4. The wearable radio-frequency identification transaction device of claim 1 , wherein the radio-frequency identification transaction device is configured to be inserted and removable from an object intended to be worn by a user.5. The wearable radio-frequency identification transaction device of claim 4 , wherein the radio-frequency identification transaction device is configured to be housed within at least one of a bracelet claim 4 , ring claim 4 , wrist band claim 4 , key ring fob claim 4 , retractable id claim 4 , necklace claim 4 , jewelry charm claim 4 , lanyard claim 4 , watch claim 4 , band claim 4 , and pin.6. The wearable radio-frequency identification transaction device of claim 1 , wherein the user may configure the radio-frequency identification transaction ...

SUCTION CLEANER

A suction cleaner comprising a source of suction, for creating a suction airflow and a separator upstream of the source of suction, for separating and retaining entrained matter from the suction airflow, wherein the separator is adapted for separation of wet material from the suction airflow, the cleaner has a reservoir for liquid and there is a liquid delivery device for delivering the liquid into the suction airflow which enters the separator. 1. A suction cleaner comprising:a source of suction for creating a suction airflow;a separator upstream of the source of suction for separating and retaining entrained matter from the suction airflow;wherein the separator is adapted for separation of wet material from the suction airflow;a reservoir for a liquid; anda liquid delivery device for delivering the liquid into the suction airflow which enters the separator.2. A suction cleaner according to wherein the separator is cyclonic.3. A suction cleaner according to wherein the cleaner has a duct for conveying the suction airflow from a suction inlet to the separator claim 1 , and the liquid delivery device delivers liquid into airflow in the duct.4. A suction cleaner according to wherein the device delivers liquid in the form of dispersed fine droplets.5. A suction cleaner according to wherein the liquid includes water.6. A suction cleaner according to wherein liquid is alternatively deliverable to at least one of a surface-cleaning head or tool.7. A suction cleaner according to further comprising a pump for the liquid delivery.8. A suction cleaner according to claim 6 , further comprising a changeover valve device operable to selectively effect delivery of liquid to at least one of the duct claim 6 , the surface cleaning head claim 6 , or the tool.9. A suction cleaner according to wherein the valve device is operable on connection of a pipe to an attachment formation of the valve device.10. A suction cleaner according to wherein the valve device is provided adjacent the ...

Inertial Sensor Using Sliding Plane Proximity Switches

A time-domain inertial sensor comprising: a support structure having an electrode plane parallel to an x-y plane of an x-y-z mutually orthogonal coordinate system, wherein the support structure's largest dimension lies within the x-y plane; a proof mass having a first surface parallel to the x-y plane; wherein the proof mass is springedly coupled to the support structure such that the first surface is separated from the electrode plane by a gap; a driver configured to drive the proof mass to oscillate with respect to the support structure in approximately only the x-direction such that, while oscillating, the gap does not vary significantly; and a first, time-domain, proximity switch disposed to switch from an open state to a closed state each time the proof mass is in a first reference position with respect to the support structure.

Auto-Ranging for Time Domain Extraction of Perturbations to Sinusoidal Oscillation

A method for increasing the accuracy of a time-domain apparatus comprising the following steps: initiating a periodic oscillation with the time-domain apparatus; measuring time intervals between trigger events during each oscillation, wherein the trigger events correspond to the oscillation passing known values; detecting a perturbation to the oscillation by monitoring changes in the time intervals between trigger events; and adjusting a parameter of the oscillation based on the perturbation such that measurement error is reduced. 1. A method for increasing the accuracy of a time-domain apparatus comprising the following steps:initiating a periodic oscillation with the time-domain apparatus;measuring time intervals between trigger events during each oscillation, wherein the trigger events correspond to the oscillation passing known values;detecting a perturbation to the oscillation by monitoring changes in the time intervals between trigger events; andadjusting a parameter of the oscillation based on the perturbation such that measurement error is reduced.2. The method of claim 1 , wherein the time-domain apparatus is a harmonic oscillator.3. The method of claim 1 , wherein the time-domain apparatus is an analog to digital converter and the periodic oscillation is a periodic voltage signal.4. The method of claim 1 , wherein there are seven triggering events per oscillation.5. The method of claim 4 , wherein the parameter adjusting step further comprises decreasing the dynamic range of the time-domain apparatus and lowering the amplitude of the oscillation to a value no lower than the amplitude required to pass all seven trigger events during each oscillation such that the resolution of the time-domain apparatus is increased.6. The method of claim 1 , wherein the parameter adjusting step further comprises lowering the frequency of the periodic oscillation.7. The method of claim 1 , wherein the parameter adjusting step further comprises adjusting both the amplitude ...

Tuning Fork Gyroscope Time Domain Inertial Sensor

A gyroscope comprising: a frame; a tuning fork comprising a base and first and second prongs, wherein the base has proximal and distal ends, and wherein the proximal end is coupled to the frame and the distal end is coupled to the first and second prongs; first and second drivers configured to drive the first and second prongs respectively to oscillate with respect to the frame in a first direction, such that the prongs oscillate at their respective resonant frequencies and 180° out of phase with each other; and at least two digital position triggers operatively coupled to the frame and to the tuning fork, wherein each position trigger is configured to experience at least two trigger events during each oscillation of the tuning fork in a second direction, wherein the second direction is orthogonal to the first direction. 1. A gyroscope comprising:a frame;a tuning fork comprising a base and first and second prongs, wherein the base has proximal and distal ends, and wherein the proximal end is coupled to the frame and the distal end is coupled to the first and second prongs;first and second drivers configured to drive the first and second prongs respectively to oscillate with respect to the frame in a first direction, such that the prongs oscillate at their respective resonant frequencies and 180° out of phase with each other; andat least two digital position triggers operatively coupled to the frame and to the tuning fork, wherein each position trigger is configured to experience at least two trigger events during each oscillation of the tuning fork in a second direction, wherein the second direction is orthogonal to the first direction.2. The gyroscope of claim 1 , further comprising a third driver configured to drive the tuning fork to oscillate with respect to the frame in the second direction.3. The gyroscope of claim 1 , wherein each position trigger comprises a pair of second-direction-stacked electron-tunneling-tip switches claim 1 , wherein each pair of ...

A tool for a surface cleaning apparatus

A tool for a surface cleaning apparatus, including a floor head including a floor facing surface which defines an inlet for receiving dirt-laden air, which inlet is generally positioned in a first plane P; a passage for carrying dirt-laden air from the floor head to the apparatus; a connecting member for connecting the tool to a surface cleaning apparatus, wherein the floor head and connecting member are pivotally connected about an axis A; and a blocking device for inhibiting pivotal movement of the connecting member about axis A. The blocking device is moveable to a blocking condition in which pivotal movement of the connecting member downwardly outside of a pre-determined use condition is inhibited.

Z-AXIS PHYSICAL PROXIMITY SWITCH

Sensors and systems are described herein for out-of-plane sensing. In particular, the sensors and systems relate to vibratory inertial sensors implementing time-domain sensing techniques with linear combinations of multiple signals. In out-of-plane sensing, these multiple signals may be produced from a single sense mass oscillation. Time intervals produced from linear combinations of these multiple signals can be used to measure inertial parameters, such as acceleration, and other values of interest. 1. An out-of-plane sensor , comprising:a sense mass coupled to an in-plane support structure; the sense mass configured to oscillate out-of-plane with respect to the in-plane support structure; a first electrode at a first radial distance of the sense mass and producing a first signal; and', 'a second electrode at a second radial distance of the sense mass and producing a second signal; and, 'a time domain switch coupled to the sense mass, comprisinga processor in signal communication with the time domain switch and configured to detect time intervals from a linear combination of the first signal and the second signal.2. The out-of-plane sensor of claim 1 , wherein the sense mass oscillates out-of-plane in rotation about an axis in a plane of the in-plane support structure.3. The out-of-plane sensor of claim 2 , wherein:the first radial distance is larger than the second radial distance;the first electrode has a first area; andthe second electrode has a second area, wherein the first area is larger than the second area.4. The out-of-plane sensor of claim 3 , wherein the linear combination of the first signal and the second signal is a differential in capacitance.5. The out-of-plane sensor of claim 4 , wherein the time intervals are based in part on times at which the differential in capacitance is equal to zero.6. The out-of-plane sensor of claim 5 , further comprising determining an acceleration of the in-plane support structure based on the time intervals.7. The out- ...

SURFACE CLEANING APPARATUS

A surface cleaning apparatus () is described including a dirt collection container () and an inlet passage () leading to the dirt collection container () through which dirt-laden air is drawn by a source of suction. The apparatus further includes a moveable blocking member () positioned in the passage () where the blocking member () is moveable between a blocking position, in which the passage () is blocked or substantially blocked, and an unblocking position, in which air can pass through the passage (). The apparatus includes a receiving formation () for receiving at least a portion of the moveable blocking member () when the blocking member is in its unblocking position. 1. A surface cleaning apparatus comprising:a dirt collection container;a passage leading to the dirt collection container through which dirt-laden air is drawn by a source of suction; anda moveable blocking member positioned in the passage;wherein the blocking member is moveable between a blocking position, in which the passage is substantially blocked, and an unblocking position, in which air can pass through the passage,wherein the apparatus includes a receiving formation for receiving at least a portion of the moveable blocking member when the blocking member is in its unblocking position.2. An apparatus according to wherein the blocking member moves towards its unblocking position under the influence of the source of suction.3. An apparatus according to wherein the blocking member is resiliently biased towards its blocking position.4. An apparatus according to wherein the blocking member is resiliently biased towards its blocking position claim 3 , such that in the absence of any suction the blocking member automatically assumes its blocking position.5. An apparatus according to wherein the blocking member is fixed at one end and has a substantially opposite free end.6. An apparatus according to wherein as the blocking member moves towards its unblocking position claim 5 , a free end thereof ...

CRIB LINER

A crib liner, suitable for use with a crib, wherein the crib has a first, second, third and fourth side configured for receiving a mattress is disclosed. The crib also includes four corners, wherein each corner is constructed as part of where two adjacent sides meet; wherein at least one first, second, third or fourth sides has a horizontal top bar and a plurality of vertical spaced support elements. The crib liner includes at least a first panel configured to cover a portion of the vertical spaced support elements. The first panel includes a breathable body portion, a bottom border, a top border and side borders and at least a first and second fastener at each end to attach the first panel to the crib. The breathable body portion includes a first material having a front layer and a back layer attached to each other and having different fabric weaves; the breathable body portion having an air permeability of between 385 CFM to 1530 CFM and a light permeability of between 47 and 99%. 1. A crib liner , suitable for use with a crib , wherein the crib has a first , second , third and fourth side configured for receiving a mattress; wherein the crib also includes four corners , wherein each corner is constructed as part of where two adjacent sides meet; wherein at least one first , second , third or fourth sides has a horizontal top bar and a plurality of vertical spaced support elements , the crib liner comprising: a breathable body portion, a bottom border, a top border and side borders; and', 'at least a first and second fastener at each end to attach the first panel to the crib;', 'wherein the breathable body portion includes a first material having a front layer and a back layer attached to each other and having different fabric weaves., 'at least a first panel configured to cover a portion of the vertical spaced support elements, the first panel including2. The crib liner of claim 1 , wherein the body portion further comprises a mesh-type material having a mesh ...

Converting rotational motion to linear motion

System and methods are disclosed herein for converting rotational motion to linear motion. A system comprising a rotational drive can be connected to a proof mass by a first structure comprising a coupling spring. An anchor can be connected to the proof mass by a second structure comprising a drive spring. The coupling spring and the drive spring can be configured to cause the proof mass to move substantially along a first axis when the rotational drive rotates about a second axis.

CRIB SHIELD SYSTEM AND OTHER BREATHABLE APPARATUS

An apparatus and method for making same utilizing a breathable mesh material having a reduced suffocation resistance level for infant and toddler use. The breathable mesh material includes an inner and outer fabric that includes larger openings on the front substructure than on the back substructure and a pile substructure is integrated and extends between the front and back substructures allowing air to substantially move effectively therethrough. 1. A crib shield system , suitable for use with a crib , wherein the crib has a first and second side rail and a first and second endboard; wherein the first and second side rails and first and second endboards are configured for receiving a rectangular-shaped mattress; wherein the crib also includes four corner posts , wherein each corner post is constructed as part of a side rail , an endboard , or both; wherein at least one of the first and second side rails or the first and second endboards has a horizontal top bar and a plurality of vertical spaced support elements , wherein the crib shield system comprises:a breathable liner comprised of a panel, wherein the panel is configured to cover at least a substantial portion of the first and second side rails and the first and second endboards with a breathable material comprising openings too small to permit an infant to insert a finger or toe therethrough; wherein the panel is comprised substantially of the breathable material; wherein the panel wraps around the perimeter of the rectangular-shaped mattress; and wherein the panel is rectangular.2. The crib shield system of claim 1 , further comprising at least one bottom fastening apparatus of the panel provided at one or more positions along the bottom edge of the panel.3. The crib shield system of claim 1 , wherein one or more fastening apparatus comprises a hook and loop fastener.4. The crib shield system of claim 1 , wherein the breathable material comprises a breathable integrated padded mesh material.5. The crib ...

System and Method for Controlling Temperature and Humidity in Multiple Spaces using Liquid Desiccant

A branch controller operates with a system for temperature and humidity control. The branch controller includes a fluid control system for controlling a flow of the liquid desiccant in an arrangement of channels forming a first path for exchanging the liquid desiccant between a liquid desiccant conditioning unit and at least a first space conditioning unit and a second path for directing the liquid desiccant received from the first space conditioning unit to a second space conditioning unit. The branch controller includes a processor for comparing operational conditions of the first space conditioning unit and the second space conditioning unit. The processor selects between the first path and the second path based on the comparison and commands the fluid control system to control the flow of the liquid desiccant according to the selected path. 1. A branch controller of a system for temperature and humidity control , the system including a liquid desiccant conditioning unit for changing a temperature and a concentration of a liquid desiccant and a plurality of space conditioning units for controlling the temperature and the humidity in a plurality of spaces using the liquid desiccant , the branch controller comprising:a fluid control system for controlling a flow of the liquid desiccant in an arrangement of channels forming a first path for exchanging the liquid desiccant between the liquid desiccant conditioning unit and at least a first space conditioning unit and a second path for directing the liquid desiccant received from the first space conditioning unit to a second space conditioning unit; anda processor for comparing operational conditions of the first space conditioning unit and the second space conditioning unit, for selecting between the first path and the second path based on the comparison and for commanding the fluid control system to control the flow of the liquid desiccant according to the selected path.2. The branch controller of claim 1 , further ...

BREATHABLE MATTRESS PAD AND SLEEPING ACCESSORIES

Sleeping accessories such as mattress pads, mattress topper covers, and sheet savers are disclosed herein comprising integrated padded mesh material. Integrated padded mesh material, when used in the sleeping accessories, results in improved air flow for the user, which can reduce complications during sleep such as sudden infant death syndrome. The material may have one or multiple layers, and may include a moisture wicking fabric, allergy-blocking fabric, or water resistant fabric. Certain layers are padded to provide more comfort for the user and in some embodiments, the padded layer may be sloped to assist with reflux. 1. An apparatus , comprising:a sleeping accessory,in which at least a portion of the sleeping accessory comprises breathable integrated padded mesh material, andwherein the sleeping accessory is selected from the group consisting of a mattress pad, a mattress topper cover, and a sheet saver2. The apparatus of claim 1 , in which the sleeping accessory comprises at least two layers.3. The apparatus of claim 2 , in which the sleeping accessory comprises:a first layer comprising a lightweight liner fabric;a second layer comprising a breathable integrated padded mesh material; anda third layer comprising an allergy-blocking fabric.4. The apparatus of claim 3 , in which the second layer has a thickness of at least approximately one-half of an inch.5. The apparatus of claim 2 , in which the at least two layers are coupled together by sewing at the seams.6. The apparatus of claim 2 , in which the at least two layers are coupled together by quilting.7. The apparatus of claim 1 , in which the sleeping accessory comprises a top side fabric and a bottom side fabric claim 1 , the bottom side fabric different than the top side fabric.8. The apparatus of claim 8 , in which the bottom side fabric comprises a water-proof fabric.9. The apparatus of claim 1 , in which the apparatus is approximately twenty-eight inches by approximately fifty-two inches in size.10. The ...

BREATHABLE MATTRESS PAD

Sleeping accessories such as mattress pads, mattress topper covers, and sheet savers are disclosed herein comprising integrated padded mesh material. Integrated padded mesh material, when used in the sleeping accessories, results in improved air flow for the user, which can reduce complications during sleep such as sudden infant death syndrome. The material may have one or multiple layers, and may include a moisture wicking fabric, allergy-blocking fabric, or water resistant fabric. Certain layers are padded to provide more comfort for the user and in some embodiments, the padded layer may be sloped to assist with reflux. 1. An apparatus , comprising:a sleeping accessory,in which at least a portion of the sleeping accessory comprises breathable integrated padded mesh material, andwherein the sleeping accessory is selected from the group consisting of a mattress pad, a mattress topper cover, and a sheet saver.2. The apparatus of claim 1 , in which the sleeping accessory comprises at least two layers.3. The apparatus of claim 2 , in which the sleeping accessory comprises:a first layer comprising a lightweight liner fabric;a second layer comprising a breathable integrated padded mesh material; anda third layer comprising an allergy-blocking fabric.4. The apparatus of claim 3 , in which the second layer has a thickness of at least approximately one-half of an inch.5. The apparatus of claim 2 , in which the at least two layers are coupled together by sewing at the seams.6. The apparatus of claim 2 , in which the at least two layers are coupled together by quilting.7. The apparatus of claim 1 , in which the sleeping accessory comprises a top side fabric and a bottom side fabric claim 1 , the bottom side fabric different than the top side fabric.8. The apparatus of claim 8 , in which the bottom side fabric comprises a water-proof fabric.9. The apparatus of claim 1 , in which the apparatus is approximately twenty-eight inches by approximately fifty-two inches in size.10. ...

FLOOR TOOL

A floor tool for an apparatus for cleaning a floor surface includes a source of suction. The floor tool includes a housing having an interior surface that defines a chamber for receiving at least a portion of a cleaning member. The housing includes a chamber inlet for receiving dirty air, and a chamber outlet for communication with the suction source. The housing is formed of at least two housing portions which provide said interior surface and all of said housing portions are permanently connected or permanently joined to each other. 148-. (canceled)49. A floor tool for an apparatus for cleaning a floor surface , said apparatus including a source of suction , the floor tool including: a chamber inlet for receiving dirty air; and', 'a chamber outlet for communication with the suction source,, 'a housing having an interior surface that defines a chamber for receiving at least a portion of a cleaning member, the housing includingwherein the housing is formed of at least two housing portions which provide said interior surface and all of said housing portions are permanently connected or permanently joined to each other.50. A floor tool according to claim 49 , wherein one of the housing portions includes a floor facing surface and the chamber inlet is formed at least partially claim 49 , and preferably completely claim 49 , in said housing portion.51. A floor tool according to claim 49 , wherein the housing has an opening through which the cleaning member can pass into the chamber.52. A floor tool according to claim 51 , wherein the opening is formed in a laterally facing side wall of the housing.53. A floor tool according to claim 51 , including a cleaning member positioned at least partially in the chamber.54. A floor tool according to claim 53 , wherein a portion of the cleaning member extends outside of the chamber.55. A floor tool according to claim 53 , wherein the housing includes a closing member that co-operates with the cleaning member so as to substantially ...

CRIB SHIELD SYSTEM AND OTHER BREATHABLE APPARATUS

An apparatus and method for making same utilizing a breathable mesh material having a reduced suffocation resistance level for infant and toddler use. The breathable mesh material includes an inner and outer fabric that includes larger openings on the front substructure than on the back substructure and a pile substructure is integrated and extends between the front and back substructures allowing air to substantially move effectively therethrough. 1. A crib shield system for a crib , wherein the crib comprises a first and second side rail , a headboard , and a footboard connected and sized for receiving a mattress therein , wherein at least one of the first and second side rails comprises a top bar and a plurality of spaced support elements , wherein the crib shield system comprises:a first and second side panel, wherein each of the first and second side panels is configured as a separate panel to cover at least a substantial portion of a corresponding side rail with a mesh-type material comprising openings too small to permit an infant to insert a finger or toe therethrough, wherein each of the first and second side panels comprises at least one fastening apparatus that extends along an entire edge of the side panel to attach the side panel to the top bar of a corresponding side rail, and further wherein each of the first and second side panels comprises at least one other fastening apparatus for securing the side panel to the corresponding side rail.2. The crib shield system of claim 1 , wherein the system further comprises:at least one of a first and second end panel, wherein each of the at least one first and second end panels is configured as a separate panel to cover at least a substantial portion of a corresponding headboard or footboard with a mesh-type material having openings too small to permit an infant to insert a finger or toe therethrough, wherein each of the first and second end panels comprises at least one fastening apparatus that extends along an ...

BREATHABLE PILLOW

An integrated padded mesh material may be used in pillows or pillowcases for improved air flow around a user of the pillow or pillowcase during rest. When used in a pillow, the material may substantially cover the side of the pillow that a user's head rests upon. Other materials, such as mesh and satin materials, may be used to complete construction of the pillow. The pillow may take on familiar shapes, such as a dog. When the integrated padded mesh material is used in a pillowcase the pillowcase may be wrapped around a conventional pillow to increase air flow during rest. The pillowcase may include several layers such as the integrated padded mesh material and an allergy-blocking fabric. 1. An apparatus for use with a pillow , comprising:a case for enclosing the pillow,in which at least a portion of the case comprises breathable integrated padded mesh material.2. The apparatus of claim 1 , in which the case comprises three layers.3. The apparatus of claim 2 , in which the case comprises:a first layer comprising a lightweight liner fabric;a second layer comprising a breathable integrated padded mesh material; anda third layer comprising an allergy-blocking fabric.4. The apparatus of claim 3 , in which the second layer has a thickness of at least approximately two millimeters.5. The apparatus of claim 1 , in which the breathable integrated padded mesh material has a suffocation resistance level of less than about 15 cm HO as determined by RAM Consulting Virtual Child Suffocation Hazard Assessment Model.6. The apparatus of claim 1 , in which the at least two layers are coupled together by sewing at the seams.7. The apparatus of claim 1 , in which the pillow is at least one of a support pillow claim 1 , a wedge claim 1 , a sleep positioner claim 1 , and a headrest.8. The apparatus of claim 1 , in which the apparatus is a toddler pillowcase having a size of approximately 12 inches by approximately 18 inches.9. The apparatus of claim 1 , in which the apparatus is a kids ...

BREATHABLE SECURITY BLANKET

A breathable security blanket may include a breathable material layer attached to various ornamental or aesthetic additions without interfering with the breathable material layer. Attachments to the breathable security blanket may also include breathable material. 1. A security blanket , comprising:a breathable material layer; anda three-dimensional attachment to the security blanket, in which the attachment comprises polyfill.2. The security blanket of claim 1 , in which the breathable material comprises breathable padded mesh material.3. The security blanket of claim 2 , in which the breathable padded mesh material has a suffocation resistance level of less than about 15 cm HO as determined by RAM Consulting Virtual Child Suffocation Hazard Assessment Model.4. The security blanket of claim 1 , in which the three-dimensional attachment is attached to the center of the breathable material layer.5. The security blanket of claim 1 , in which the perimeter of the breathable material layer is covered by trim comprising satin.6. The security blanket of claim 1 , in which the breathable material layer comprises at least two layers.7. The security blanket of claim 7 , in which the breathable material layer comprises a lightweight liner fabric and a mesh fabric.8. The security blanket of claim 8 , in which the breathable material layer is sewn together.9. The security blanket of claim 8 , in which the at least two layers are coupled together by sewing at the seams.{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'claim-text': a first layer comprising a modal fabric;', 'a second layer comprising padding; and', 'a third layer comprising a fabric., 'The security blanket of , the breathable material layer further comprising10. The security blanket of claim 9 , the second layer further comprising:a breathable mesh.11. The security blanket of claim 9 , the second layer further comprising:a polyester fill, in which the fill is configured of parallel strands of polyester fill.12. ...

BREATHABLE MODAL BLANKET

A breathable blanket may be made from a breathable mesh material to improve airflow through the blanket. The breathable blanket may include a multi-layer material having a combination of light-weight modal fabric and padding. Breathable padded mesh may also be used with the modal fabric. The padding may include a thin polyfill formed of adjacent, parallel rows. The blanket may be have a shape similar to an animal and include attachments, such as a stuffed polyfill head. Additionally, the blanket may include ornamental additions of satin to further convey the animal shape. 1. An apparatus , comprising: a first layer comprising a modal fabric;', 'a second layer comprising padding; and', 'a third layer comprising a fabric., 'a blanket, the blanket further comprising2. The apparatus of claim 1 , in which the blanket has a suffocation resistance level of less than about 15 cm HO as determined by RAM Consulting Virtual Child Suffocation Hazard Assessment Model.3. The apparatus of claim 1 , sized and arranged to fit within a baby crib.4. The apparatus of claim 1 , wherein the second layer is comprised of a padding fill claim 1 , wherein the padding fill is comprised of adjacent claim 1 , parallel rows of fill piping.5. The apparatus of claim 4 , wherein the padding fill is no more than 5 millimeters thick.6. The apparatus of claim 5 , wherein the blanket has a suffocation resistance level of less than about 15 cm HO as determined by RAM Consulting Virtual Child Suffocation Hazard Assessment Model.7. The apparatus of claim 1 , wherein the three layers are spot stitched together claim 1 , in which the individual spot stitches are less than 1 centimeter apart.8. The apparatus of claim 1 , in which the third layer is a modal fabric.9. The apparatus of claim 8 , wherein the second layer is comprised of a padding fill claim 8 , wherein the padding fill is comprised of adjacent claim 8 , parallel rows of fill piping claim 8 , wherein the padding fill is no more than 5 millimeters ...

Method and System for Reconstructing Sampled Signals

A method reconstructs a signal by sampling the signal using a sampling procedure to obtain an input signal. A consistent set is determined from the input signal including the first elements such that applying the sampling procedure to the first elements results in the input signal. According to the type of the signal, a guiding set is determined including second elements disjoint from the first elements. A reconstruction set including third elements is generated so that the third elements minimize a sum of a first similarity measure of the third elements to the second elements and a second similarity measure of the third elements to the first elements. A transformed signal that minimizes a function on the reconstruction set is determined. A reconstructed signal is rendered so that a third similarity measure of the reconstructed signal to the transformed signal is smaller than a tolerance.

POCKET SWADDLE

A baby swaddle fashioned from breathable mesh material has a pocket for receiving a baby. The swaddle may also include a left and right outer wing for wrapping around the baby. One or more of the wings are cinched and released through a non-hook and loop closure apparatus to avoid waking up a sleeping baby. 1. A baby swaddle comprising:a rear garment section having an inner surface and an outer surface, wherein at least a portion of the rear garment comprises a breathable mesh material;a front garment section having an inner surface and an outer surface, wherein a portion of the front garment is stitched to a portion of the rear garment to create a pocket for receiving a baby, in which the pocket comprises a upper edge, a lower edge, a left edge and a right edge, wherein the upper and lower edges have no seams,and wherein the swaddle comprises a stitched seam along the left edge of the pocket in which the stitched seam has a length shorter than the length of the left edge of the pocket, and a stitched seam along the right edge of the pocket in which the stitched seam has a length shorter than the length of the right edge,and wherein the stitched seam along a left or right edge of the pocket extends further away from the lower edge of the pocket than the stitched seam along the opposite edge, andand wherein at least a portion of the front garment comprises breathable mesh material.2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. The baby swaddle of claim 1 , wherein the rear garment section is triangular in shape.8. The baby swaddle of claim 1 , wherein the rear garment further comprises:a left outer wing; anda right outer.9. The baby swaddle of claim 8 , wherein the left outer wing is shorter than the right outer wing.10. The baby swaddle of claim 1 , wherein inner surfaces of the rear garment section and the front garment section are brushed.11. The baby swaddle of claim 1 , further comprising a closure apparatus.12. The baby swaddle of claim 11 ...

SYSTEM AND METHOD FOR USING FLEXIBLE CIRCUITRY IN PAYMENT ACCESSORIES

Systems and methods described herein may comprise RFID data acquisition technology which may be embedded in a fob or tag for use in completing financial transactions. This fob may a self-contained device which includes a transponder and which may be contained on any portable form factor and may comprise flexible circuitry. For instance, the fob may be housed in a wearable transaction instrument, such as a bracelet, ring, wrist band, retractable id, necklace, jewelry charm, lanyard, key ring fob, watch, band, pin, and/or the like. The fob is configured to be used in concert with an RFID reader device. 1. A computer-implemented method comprising:storing, by a processor configured for performing a transaction, encrypted biometric data associated with a user transaction account to a wearable radio-frequency identification transaction device, to create stored user transaction account data;inputting, by the processor, biometric data, via a biometric sensor housed on the wearable radio-frequency identification transaction device;encrypting, by the processor, the inputted biometric data;comparing, by the processor, the inputted encrypted biometric data to the stored encrypted biometric data;accessing, by the processor, the stored user transaction account data of a plurality of stored user transaction account data, in response to the inputted encrypted biometric data matching the stored encrypted biometric data associated with the user transaction account;enabling, by the processor, wireless transmitting capabilities of the wearable radio-frequency identification transaction device, in response to the inputted encrypted biometric data matching the stored encrypted biometric data; andtransmitting, by the processor, the stored user transaction account data.2. The method of claim 1 , wherein the biometric sensor is a fingerprint reader.3. The method of claim 1 , wherein the wearable radio-frequency identification transaction device comprises a radio-frequency identification fob ...

Apparatus And Methods For Time Domain Measurement Using Phase Shifted Virtual Intervals

Systems and methods for perturbation analysis of harmonic oscillations in the time domain according to several embodiments can include a time domain switching sensor and a resonator for imposing a first oscillation and a second oscillation on the sensor. The first and second oscillations can have the same amplitude A and period P, but can have a known phase shift. The sensor can use a time interval, which can be defined by the time between when the sensor passes a reference point due to motion caused by the first oscillation and when the sensor passes the same reference point, but due to motion caused by the second oscillation. With this configuration an improved accuracy of measurement for the system can be realized. 1. A measurement system:said measurement system using perturbation analysis of harmonic oscillations in the time domain, and further comprising;at least one oscillation means for imposing a first oscillation and a second oscillation on said at least one system;said first oscillation and said second oscillation having an amplitude A, a period P and a known phase shift; and,said system using a time interval defined by when said system passes a reference point due to said first imposed oscillation is passed, and by when said system passes said reference point, but due to said second imposed oscillation.2. The system of wherein said time interval is less than said period P.3. The system of wherein said time interval is less than one half of said period (P/2).4. The system of wherein said phase shift is 180 degrees.5. The system of wherein said sensor is a cantilevered mass-on-spring comprising a rigid frame and a cantilevered portion extending from said rigid frame claim 1 , and further wherein said cantilevered portion passes said reference point due to said first oscillation and said second oscillation.6. A method for measuring inertial force comprising:A) affording a cantilevered mass-on-spring sensor;B) establishing a first harmonic oscillation and a ...

CRIB SHIELD SYSTEM AND OTHER BREATHABLE APPARATUS

An apparatus and method for making same utilizing a breathable mesh material having a reduced suffocation resistance level for infant and toddler use. The breathable mesh material includes an inner and outer fabric that includes larger openings on the front substructure than on the back substructure and a pile substructure is integrated and extends between the front and back substructures allowing air to substantially move effectively therethrough. 1. A crib shield system , suitable for use with a crib , wherein the crib has a first and second side rail and a first and second endboard; wherein the first and second side rails and first and second endboards are configured for receiving a rectangular-shaped mattress; wherein the crib also includes four corner posts , wherein each corner post is constructed as part of a side rail , an endboard , or both; wherein at least one of the first and second side rails or the first and second endboards has a horizontal top bar and a plurality of vertical spaced support elements , wherein the crib shield system comprises:a breathable liner comprised of a panel, wherein the panel is configured to cover at least a substantial portion of the first and second side rails and the first and second endboards with a breathable material comprising openings too small to permit an infant to insert a finger or toe therethrough; wherein the panel is comprised substantially of the breathable material; wherein the panel wraps around the perimeter of the rectangular-shaped mattress; and wherein the panel is rectangular.2. The crib shield system of claim 1 , further comprising at least one bottom fastening apparatus of the panel provided at one or more positions along the bottom edge of the panel.3. The crib shield system of claim 1 , wherein one or more fastening apparatus comprises a hook and loop fastener.4. The crib shield system of claim 1 , wherein the breathable material comprises a breathable integrated padded mesh material.5. The crib ...

BREATHABLE GARMENT AND METHOD OF USE

A garment includes a front side and a back side. The front side and back side are coupled to surround at least part of a person's body. The front side includes a mesh outer shell and a lightweight inner mesh liner, and the inner mesh liner includes a material that provides moisture wicking The back side includes a breathable material that substantially maintains three-dimensional breathability when the person rests upon it. The garment provides breathability substantially surrounding said at least part of the person's body. 1. A garment comprising:a front side; anda back side, in which the front side and hack side are coupled to surround at least part of a person's body, the front side including a mesh outer shell and a lightweight inner mesh liner, the inner mesh liner including a material that provides moisture wicking, the back side including a breathable material that substantially maintains three-dimensional breathability when the person rests upon it, the garment providing breathability substantially surrounding said at least part of the person's body.2. The garment of comprising a wearable blanket that encloses the infant's body from feet to shoulders.3. The garment of in which the back side further comprises the inner mesh liner.4. The garment of in which the back side comprises:a first layer of spacer mesh;a second layer of spacer mesh; anda spacer filler between the first and second layers of spacer mesh.5. The garment of in which the back side lacks adhesive.6. The garment of in which a material of the spacer finer includes a plurality of vertical and horizontal air passageways.7. The garment of in which the plurality of vertical and horizontal air passageways collectively form an air-permeable web-like structure between the first and second layers of mesh.8. The garment of in which the first and second layers of spacer mesh comprise single knit layers.9. The garment of including an item selected from the list consisting of:a shirt;pants;pajamas;adult ...

CRYPTOGRAPHY METHOD AND SYSTEM FOR SECURING DATA VIA ELECTRONIC TRANSMISSION

Provided are QR Codes configured with a Transactional Cryptopgrahy (“TC”) component and methods for using thereof in a secure manner without the need for specialized hardware. By using software-defined security, QR codes can be used for a wider array of purposes without the additional expense and maintenance of separate hardware platforms for secure information 1. A method for encrypting data within a QR code utilizing a data encryption server , comprising the steps of:registering, with the server, a data originator;creating, by the server, a data originator encryption key and a corresponding recipient encryption key, the data originator encryption key and the recipient encryption key being a randomly-generated asymmetrical key-pair set configured for one-time use and not otherwise publicly stored;transmitting, by the server, the data originator encryption key to a data originator peripheral device and the recipient encryption key to a recipient peripheral device;encrypting data within the QR code to be transmitted by the data originator peripheral device with the data originator encryption key;transmitting the encrypted data within the QR code to the recipient peripheral device;verifying that the recipient encryption key and the data originator encryption key are from the same randomly-generated key-pair set; andif/when the recipient encryption key and the data originator encryption key are verified to be from the same randomly-generated key-pair set, decrypting the encrypted data within the QR code received by the recipient peripheral device such that information within the QR code is accessible and may be viewed/read.2. The method according to claim 1 , wherein the randomly-generated key-pair set is utilized for a single data transmission between the data originator peripheral device and the recipient peripheral device and discarded after decryption of the transmitted data.3. The method according to claim 2 , wherein the data to be transmitted is a message and ...

CYCLONIC SEPARATION DEVICE

A cyclonic separator device for removing dust or debris from dirt-laden air, the device having a separating chamber, an inlet, an outlet, and a shroud that is connected to the separating chamber at one end, and provides a plurality of openings for the passage of air to the outlet. The device further includes a dirt collection chamber in communication with the separating chamber. The separating chamber includes an airflow directing formation which is connected to an inner surface of a generally cylindrical portion and which extends inwardly towards a central axis of the generally cylindrical portion. The airflow directing formation provides a surface which follows a substantially helical path that extends away from the inlet as it extends circumferentially around the inner surface of the generally cylindrical portion. 1. A cyclonic separator device for removing dust or debris from dirt-laden air , the device comprising:a separating chamber;an inlet through which dirt-laden air is drawn into the separating chamber;an outlet through which cleaner air exits the separating chamber; anda shroud that is connected to the separating chamber at one end, and provides a plurality of openings for the passage of air to the outlet,a dirt collection chamber in communication with the separating chamber,wherein the separating chamber includes a generally cylindrical portion with a central axis and wherein the inlet is configured to direct the incoming dirt-laden air into said generally cylindrical portion such that it travels circumferentially around an inner surface of the separating chamber,wherein the separating chamber includes an airflow directing formation which is connected to the inner surface of the generally cylindrical portion and which extends inwardly towards the central axis of the generally cylindrical portion, wherein said airflow directing formation provides a surface which follows a substantially helical path that extends away from the inlet as it extends ...

SURFACE CLEANING APPARATUS

A surface cleaning apparatus including a housing supporting a suction source including a motor with an axle that rotates a fan and a dirt collection container having an elongate axis (A). The elongate axis (A) of the dirt collection container is transverse to an axis of the axle of the motor, and the axis of the axle of the motor is offset from the elongate axis of the dirt collection container. 1. A surface cleaning apparatus comprising: a suction source including a motor with an axle that rotates a fan; and', 'a dirt collection container having an elongate axis (A),, 'a housing supporting'}wherein the elongate axis (A) of the dirt collection container is transverse to an axis of the axle of the motor, and wherein the axis of the axle of the motor is offset from the elongate axis of the dirt collection container.2. An apparatus according to wherein the apparatus includes a floor head and an elongate member connecting the floor head to the housing claim 1 , said elongate member including a passage for carrying dirt-laden air from the floor head to the dirt collection container.3. An apparatus according to wherein the elongate axis of the dirt collection container is substantially horizontal in normal use.4. An apparatus according to wherein in normal use the axis of the axle of the motor extends towards the floor head and underneath the axis of the dirt collection container.5. An apparatus according to wherein in normal use the axis of the axle of the motor extends towards the floor head and underneath a lowermost wall of the dirt collection container.6. An apparatus according to claim 1 , wherein an elongate axis (B) of the elongate member is substantially parallel with the axis of the axle of the motor.7. An apparatus according to wherein the axes of the elongate member and the axle of the motor are offset from each other.8. An apparatus according to wherein in normal use the axis of the axle of the motor is positioned beneath the axis of the elongate member.9. A ...

CRIB LINER

A crib liner, suitable for use with a crib, wherein the crib has a first, second, third and fourth side configured for receiving a mattress is disclosed. The crib also includes four corners, wherein each corner is constructed as part of where two adjacent sides meet; wherein at least one first, second, third or fourth sides has a horizontal top bar and a plurality of vertical spaced support elements. The crib liner includes at least a first panel configured to cover a portion of the vertical spaced support elements. The first panel includes a breathable body portion, a bottom border, a top border and side borders and at least a first and second fastener at each end to attach the first panel to the crib. The breathable body portion includes a first material having a front layer and a back layer attached to each other and having different fabric weaves; the breathable body portion having an air permeability of between 385 CFM to 1530 CFM and a light permeability of between 47 and 99%. 1a crib, wherein the crib has a first, second, third and fourth side configured for receiving a mattress, the crib includes four corners, wherein each corner is constructed as part of where two adjacent sides meet; wherein at least one of the first, second, third or fourth side has a horizontal top bar and a plurality of vertical spaced support elements; anda liner substantially surrounding a perimeter of the mattress, the liner including holes too small for a finger of a baby to penetrate.. A crib protection system, comprising This application is a continuation of U.S. patent application Ser. No. 15/729,530 filed Oct. 10, 2017, which claims the benefit of U.S. Provisional Patent Application No. 62/559,117 filed Sep. 15, 2017, and U.S. patent application Ser. No. 15/729,530 is a continuation-in-part application of U.S. patent application Ser. Nos. 15/195,621; 15/195,663; 15/195,698; and Ser. No. 15/196,021, all filed Jun. 28, 2016, and is a continuation-in-part application of U.S. patent ...

Surface cleaning apparatus

A surface cleaning apparatus is described including a housing supporting a suction source including a motor with an axle which rotates a fan and a dirt collection container. The motor is positioned within a motor chamber and the motor chamber is positioned within a further chamber, and there being an opening in the motor chamber for permitting exhaust air to pass therefrom to the further chamber. The housing includes an exhaust outlet and wherein air from the motor chamber passes to the exhaust outlet around opposing sides of the motor chamber. In an alternative embodiment air from the motor chamber passes to the exhaust outlet through an air diffusing member.

CRYPTOGRAPHY METHOD AND SYSTEM FOR SECURING DATA VIA ELECTRONIC TRANSMISSION

A blockchain-based record of transactions taking place through a smartphone or other electronic/peripheral device. The blockchain record itself contains mathematical hashes, including encryption if desired, based on the various data components of a smartphone or other device, which creates a distributed ledger system that is extremely difficult to break into to add, delete, or alter individual transactions after the fact. 1. A method for encrypting data within a blockchain and/or blockchain communication utilizing a data encryption server , comprising the steps of:registering, with the server, a data originator;creating, by the server, a data originator encryption key and a corresponding recipient encryption key, the data originator encryption key and the recipient encryption key being a randomly-generated asymmetrical key-pair set configured for one-time use and not otherwise publicly stored;transmitting, by the server, the data originator encryption key to a data originator peripheral device and the recipient encryption key to a recipient peripheral device;encrypting data within a first block and/or transaction to be transmitted by the data originator peripheral device with the data originator encryption key to a recipient peripheral device;transmitting the encrypted data within the first block and/or transaction to the recipient peripheral device;verifying that the recipient encryption key and the data originator encryption key are from the same randomly-generated key-pair set; andwhen the recipient encryption key and the data originator encryption key are verified to be from the same randomly-generated key-pair set, decrypting the encrypted data within the first block and/or transaction received by the recipient peripheral device such that information within the first block and/or transaction is accessible and may be viewed/read.2. The method according to claim 1 , wherein the randomly-generated key-pair set is utilized for a single data transmission between the ...

SMART ENTRAINMENT ATOMISATION MIXING SYSTEM

A nozzle for injecting a first liquid mass into a stream of second liquid mass flowing within a pipe, comprising a first, outer, cylinder and second, inner, cylinder concentrically arranged about a nozzle axis, securing means for securing the nozzle to a wall of the pipe with the nozzle axis orthogonal to the pipe wall, the nozzle projecting into an interior of the pipe in use, duct means for receiving the first liquid mass and transporting it to the interior of the inner and outer cylinders, the inner cylinder comprising at least one hole arranged to expel liquid therethrough, and the outer cylinder comprising at least one hole arranged to expel liquid therethrough. 1. A nozzle for injecting a first liquid mass into a stream of second liquid mass flowing within a pipe , comprising:a first, outer, cylinder and second, inner, cylinder concentrically arranged about a nozzle axis;securing means for securing the nozzle to a wall of the pipe with the nozzle axis orthogonal to the pipe wall, the nozzle projecting into an interior of the pipe in use;duct means for receiving the first liquid mass and transporting it to the interior of the inner and outer cylinders;the inner cylinder comprising at least one hole arranged to expel liquid therethrough; andthe outer cylinder comprising at least one hole arranged to expel liquid therethrough.2. The nozzle according to claim 1 , wherein the outer cylinder comprises at least one hole arranged to expel liquid therethrough an angle to the nozzle axis.3. The nozzle according to claim 1 , wherein said at least one hole in the outer cylinder comprises a slit.4. The nozzle according to claim 1 , wherein the outer cylinder comprises at least one hole arranged to expel liquid therethrough in a direction upstream of the second liquid mass flowing within the pipe.5. The nozzle according to claim 1 , wherein said at least one hole in the inner cylinder is arranged to expel liquid therethrough in a direction substantially perpendicular to the ...

CRIB SHIELD SYSTEM AND OTHER BREATHABLE APPARATUS

An apparatus and method for making same utilizing a breathable mesh material having a reduced suffocation resistance level for infant and toddler use. The breathable mesh material includes an inner and outer fabric that includes larger openings on the front substructure than on the back substructure and a pile substructure is integrated and extends between the front and back substructures allowing air to substantially move effectively therethrough. 1. A crib shield system , suitable for use with a crib , in which the crib includes at least one first side rail , a headboard , and a footboard connected and sized for receiving a mattress therein , wherein at least one of at least one side rail , headboard , and footboard comprises a top bar and a plurality of spaced support elements , the crib shield system comprising:a padded rail cover structured and arranged to cover the top bar.2. The crib shield system of claim 1 , wherein the padded rail cover further comprises a mesh-type material having openings too small to permit an infant to insert a figure or toe therethrough.3. The crib shield system of claim 1 , further comprising:a panel configured to cover at least a substantial portion of a corresponding side rail or headboard or footboard with a mesh-type material having openings too small to permit an infant to insert a figure or toe therethrough.4. The crib shield system of claim 1 , further comprising at least one fastening apparatus to secure the padded rail cover to the top bar.5. The crib shield system of claim 4 , wherein the at least one of the fastening apparatus is selected from the group consisting of hook and loop claim 4 , snaps claim 4 , buttons/buttonholes claim 4 , ties claim 4 , straps claim 4 , buckles claim 4 , and zippers.6. The crib shield system of claim 2 , wherein the mesh-type material of the rail cover comprises a breathable integrated padded mesh material.7. The crib shield system of claim 2 , wherein the mesh-type material of the rail cover ...

SURFACE CLEANING APPARATUS

A surface cleaning apparatus is described including a housing supporting a suction source, a dirt collection container, and a cyclonic separation device for separating dirt from the airflow passing through the apparatus. The apparatus further includes a ducting member having an inlet in communication with an outlet from the cyclonic separation device and an outlet in communication with a passage leading to the suction source. The ducting member is removably connected to the housing or the dirt collection container and is rotatably moveable between locked and unlocked positions, and rotational movement of the ducting member from its unlocked position to its locked position aligns the outlet of the ducting member with the passage leading to the suction source. 1. A surface cleaning apparatus comprising: a suction source;', 'a dirt collection container; and', 'a cyclonic separation device for separating dirt from the airflow passing through the apparatus; and, 'a housing supporting'}a ducting member having an inlet in communication with an outlet from the cyclonic separation device and an outlet in communication with a passage leading to the suction source,wherein the ducting member is removably connected to the housing or the dirt collection container and is rotatably moveable between locked and unlocked positions, and wherein rotational movement of the ducting member from its unlocked position to its locked position aligns the outlet of the ducting member with the passage leading to the suction source.2. An apparatus according to wherein the ducting member has a peripheral wall with the outlet thereof positioned in said peripheral wall.3. An apparatus according to wherein the ducting member includes a passage connecting its inlet to its outlet.4. An apparatus according to wherein the ducting member is substantially cylindrical.5. An apparatus according to wherein the ducting member is received in an end of the dirt collection container.6. An apparatus according to ...

A TOOL FOR A SURFACE CLEANING APPARATUS

A tool for a surface cleaning apparatus includes a floor head, a connecting member for connecting the tool to a surface cleaning apparatus, and a passage for carrying dirt-laden air from the floor head to the apparatus. The floor head and connecting member are pivotally connected to each other about an axis A, the connecting member includes an articulated joint having first and second parts which are pivotable relative to each other about an axis B. Axis B extends transversely to axis A. The tool includes an electrical cable passage through which electrical cables may extend to provide an electric connection between the apparatus and an electrical component in the floor head. 1. A tool for a surface cleaning apparatus , including:a floor head;a connecting member configured to connect the tool to the surface cleaning apparatus; anda passage for carrying dirt-laden air from the floor head to the apparatus,wherein the floor head and the connecting member are pivotally connected to each other about an axis A,wherein the connecting member includes an articulated joint having first and second parts which are pivotable relative to each other about an axis B, wherein axis B extends transversely to axis A,wherein the tool includes an electrical cable passage through which electrical cables may extend to provide an electric connection between the apparatus and an electrical component in the floor head,wherein a first part of the electrical cable passage is provided in or by the first part of the articulated joint, and wherein the first part of the electrical cable passage terminates at an opening which is positioned above the axis B and which opening extends upwardly away from the floor head, said opening communicating with a second part of the electrical cable passage which is provided by the second part of the articulated joint, wherein the opening and a portion of the first part of the electrical cable passage adjacent the opening are positioned in substantially the same ...

EXTRACTING INERTIAL INFORMATION FROM NONLINEAR PERIODIC SIGNALS

Systems and methods are described herein for extracting inertial information from nonlinear periodic signals. A system for determining an inertial parameter can include circuitry configured for receiving a first periodic analog signal from a first sensor that is responsive to motion of a proof mass, converting the first periodic analog signal to a first periodic digital signal, determining a result of trigonometrically inverting a quantity, the quantity based on the first periodic digital signal, and determining the inertial parameter based on the result. 1. A method for determining an inertial parameter , comprising:receiving a first periodic analog signal from a first sensor that is responsive to motion of a proof mass;converting the first periodic analog signal to a first periodic digital signal;determining a result of trigonometrically inverting a quantity, the quantity based on the first periodic digital signal; anddetermining the inertial parameter based on the result.2. The method of claim 1 , wherein the first sensor is a first electrode interacting with the proof mass.3. The method of claim 2 , wherein the first electrode electrostatically interacts with the proof mass.4. The method of claim 1 , wherein:the inertial parameter comprises a displacement of the proof mass; anddetermining the inertial parameter comprises multiplying the unwrapped inverted signal by a geometric dimension to obtain the displacement of the proof mass.5. The method of claim 1 , further comprising unwrapping the result claim 1 , and wherein determining the inertial parameter based on the result comprises determining the inertial parameter based on the unwrapped result.6. The method of claim 1 , further comprising conditioning the first periodic digital signal by:scaling the first periodic digital signal to a predetermined amplitude; andoffsetting the first periodic digital signal;wherein the quantity is based on the conditioned first periodic digital signal.7. The method of claim 1 , ...

SYSTEMS AND METHODS FOR EXTRACTING SYSTEM PARAMETERS FROM NONLINEAR PERIODIC SIGNALS FROM SENSORS

Systems and methods are disclosed herein for extracting system parameters from nonlinear periodic signals from sensors. A sensor such as an inertial device includes a first structure and a second structure that is springedly coupled to the first structure. The sensor is configured to generate an output voltage based on a current between the first and second structures. Monotonic motion of the second structure relative to the first structure causes a reversal in direction of the current. 130-. (canceled)31. An inertial device , comprising:a fixed element comprising a first plurality of beams that are spaced along a first axis;a first plurality of teeth, adjacent teeth of which are equally spaced along a second axis perpendicular to the first axis, each of the first plurality of teeth disposed on a respective beam of the first plurality of beams;a moveable element comprising a second plurality of beams that are spaced along the first axis, the moveable element configured to move relative to the fixed element along the second axis;a second plurality of teeth, adjacent teeth of which are equally spaced along the second axis, each of the second plurality of teeth disposed on a respective beam of the second plurality of beams; and generate an output signal based on a capacitance between the fixed and movable elements,', 'determine time intervals based on comparing the output signal to a threshold, and', 'determine an acceleration of the inertial device based on the time intervals., 'circuitry configured to32. The inertial device of claim 31 , further comprising:a voltage source configured to apply a constant voltage between the fixed and moveable elements; anda drive unit configured to drive the moveable element in oscillatory motion relative to the fixed element; andwherein the oscillatory motion of the moveable element relative to the fixed element results in oscillations in the capacitance.33. The inertial device of claim 32 , wherein:acceleration of the inertial ...

EXTRACTING INERTIAL INFORMATION FROM NONLINEAR PERIODIC SIGNALS

Systems and methods are described herein for extracting inertial information from nonlinear periodic signals. A system for determining an inertial parameter can include circuitry configured for receiving first and second analog signals from first and second sensors, each sensor responsive to motion of a proof mass. The system can include circuitry configured for determining a difference between the first and second analog signals, determining a plurality of timestamps corresponding to times at which the difference crosses a threshold, and determining a plurality of time intervals based on the timestamp. The system can include circuitry configured for determining a result of applying a trigonometric function to a quantity, the quantity based on the plurality of time intervals and determining the inertial parameter based on the result. 1. A method for determining an inertial parameter , comprising:receiving first and second analog signals from first and second sensors, each sensor responsive to motion of a proof mass;determining a difference between the first and second analog signals;determining a plurality of timestamps corresponding to times at which the difference crosses a threshold;determining a plurality of time intervals based on the timestamp;determining a result of applying a trigonometric function to a quantity, the quantity based on the plurality of time intervals; anddetermining the inertial parameter based on the result.2. The method of claim 1 , wherein the first and second sensors are first and second electrodes claim 1 , respectively claim 1 , each interacting with the proof mass.3. The method of claim 2 , wherein the first and second electrodes electrostatically interact with the proof mass.4. The method of claim 1 , wherein determining the difference comprises amplifying the difference between the first and second analog signals to an analog voltage.5. The method of claim 1 , wherein the quantity comprises a first quotient of two of the time ...

Crib shield system and other breathable apparatus

An apparatus and method for making same utilizing a breathable mesh material having a reduced suffocation resistance level for infant and toddler use. The breathable mesh material includes an inner and outer fabric that includes larger openings on the front substructure than on the back substructure and a pile substructure is integrated and extends between the front and back substructures allowing air to substantially move effectively therethrough.

Systems and Methods for Determining Rotation from Nonlinear Periodic Signals

Systems and methods are disclosed herein for determining rotation. A gyroscope includes a drive frame and a base, the drive frame springedly coupled to the base. The gyroscope includes a drive structure configured for causing a drive frame to oscillate along a first axis. The gyroscope includes a sense mass springedly coupled to the drive frame. The gyroscope includes a sense mass sense structure configured for measuring a displacement of the sense mass along a second axis orthogonal to the first axis. The gyroscope includes measurement circuitry configured for determining a velocity of the drive frame, extracting a Coriolis component from the measured displacement, and determining, based on the determined velocity and extracted Coriolis component, a rotation rate of the gyroscope. 1. A gyroscope for determining a rotation rate , comprising:a drive frame springedly coupled to a base of the gyroscope;a drive structure configured for causing a drive frame of the gyroscope to oscillate; and determining an amplitude of the oscillation of the drive frame,', 'comparing the amplitude to a setpoint, and', 'adjusting the oscillation of the drive frame based on the comparing of the amplitude and the setpoint., 'control circuitry configured for2. The gyroscope of claim 1 , wherein the control circuitry is configured for determining the amplitude by:measuring an analog signal corresponding to displacement of the drive frame;converting the analog signal to a voltage;determining times at which the voltage crosses a threshold; anddetermining, based on the times, the amplitude.3. The gyroscope of claim 2 , wherein the control circuitry comprises a digital controller configured for adjusting the oscillation.4. The gyroscope of claim 2 , wherein the control circuitry comprises a transimpedance amplifier configured for converting the analog signal to the voltage.5. The gyroscope of claim 4 , wherein the control circuitry is configured for adjusting the oscillation by adjusting a ...

Systems and Methods for Determining Rotation from Nonlinear Periodic Signals

Systems and methods are disclosed herein for determining rotation. A gyroscope includes a drive frame and a base, the drive frame springedly coupled to the base. The gyroscope includes a drive structure configured for causing a drive frame to oscillate along a first axis. The gyroscope includes a sense mass springedly coupled to the drive frame. The gyroscope includes a sense mass sense structure configured for measuring a displacement of the sense mass along a second axis orthogonal to the first axis. The gyroscope includes measurement circuitry configured for determining a velocity of the drive frame, extracting a Coriolis component from the measured displacement, and determining, based on the determined velocity and extracted Coriolis component, a rotation rate of the gyroscope. 1. A gyroscope for determining a rotation rate , the gyroscope comprising:a drive frame springedly coupled to a base of the gyroscope;a drive structure configured for causing a drive frame to oscillate with respect to a first axis;a sense mass springedly coupled to the drive frame;a sense mass sense structure configured for measuring a displacement of the sense mass along a second axis orthogonal to the first axis; and determining a velocity of the drive frame,', 'extracting a Coriolis component from the measured displacement, and', 'determining, based on the determined velocity and extracted Coriolis component, the rotation rate., 'measurement circuitry configured for2. The gyroscope of claim 1 , wherein the drive frame oscillates along the first axis.3. The gyroscope of claim 1 , wherein the drive frame oscillates rotationally about the first axis.4. The gyroscope of claim 1 , wherein the sense mass is springedly coupled to the base.5. The gyroscope of claim 1 , wherein the measurement circuitry is further configured for extracting a quadrature component from the measured displacement.6. The gyroscope of claim 5 , wherein the measurement circuitry is configured for extracting the ...

SYSTEMS AND METHODS FOR EXTRACTING SYSTEM PARAMETERS FROM NONLINEAR PERIODIC SIGNALS FROM SENSORS

Systems and methods are disclosed herein for extracting system parameters from nonlinear periodic signals from sensors. A sensor such as an inertial device includes a first structure and a second structure that is springedly coupled to the first structure. The sensor is configured to generate an output voltage based on a current between the first and second structures. Monotonic motion of the second structure relative to the first structure causes a reversal in direction of the current. 1. An inertial device , comprising:a first structure;a second structure that is configured to move relative to the first structure;a sensor configured to generate an output voltage based on a current between the first and second structures; andwherein monotonic motion of the second structure relative to the first structure causes a reversal in direction of the current.2. The inertial device of claim 1 , wherein the second structure is springedly coupled to the first structure.3. The inertial device of claim 1 , further comprising a drive unit configured to oscillate the second structure relative to the first structure.4. The inertial device of claim 1 , wherein:the first structure comprises a first plurality of equally spaced sub-structures;the second structure comprises a second plurality of equally spaced sub-structures; andthe inertial device comprises an output unit configured to output, based on the output voltage, an output signal indicating an external perturbation acting on the inertial device.5. The inertial device of claim 4 , wherein:motion of a first sub-structure of the first plurality of equally spaced sub-structures past an aligned position with a second sub-structure of the second plurality of equally spaced sub-structures causes the reversal in direction of the current.6. The inertial device of claim 4 , wherein:the output signal consists essentially of a first value and a second value; and output the first value as the output signal,', 'receive, from the sensor, the ...

SYSTEMS AND METHODS FOR EXTRACTING SYSTEM PARAMETERS FROM NONLINEAR PERIODIC SIGNALS FROM SENSORS

Systems and methods are disclosed herein for extracting system parameters from nonlinear periodic signals from sensors. A sensor such as an inertial device includes a first structure and a second structure that is springedly coupled to the first structure. The sensor is configured to generate an output voltage based on a current between the first and second structures. Monotonic motion of the second structure relative to the first structure causes a reversal in direction of the current. 1. A method of processing a nonlinear periodic signal from an inertial sensor to determine an inertial parameter of the inertial sensor , the method comprising:receiving a nonlinear periodic input signal from the inertial sensor;converting the nonlinear periodic input signal to a two-valued signal having first and second values;determining first and second transition times between the first and second values;applying a trigonometric function to an argument comprising the first and second transition times to determine a trigonometric result; andextracting an inertial parameter of the inertial sensor from the trigonometric result.2. The method of claim 1 , wherein applying the trigonometric function to the argument comprising the first and second transition times further comprises:determining a first time interval between the first and second transition times; andapplying the trigonometric function to an argument comprising the time interval to determine the trigonometric result.3. The method of claim 1 , wherein receiving the nonlinear periodic input signal comprises:receiving a first nonlinear periodic signal;receiving a second nonlinear periodic signal; andcombining the first and second nonlinear periodic signals to result in the nonlinear periodic input signal.4. The method of claim 1 , wherein converting the nonlinear periodic input signal into the two-valued signal comprises:comparing a value of the nonlinear periodic signal to a threshold;if the value of the nonlinear periodic ...

SYSTEMS AND METHODS FOR EXTRACTING SYSTEM PARAMETERS FROM NONLINEAR PERIODIC SIGNALS FROM SENSORS

Systems and methods are disclosed herein for extracting system parameters from nonlinear periodic signals from sensors. A sensor such as an inertial device includes a first structure and a second structure that is springedly coupled to the first structure. The sensor is configured to generate an output voltage based on a current between the first and second structures. Monotonic motion of the second structure relative to the first structure causes a reversal in direction of the current. 1. An inertial device , comprising:a first structure; relative to the first structure, and', 'primarily along a first axis that is normal to a primary plane of the inertial device;, 'a second structure that is configured to movea sensor configured to generate an output voltage based on a current between the first and second structures; andwherein monotonic motion of the second structure along the first axis causes a reversal in direction of the current.2. The inertial device of claim 1 , wherein the second structure is springedly coupled to the first structure.3. The inertial device of claim 1 , further comprising a drive unit configured to oscillate the second structure relative to the first structure and along the first axis.4. The inertial device of claim 1 , wherein:the first structure comprises a first plurality of sub-structures;the second structure comprises a second plurality of sub-structures; andthe inertial device comprises an output unit configured to output, based on the output voltage, an output signal indicating an external perturbation acting on the inertial device.5. The inertial device of claim 4 , wherein:each of the first plurality of sub-structures has a first length along the second axis; andeach of the second plurality of sub-structures has a second length along the second axis.6. The inertial device of claim 5 , wherein the second length is different than the first length.7. The inertial device of claim 4 , wherein motion of the first plurality of sub- ...

Durable crib shield system

A crib liner constructed of breathable material having a reduced suffocation resistance level for infant and toddler use. In some configurations, the breathable material may include an inner fabric, outer fabric, and a pile substructure between the front and back substructures, thereby allowing air to move effectively therethrough.

POROUS CRIB SHIELD SYSTEM

A crib liner constructed of breathable material having a reduced suffocation resistance level for infant and toddler use. In some configurations, the breathable material may include an inner fabric, outer fabric, and a pile substructure between the front and back substructures, thereby allowing air to move effectively therethrough. 1. A crib shield system , suitable for use with a crib , wherein the crib has a first and second side rail and a first and second endboard; wherein the first and second side rails and first and second endboards are configured for receiving a rectangular-shaped mattress; wherein the crib also includes four corner posts , wherein each corner post is constructed as part of a side rail , an endboard , or both; wherein at least one of the first and second side rails or the first and second endboards has a horizontal top bar and a plurality of vertical spaced support elements , wherein the crib shield system comprises:a mesh body portion, further comprising a first mesh-type material;wherein the mesh body portion comprises approximately 50% or more of a mesh-type material;wherein the first mesh-type material comprises a woven portion with a first size of openings too small to permit an infant to insert a finger or toe there through, andwherein the first mesh-type material comprises a woven portion with a second size of openings too small to permit an infant to insert a finger or toe there through.2. The crib shield system of claim 1 , wherein the woven portion of the first size of openings is integrated with the woven portion of the second size of openings.3. The crib shield system of claim 2 , wherein the woven portion of the first size of openings and the woven portion of the second size of openings are integrated together by weaving.4. The crib shield system of claim 1 , wherein the mesh-type material comprises a woven portion with a third size of openings.5. The crib shield system of claim 1 , wherein the mesh-type material comprises a ...

LAYERED CRIB SHIELD SYSTEM

A crib liner constructed of breathable material having a reduced suffocation resistance level for infant and toddler use. In some configurations, the breathable material may include an inner fabric, outer fabric, and a pile substructure between the front and back substructures, thereby allowing air to move effectively therethrough. 1. A crib shield system , suitable for use with a crib , wherein the crib has a first and second side rail and a first and second endboard; wherein the first and second side rails and first and second endboards are configured for receiving a rectangular-shaped mattress; wherein the crib also includes four corner posts , wherein each corner post is constructed as part of a side rail , an endboard , or both; wherein at least one of the first and second side rails or the first and second endboards has a horizontal top bar and a plurality of vertical spaced support elements , wherein the crib shield system comprises:a mesh body portion;wherein the mesh body portion is comprised of at least a first mesh layer and a second mesh layer;wherein the first mesh layer and the second mesh layer are configured to be substantially the same height and length;wherein the first mesh layer and the second mesh layer are configured to be secured together to form a single panel; andwherein both the first mesh layer and second mesh layer comprise openings too small to permit an infant to insert a finger or toe there through.2. The crib shield system of claim 1 , wherein the mesh body portion further comprises a third mesh layer.3. The crib shield system of claim 2 , wherein the third mesh layer comprises a mesh comprising at least one weave pattern different from the first mesh layer and the second mesh layer.4. The crib shield system of claim 3 , wherein at least one of the mesh layers comprises a front substructure claim 3 , a back substructure claim 3 , and a padding substructure.5. The crib shield system of claim 4 , wherein the padding substructure is ...

REVERSIBLE CRIB SHIELD SYSTEM

A crib liner constructed of breathable material having a reduced suffocation resistance level for infant and toddler use. In some configurations, the breathable material may include an inner fabric, outer fabric, and a pile substructure between the front and back substructures, thereby allowing air to move effectively therethrough. 1. A crib shield system , suitable for use with a crib , wherein the crib has a first and second side rail and a first and second endboard; wherein the first and second side rails and first and second endboards are configured for receiving a rectangular-shaped mattress; wherein the crib also includes four corner posts , wherein each corner post is constructed as part of a side rail , an endboard , or both; wherein at least one of the first and second side rails or the first and second endboards has a horizontal top bar and a plurality of vertical spaced support elements , the crib shield system comprising:a mesh body portion, further comprising a first mesh-type material;wherein the mesh-type material comprises a front layer, a middle layer, and a back layer;wherein the front layer and back layer have different fabric weaves.2. The crib shield system of claim 1 , wherein the mesh body portion further comprises a second mesh-type material.3. The crib shield system of claim 3 , wherein the second mesh-type material has a front layer with a different fabric weave compared with the first mesh-type material.4. The crib shield system of claim 1 , wherein the front layer claim 1 , middle layer claim 1 , and back layer of the mesh-type material are quilt together along at least two integration seams crossing the mesh body portion; wherein the at least two integration seams cross each other to create a pattern in the mesh body portion; and wherein the quilting anchors the middle layer to the front layer and back layer along the at least two integration seams.5. The crib shield system of claim 1 , wherein the mesh body portion further comprises a ...

DURABLE CRIB SHIELD SYSTEM

A crib liner constructed of breathable material having a reduced suffocation resistance level for infant and toddler use. In some configurations, the breathable material may include an inner fabric, outer fabric, and a pile substructure between the front and back substructures, thereby allowing air to move effectively therethrough. 1. A crib shield system , suitable for use with a crib , wherein the crib has a first and second side rail and a first and second endboard; wherein the first and second side rails and first and second endboards are configured for receiving a rectangular-shaped mattress; wherein the crib also includes four corner posts , wherein each corner post is constructed as part of a side rail , an endboard , or both; wherein at least one of the first and second side rails or the first and second endboards has a horizontal top bar and a plurality of vertical spaced support elements , the crib shield system comprising:a mesh body portion, further comprising a first mesh-type material;wherein the first mesh-type material comprises a front layer, a middle layer, and a back layer;wherein the front layer, middle layer, and back layer of the mesh-type material are quilt together along at least two integration seams crossing the mesh body portion;wherein the at least two integration seams cross each other to create a pattern in the mesh body portion; andwherein the quilting anchors the middle layer to the front layer and back layer along the at least two integration seams.2. The crib shield system of claim 1 , wherein the at least two integration seams are generally linear and create a lattice pattern on the mesh body portion.3. The crib shield system of claim 1 , wherein the mesh body portion further comprises a second mesh-type material.4. The crib shield system of claim 3 , wherein the second mesh-type material is integrated with the first mesh-type material along the at least two integration seams.5. The crib shield system of claim 1 , wherein the at ...

Beta voltaic semiconductor photodiode fabricated from a radioisotope

In one preferred embodiment, a semiconductor photodiode is provided which includes a substrate layer fabricated from a Si32 radioisotope of a first type of conductivity material and a thick-field oxide layer formed on the substrate layer. The oxide layer has a selectively patterned area to form an open region on the substrate layer. The semiconductor photodiode further includes a dopant material of a second conductivity material, which is different from the first conductivity material. The dopant material is formed within the open region on the substrate layer to form a photodiode junction. The semiconductor photodiode further includes an enclosure package enclosing the semiconductor diode for containing any radiation from the radioisotope.

Situation awareness system

A situation awareness system includes a plurality of cameras. Each camera acquires a sequence of images of a particular part of an area of interest. There is overlap between the parts so that the system can obtain depth information about objects in the area of interest. An analyzer identifies moving objects in the areas of interest, attributes of the moving objects, and events related to the moving objects. A display device displays the attributed objects and events as annotated graphic elements and alerts.

A tool for a surface cleaning apparatus

A tool 11 for a surface cleaning apparatus comprises a floor head, a connecting member (200, fig 9) for connecting the tool to a surface cleaning apparatus and a passage (203, fig 11) for carrying dirt-laden air from the floor head to the apparatus. The floor head and connecting member are pivotally connected to each other about an axis A and the connecting member includes an articulated joint having first and second parts (201, 202, fig 9) which are pivotable relative to each other about an axis B, wherein axis B extends transversely to axis A. The tool includes an electrical cable passage through which electrical cables (204, fig 10) may extend to provide an electric connection between the apparatus and an electrical component in the floor head, wherein a first part (250, fig 12) of the electrical cable passage is provided in or by the first part of the articulated joint, characterised by the first part of the electrical cable passage terminating at an opening (260, fig 12) which is positioned above the axis B and which opening extends upwardly away from the floor head, said opening communicating with a second part (270, fig 12) of the electrical cable passage which is provided in or by the second part of the articulated joint, wherein the opening and a portion of the first part of the electrical cable passage adjacent the opening are positioned in or substantially in the same plane. Further tools are also disclosed.

An apparatus for generating power responsive to mechanical vibration

A vibrational energy harvesting apparatus comprising: a substrate having a plurality of integral compliant regions; at least two ferromagnetic masses each coupled to a corresponding one or more of the integral compliant regions such that at least one of the ferromagnetic masses moves with respect to the substrate responsive to substrate acceleration, each ferromagnetic mass having an inner magnetic pole disposed such that the inner magnetic poles are separated by a flux gap, wherein the magnetic polarities of the inner magnetic poles on the opposing sides of the flux gap are similar; wherein the inner magnetic poles form a steep flux gradient region in the flux gap; and a coil coupled to the substrate and disposed within the steep flux gradient region where it is exposed to a changing magnetic flux arising from motion of at least one of the ferromagnetic masses with respect to the substrate.

SECURITY ARRANGEMENT FOR A TELECOMMUNICATION CENTER SYSTEM

Crib shield system and other breathable apparatus

A crib shield system includes one or more panels to be used with crib. The panels are formed, at least in part, of a mesh-type material (e.g., an integrated padded mesh material) that includes openings too small to permit an infant to insert a finger or toe therethrough. Further, the integrated padded mesh material may be used with one or more other apparatus (e.g., a blanket, a toy, etc.).

Appartus for Generating Power Responsive to Mechanical Vibration

A vibrational energy harvesting apparatus comprising: a substrate having a plurality of integral compliant regions; at least two ferromagnetic masses each coupled to a corresponding one or more of the integral compliant regions such that at least one of the ferromagnetic masses moves with respect to the substrate responsive to substrate acceleration, each ferromagnetic mass having an inner magnetic pole disposed such that the inner magnetic poles are separated by a gap, wherein the magnetic polarities of the inner magnetic poles on the opposing sides of the gap are similar; wherein the inner magnetic poles form a steep flux gradient region in and around the gap; and a coil coupled to the substrate and disposed within the steep flux gradient region where it is exposed to a changing magnetic flux arising from motion of at least one of the ferromagnetic masses with respect to the substrate.

Smart entrainment atomisation mixing system

A nozzle for injecting a first liquid mass into a stream of second liquid mass flowing within a pipe, comprising a first, outer, cylinder and second, inner, cylinder concentrically arranged about a nozzle axis, securing means for securing the nozzle to a wall of the pipe with the nozzle axis orthogonal to the pipe wall, the nozzle projecting into an interior of the pipe in use, duct means for receiving the first liquid mass and transporting it to the interior of the inner and outer cylinders, the inner cylinder comprising at least one hole arranged to expel liquid therethrough, and the outer cylinder comprising at least one hole arranged to expel liquid therethrough.

Ventilator

Time domain switched analog-to digital converter apparatus and methods

A time domain switching analog-to-digital converter apparatus and methods of utilizing the same. In one implementation, the converter apparatus comprises a carrier signal source, and at least one reference source. The carrier signal is summed with the input signal and the summed modulated signal is fed to a comparator circuit. The comparator is configured detects crossings of the reference level by the modulated waveform thereby generating trigger events. The time period between consecutive trigger events is used to obtain modulated signal deviation due to the input signal thus enabling input signal measurement. Control of the carrier oscillation amplitude and frequency enables real time adjustment of the converter dynamic range and resolution. The use of additional reference signal levels increases sensor frequency response and accuracy. A dual channel converter apparatus enables estimation and removal of common mode noise, thereby improving signal conversion accuracy.

Breathable pillow

An integrated padded mesh material may be used in pillows or pillowcases for improved air flow around a user of the pillow or pillowcase during rest. When used in a pillow, the material may substantially cover the side of the pillow that a user's head rests upon. Other materials, such as mesh and satin materials, may be used to complete construction of the pillow. The pillow may take on familiar shapes, such as a dog. When the integrated padded mesh material is used in a pillowcase the pillowcase may be wrapped around a conventional pillow to increase air flow during rest. The pillowcase may include several layers such as the integrated padded mesh material and an allergy-blocking fabric.

A surface cleaning apparatus

A surface cleaning apparatus including: a housing supporting: a suction source; a cyclonic separator device for separating dirt from dirt- laden air, wherein the cyclonic separator device has an elongate axis (A) which lies in a plane (Q1); a user graspable handle having an elongate axis (C), a passage member for transporting dirt-laden air to the dirt separation device, the passage member having an elongate axis (B), wherein the elongate axis (B) of the passage member and the elongate axis (C) of the user graspable handle lie in a plane (P1), and the elongate axis (A) of the body intersects the plane (P1), and wherein the cyclonic separator device includes: a first separating chamber fluidly connected to the passage member for separating relatively coarse dust or debris from any dirt- laden air received from the passage member; an inlet through which dirt-laden air is drawn into the first dirt separating chamber; a first dirt collection chamber for receiving dirt separated by the first separating chamber; a shroud; an outlet through which cleaner air exits the first separating chamber; a baffle positioned in the first dirt collection chamber which lies in a plane (R1), and wherein, in side view, the plane (Q1) is perpendicular to the vertical and the baffle is positioned above the plane (Q1) such that, in normal use, dirt collected in the first dirt collection chamber reaches the plane (Q1) before the dirt reaches the baffle.

System and method for using flexible circuitry in payment accessories

Systems and methods described herein may comprise RFID data acquisition technology which may be embedded in a fob or tag for use in completing financial transactions. This fob may a self-contained device which includes a transponder and which may be contained on any portable form factor and may comprise flexible circuitry. For instance, the fob may be housed in a wearable transaction instrument, such as a bracelet, ring, wrist band, retractable id, necklace, jewelry charm, lanyard, key ring fob, watch, band, pin, and/or the like. The fob is configured to be used in concert with an RFID reader device.

A tool for a surface cleaning apparatus

A tool (11) for a surface cleaning apparatus (10), is described, including: a floor head (12), a connecting member (200) for connecting the tool (11) to a surface cleaning apparatus (10); and a passage (203) for carrying dirt-laden air from the floor head (12) to the apparatus (10), wherein the floor head (12) and connecting member (200) are pivotally connected to each other about an axis A, wherein the connecting member (200) includes an articulated joint having first (201) and second parts (202) which are pivotable relative to each other about an axis B, wherein axis B extends transversely to axis A, where the tool 11 includes an electrical cable passage through which electrical cables (204, 205) may extend to provide an electric connection between the apparatus (10) and an electrical component in the floor head (12).

Time domain switched analog-to-digital converter apparatus and methods

Cyclonic separator device

Micro-electro-mechanical system (MEMS) and apparatus for generating power responsive to mechanical vibration

A micro-electro-mechanical system (MEMS) power generator employing a plurality of magnetic masses disposed to oscillate on spring elements in a manner that produces an unusually steep flux gradient at one or more conductive coils, thereby harvesting a substantial portion of the available mechanical energy. The energy from ambient mechanical vibration is harvested to produce electrical power sufficient to power individual electronic elements for a variety of low-cost and high-performance distributed sensor systems for medical, automotive, manufacturing, robotics, and household applications.

Apparatus for cleaning a floor surface

An apparatus for cleaning a floor surface including: an upright part including a user graspable handle; a base assembly, connected to the upright part, including a base part having: 5 a first passage with a respective inlet; and a second passage with a respective inlet; a device for effecting movement of the base part between respective first and second conditions; a suction source for providing suction to one or both of the first and second io passages; wherein as the base part is moved between its first and second conditions by the device, the suction provided to one or both of the first and second passages is changed. 8683853_1 (GHMatters) P103555.AU.1 13/02/17 WO 2015/087033 PCT/GB2014/050359 62 22 Figure 1 .RlIR.RTITI ITI= RI-I=I=T tRII 11= 9AI

Systems and methods for extracting system parameters from nonlinear periodic signals from sensors

Systems and methods are disclosed herein for extracting system parameters from nonlinear periodic signals from sensors. A sensor such as an inertial device includes a first structure and a second structure that is springedly coupled to the first structure. The sensor is configured to generate an output voltage based on a current between the first and second structures. Monotonic motion of the second structure relative to the first structure causes a reversal in direction of the current.

Security arrangement for a telecommunications exchange system

A security arrangement for a telecommunications system having two security planes, a plurality of peripherals, a plurality of peripheral communication controllers; and switching arrangements interconnecting the peripheral communication controllers. To determine a faulty security plane, a duplex path is provided between the controllers, and, using this path, a controller automatically performs path checks on one of the security planes. If the plane is found to be not faulty, the controller sends data associated with that plane to the peripheral with which it is in communication.

Energy harvesting system using flow-induced vibrations

A system includes a housing disposed within a fluid having a fluid flow. A first member is located substantially external to the housing and is directly exposed to the fluid flow and lengthwise positioned transverse to the direction of the fluid flow. The first member is configured to vibrate independently of the housing responsive to direct exposure to the fluid flow. A coil is coupled to one end of the first member. The coil is disposed within the housing and shielded from direct fluid flow. A magnet is disposed within the housing separate from and adjacent to the coil. The magnet is shielded from direct fluid flow. Magnetic flux from the magnet induces an electric current through the coil responsive to relative motion between the magnet and the coil caused by vibration of the first member.

Method and system for reconstructing sampled signals

A method reconstructs a signal by sampling the signal using a sampling procedure to obtain an input signal. A consistent set is determined from the input signal including the first elements such that applying the sampling procedure to the first elements results in the input signal. According to the type of the signal, a guiding set is determined including second elements disjoint from the first elements. A reconstruction set including third elements is generated so that the third elements minimize a sum of a first similarity measure of the third elements to the second elements and a second similarity measure of the third elements to the first elements. A transformed signal that minimizes a function on the reconstruction set is determined. A reconstructed signal is rendered so that a third similarity measure of the reconstructed signal to the transformed signal is smaller than a tolerance.

A surface cleaning apparatus

A surface cleaning apparatus for cleaning a surface including: a housing supporting: a suction source; a dirt separation device for separating dirt from dirt-laden air; a dirt separation device including a dirt collection chamber for receiving dirt from the dirt separation device, wherein the dirt collection chamber has an elongate axis (A); a user graspable handle having an elongate axis (C), a passage member for transporting dirt-laden air to the dirt separation device, the passage member having an elongate axis (B); a coupling device moveable between a first position in which detachment of the body from the housing is inhibited and a second position in which detachment of the body is permitted; an actuator member for effecting movement of the coupling device between its first and second positions, wherein the elongate axis (B) of the passage member and the elongate axis (C) of the user graspable handle lie in a plane (P1), and the elongate axis (A) of the dirt collection chamber intersects the plane (P1).

Ventilator

Breathable pillow

An integrated padded mesh material may be used in pillows or pillowcases for improved air flow around a user of the pillow or pillowcase during rest. When used in a pillow, the material may substantially cover the side of the pillow that a user's head rests upon. Other materials, such as mesh and satin materials, may be used to complete construction of the pillow. The pillow may take on familiar shapes, such as a dog. When the integrated padded mesh material is used in a pillowcase the pillowcase may be wrapped around a conventional pillow to increase air flow during rest. The pillowcase may include several layers such as the integrated padded mesh material and an allergy-blocking fabric.

High sensitivity geophone

A geophone including a plurality of ferromagnetic masses (e.g., magnets) disposed to oscillate on one or more compliant elements (e.g., springs) in a manner that produces a steep flux gradient at one or more conductive coils is disclosed. The magnetic masses are positioned with like poles facing each other so as to compress the magnetic field gradient. The coils may be positioned in the flux gap either between the magnets, in close proximity to the magnets, or surrounding the magnets. Vibration measurements may then be detected from the movement of at least one of the magnetic masses.

Surface cleaning apparatus