Abstract: An extendable and retractable leg rest includes a first member which is mounted for rotation to a support. A second member supporting a footrest is coupled to the first member and slides relative to the first member as the first and second members rotate, extending away from the first member as the first and second members are rotated into a raised position and retracting toward the first member as the first and second members are rotated into a lowered position. Movement of the second member relative to the first member is driven by a third member coupled to the second member by a gear system.

Abstract: A curb climbing wheelchair system having left and right side attachments are designed to be attached to left and right side portions, respectively, of a standard wheelchair to enable a wheelchair occupant to climb a curb, bump or other obstruction without the aid of another individual. Each attachment includes a ramp extending from a telescoping arm that is designed to be attached, via a clamping system, to one side of the wheelchair. When not in use, the ramps are folded and stowed away on the sides of the wheelchair. During use, the ends of the ramps are placed on the curb to allow the wheelchair occupant to roll up the curb. To retrieve the ramps (now disposed behind the wheelchair), the wheelchair occupant moves the telescoping arms, if necessary with the aid of an attached circular handle, to lift the ramps thus allowing the wheelchair occupant to grab the ramps. The retrieved ramps then are stowed away until needed.

Abstract: A wheelchair frame member that includes a first metallic tube member, a second metallic tube member, and a tubular composite member. First and second end portions of the composite member extend into the first and second metallic tube members. The first and second end portions of the composite members are secured to inner surfaces of the first and second metallic tube members. The end portions of the tubular composite members may be connected to the inner surfaces of the metallic tube members in a variety of different ways. For example, the end portions may be forced radially outward into engagement with the inner surface of the tube members to secure the end portions to the inner surfaces of the tube members.

Abstract: The present invention is directed to a tilt-in-space wheelchair that limits the shift of the center of a gravity of a wheelchair occupant during tilting. The wheelchair comprises a main frame adapted to be supported on a surface by wheels, a seat frame for supporting a occupant, and an arc plate for slidably or rollably supporting the seat frame with respect to the main frame. The arc plate defines a first track and a second track that guide the tilting of the seat frame relative to the frame. The first track and second track may have non-constant curvatures. Further, the first track and second track may be arranged non-concentrically on the arc plate and may have different lengths.

Abstract: A wheelchair fixing apparatus (2) according to the present invention includes belts (21) having connecting members (23) which can be attached to and detached from fixing hardware pieces (3) installed on a floor and winding devices (22) for winding up and accommodating the belts (21) and the winding devices (22) are disposed on the wheelchair (1). Therefore, the fixing hardware pieces (3) to which the belts (21) are connected through the connecting members (23) suffice as the floor-side equipment. Moreover, with this apparatus, a user of the wheelchair can perform the fixing operation by himself/herself. Even when a caretaker performs the operation, the burden on the caretaker in performing the operation can be reduced. Furthermore, the apparatus need not be carried by the caretaker, nor need it be ready in advance in a place where the wheelchair (1) is to be fixed.

Abstract: A wheelchair having a chassis formed from a flat plate folded to define a lower chassis, a chassis back, and an upper chassis. The lower and the upper chassis each have a pair of elongated substantially parallel arms that extend from respective land portions of the chassis. The arms define openings in distal portions for receiving caster wheels. Drive wheels connect to axle mounts that are selectively positioned for track, camber, and height, which axle mounts connect to the chassis back or to the lower chassis for stroller configuration. A seat support attaches to the upper chassis for supporting a person and includes independently adjustable height, longitudinal position relative to a seat back, and angle. A pair of push handles attach to the chassis back.

Abstract: A personal mobility vehicle (PMV) is provided having suspension assemblies located on lateral sides thereof. The suspension assemblies each include a main pivot arm having first and second main-arm-ends, an intermediate portion, and a first wheel connected to the first main-arm-end. The intermediate portion is pivotally connected to one of the lateral sides, with the first main-arm-end and first wheel extending in a first direction from the vehicle frame. A center drive wheel is located on the second main-arm-end of the main pivot arm. A wheel support arm having first and second support-arm-ends and a second wheel connected to the second support arm end is pivotally connected to one of the lateral sides. The first support-arm-end is slidably engaged with the main pivot arm, and the second support-arm-end and the second wheel extend in a second direction, generally opposite the first direction.

Abstract: An upright wheelchair with a chassis (29, 22), a seat (2) arranged pivotably on the chassis (29, 22), which can be pivoted from a substantially horizontal seating position to a substantially vertical standing position during upright motion, and at least one footrest (16) arranged on the chassis (29, 22), which is lowered to the ground in the standing position, is characterised in that when the seat (2) is in the seating position the footrest (16) is inclined at an angle (?) relative to the horizontal (H) and the angle (?) returns to zero during upright motion.

Abstract: A wheel lock apparatus for a wheeled vehicle, said vehicle having a tire, the wheel lock apparatus comprising at least one tooth, wherein the at least one tooth is moveable between a first position, against the tire, and a second position, remote therefrom, such that, in the first position, the at least one tooth is oriented to substantially prevent forward rotation of the tire by engaging the tire, whilst in the second position, the tire is free to rotate.

Abstract: The wheelchair attachments are configured for removable attachment to a wheelchair to facilitate use of the wheelchair by occupants and/or attendants. One attachment is a retractable tray spanning the armrests at the front of the chair when deployed and retracting between the chair structure and a wheel for storage. Another attachment is a series of interchangeably installable handgrips or handles removably installable to the front or back of the chair for use by an attendant. At least some of the various handgrips or handle assemblies provide horizontal and/or vertical adjustment. Yet another attachment is an underseat storage compartment, primarily accessible by an attendant from the back of the chair. All of the various attachments may be installed upon and/or used with a wheelchair independently of one another or in combination with one another, or may be adapted for use with other devices as well.

Abstract: A pushrim with increased surface area and an insert between the wheel and the pushrim. In the preferred embodiment, the cross-section of the pushrim is an elongated circle and the insert is a concave trough made of an elastic material which compressibly fits between the wheel and the rim for convenient installation. Improved pushing is provided by texturing the surface of the insert to provide increased friction. Improved braking is provided by providing a smoother and wider surface on the pushrim.

Abstract: In a bed (home care equipment) 1, based on the switch operation, respective drive units of a head unit 12, a leg unit 13, and a height adjustment unit 14 are actuated by motor units 15a to 15c and actuator units 16a to 16c. The actuation state of the respective drive units are detected by the sensor units 17a to 17c, and a respective-unit-operation control means 21 figures out the actuation state of the drive units based on a detection signal, and stores the performance history of the drive units in the operation history storage unit 22 as operation history information. The operation history information in the operation history storage unit 22 is transmitted to a host computer 4 by a communication unit 7. The host computer 4 processes the received operation history information to data which can be displayed by the animation display, graph display, and accumulated time period display, and transmits thus processed data to a computer 5 etc. which is connected to the host computer 4 through the Internet line.

Abstract: A wheelchair and an examination table is provided wherein there is provided a connector or connector assembly for connecting the wheelchair to the examination table. Once connected to the examination table, the wheelchair and patient sitting therein can be elevated, after which side frames of the wheelchair can be removed in order to facilitate examination of the patient. In addition, once elevated and the side frames removed, with the aid of a movable back that forms a part of the examination table, the back of the wheelchair can be reclined or positioned in various positions to facilitate examination and procedures.

Abstract: An assembly for attachment of a propulsion system to a wheelchair frame includes a clamp which remains fixed to the frame, while an attachment device that enables three dimensions of adjustability permits quick release of a main wheel and the propulsion system (e.g., lever drive, pushrim and motor drive) that propels the main wheel. The clamp includes a first alignment feature, such as a pin. A spring-loaded latch may also be included. The attachment device includes a second alignment feature, such as a hole or slot, configured to mate with the first. To permit alignment for a number of different wheelchair frame geometries, the attachment device is rotatable to provide angular adjustability, structured to permit lengthwise adjustability, and coupled using hardware which provides offset adjustability in a direction generally parallel to the axis of the wheel.

Abstract: Retractable fixtures for use with a wheelchair are disclosed herein. A retractable fixture of one embodiment includes a platform movable between a first position behind the wheelchair and a second position beside the wheelchair. A track having forward and rear ends is beside the wheelchair, and a carriage is configured to travel along the track. The carriage is rotatably coupled to the platform at a front pivot point, and an arm is rotatably coupled to the platform at a rear pivot point. The arm is rotatable about a fixed pivot point. When the platform moves from the first position to the second position, the carriage travels along the track toward the track front end, the platform rotates about the front pivot point in a first direction, and the arm rotates about the fixed pivot point in the first direction.

Abstract: A motion control system for lever propulsion of a wheelchair enables a number of different manipulations at the hand grip of the lever. In some embodiments, as many as five user-controlled operations may be performed without need to remove a hand from the hand grip. A user applies force to the hand grip to initiate the motion lever in its forward and rearward strokes. In addition, the hand grip may be pivoted relative to the lever in order to control a brake. A parking brake mechanism may be provided at the hand grip to apply constant brake force. The direction shifter at the top of the hand grip may be used to shift between forward, neutral and rearward modes of operation. In some embodiments, steering of a front caster wheel is possible by rotating the hand grip. Further along the lever, the power applied per lever stroke is adjustable.

Abstract: A modular wheelchair assembly is adapted to be reconfigured between a fixed angle of tilt, a dynamically adjustable tilt-in-space configuration with the tilt axis being near the user's knees and a dynamically adjustable tilt-in-space configuration with the tilt axis being near the user's center of gravity. The reconfiguration is achieved by modifying a limited number of selectively removable components of the support assembly or the pivot assembly of the wheelchair.

Abstract: The invention relates to a wheelchair provided with a support frame that is suspended on at least a rear wheel and a front wheel by means of a rear and front coupling. At least one coupling comprises means that can shift the support frame with respect to at least one wheel axle, such that a torque can be transmitted to the at least one wheel axle. In particular, the means comprise a lever, one end of which is rotatably connected to the relevant wheel axle and the other end of which is rotatably connected to the support frame. The invention also relates to a coupling mechanism, clearly intended for suspending a wheelchair support frame on a wheel of the wheelchair.

Abstract: A wheelchair which facilitates the storage of retractable leg rests within its side frames. These leg rest are independently able to be in the “stored” or “use” positions and continue to allow the wheelchair frame to be folded. The leg rest members are telescopically mounted to each other and allow for leg length adjustment on this telescopic slide. This leg rest assembly has angle adjustability to suit multiple angles of the occupant's knees for comfort.

Abstract: A wheeled conveyance comprising a chassis (4), support means for a load mounted on the chassis (4), a suspension assembly mounted on the chassis (4), and at least one shock absorber means (38) acting on at least part of the suspension assembly and adapted and arranged to limit tilting of the chassis (4) relative to at least part of the suspension assembly under dynamic load conditions tending to produce such tilting. The suspension assembly comprises spring means (32) and suspension arms pivotably mounted on the chassis (4) and extending in forward and rearward directions in the region of opposite sides of the chassis (4). Each suspension arm has a wheel (16, 26) rotatably mounted at the free end.

Abstract: Improved handles are provided for a wheelchair brake lever and legrest release lever of a wheelchair. Each handle has a first end with a slot for receiving the respective lever, and a second end extending angularly from the first end so as to be nonplanar and noncoaxial with the respective levers. The handles include ribs or textured surfaces for improved tactile feel, and are made of brightly colored material for high visibility. Increased size, feel and visibility of the handles make them easier to locate for a person sitting in the wheelchair.

Abstract: A mounting assembly for attaching auxiliary equipment to a wheelchair includes multiple adjustment features. In the preferred embodiment, different wheelchair widths may be accommodated by utilizing attachment arms that pivot co-axially with a main column of the auxiliary equipment. The mounting assembly preferably includes a pair of arms and a pair of links that extend from the arms. The lengths of the links and the arms may be adjusted by rotation of a rod portion of each arm and each link, but other means for enabling changes in length are possible. The links are preferably pivotally connected to the arms, so that the distance between the ends can be varied on the basis of the particular wheelchair. Ball-and-socket joints are used, but rotatability of the sockets permits flexibility of the orientations of the joints. Additionally, a vernier adjustment effect may be included to permit adjustments in the angle of the main column.

Abstract: A patient transporting device having a mobile IV pole which comprises a wheeled base with an enclosure that substantially covers the wheels and a bumper secured to the enclosure. A pole is coupled to the base, and a plurality of hook or other holders are provided for holding intravenous fluid reservoirs. The pole may include first and second arms that extend substantially vertically upwardly from the base, each arm made up of respective lower, central, and upper telescoping tubular portions. The lower portions of the arms are securely coupled to the base, the upper portions are rigidly interconnected with one another, and the central portions of the first and second arms are rigidly interconnected by a stabilization bar which has a plurality of routing channels therein for routing flexible tubing. An obliquely oriented handle is coupled to the pole and is axially movable along at least a portion of the pole. The IV pole may be provided with an electrical receptacle having a retractable power cord.

Abstract: The present invention relates to a wheelchair suspension that includes a pivoting assembly. The pivoting assembly includes at least two linkages. The pivoting assembly is structured so that the drive assists the wheelchair in traversing obstacles.

Abstract: A retractable bed mechanism is disclosed. The bed mechanism comprises a sitting pad, a sitting back, a leg seat and a base seat interconnected by a plurality of linking rods and two driving means. The driving means drives the linking rods so as to drive the sitting pad, the sitting back and the leg seat so as to provide various sitting or laying or upright position to the user which facilitates face to face conversation or accessible to objects or other activities.

Abstract: A removable handle assembly for use with a wheel chair includes a pair of elongate tubular members each having a longitudinally extending passage therein extending along the elongate axis of the tubular member. A first end of each of the tubular members is movable relative to each other to permit adjustment of the tubular members relative to each other along their elongate axes. A mount is positioned adjacent a second end of each of the elongate tubular members opposite the first end. Each mount has an open face thereon configured to receive, engage and grip one side of the tubular rearwardly extending handles of the wheel chair when positioned into engagement therewith. A stretchable flexible cord is also positioned adjacent each mount and the ends of each cord are attached to the second ends of each of the tubular members.

Abstract: A wheelchair has a frame with rails and wheels. An accessory is adapted to be removably coupled to a rail. The accessory has a short downwardly extending cylindrical projection. A coupling assembly extends between the accessory and the frame. The coupling assembly includes a bottom subassembly. The bottom subassembly is adapted to encompass a rail. The rail has a vertically extending lower component. The lower component has a cylindrical vertical recess. The coupling assembly also includes an extension subassembly. The extension subassembly is provided between the bottom subassembly and the accessory. A supplemental cylindrical recess is provided in the accessory above its projection. The recess is adapted to receive a supplemental component.

Abstract: A self-propelled vehicle comprises a frame and a platform pivotally mountable to a rear portion of the vehicle frame. The platform is pivotally movable between a first position in which the platform extends generally horizontally from the rear portion of the frame to support a rider during operation of the vehicle, and a second position in which the platform is removably secured in a generally upright position-adjacent the rear portion of the frame to enable walk-behind operation of the vehicle.

Abstract: A safety device for a wheelchair, or similar device, is disclosed. The device is a wheel assembly directed to preventing rearward movement of the device when the person exits or enters the device thus preventing potential accidents.

Abstract: An apparatus for securing a cushion to the lower leg cradles of a wheelchair. The apparatus includes a rectangular back section that rests against the leg cradles, and is easily secured to a wheelchair by mounting straps and footrest straps. Adjustable holding straps are positioned along the edges of the apparatus to secure a leg cushion of variable size between a passenger's calves and the back section. The apparatus can also be stored on back steering handles of a wheelchair by using the footrest straps as hangers.

Abstract: A bridge that is attached to a wheelchair such that the bridge allows a wheelchair user to have support for ingress into and egress from the wheelchair without assistance and without the need to rely primarily on arm strength alone. The bridge is a generally L-shaped member that has a pair of aligned slits located on a lower portion thereof such that respective connection members pass through each slit and attach the bridge to a frame of the wheelchair the connection members allowing the bridge to be pivoted out of the way when needed.

Abstract: An automatically engageable and releasable brake apparatus adaptable to be attached to a wheelchair is provided, including a connection mechanism adapted to be positioned on a rear frame portion of the wheelchair frame, a seat actuation member adapted to be positioned on the wheelchair seat, a brake actuating member coupled to the connection mechanism and in fluid communication with the seat actuation member defining a closed fluid system therewith, and a brake member coupled to the brake actuating member and adapted to contact a ground surface on which the wheelchair is located. Occupational ingress into the wheelchair causes fluid to flow from the seat actuation member to the brake actuating member, which causes the brake member to move from a first position in substantial contact with the ground surface on which the wheelchair is located to a second position spaced a distance above the ground surface.

Abstract: Attachments for a manual wheelchair are provided for navigating a wheelchair over obstacles and uneven terrain, such as a typical curb on a street. The attachments provide for regulating the movement of the wheelchair as the wheelchair descends the curb and to prevent the wheelchair from flipping over during such movement. The attachments include a front caster wheel slider assembly on each side of the wheelchair, a follower wheel assembly and a track belt damping bar. The front caster wheel slider assembly includes a piston that will quickly push the front caster wheels down after they roll over the top edge of the curb. The follower wheel assembly acts a sensor that will release the piston in the assembly after the front caster wheels roll over the top edge of the curb. As the back wheels of the wheelchair roll over and down the curb, the track belt damping bar slows the descent of the wheelchair.

Abstract: A wheelchair swing away system for providing a wheelchair operator multiple joystick control locations. The wheelchair swing away system includes a first mounting rod attached to a wheel chair by a mounting bracket, a second mounting rod rotatably connected to the first mounting rod through a first pivot pin and a control mount rotatably connected to the second mounting rod through a second pivot pin. The mounting bracket attaches to existing structure of the wheelchair and allows the first mounting rod to slide and rotate within the mounting bracket. The second mounting rod is comprised of a second rod that is rotatably connected to a first rod, with the rods fixed together by a fastener when a desired orientation is obtained.

Abstract: A wheelchair footrest is provided having a footrest support member and a socket receptacle connected thereto. A swivel element is adjustably received for rotation within the socket receptacle. A foot plate is connected to the swivel element by a foot plate support member. The position of the swivel element is rotatably adjustable relative to the socket receptacle in yaw, pitch and roll directions. The swivel element has a socket engaging surface forming a portion of a sphere and the socket receptacle has an interior surface sized and shaped to mate with the socket engaging surface. The socket receptacle and the swivel element are fabricated from ferrous metals, and at least the interior surface of the socket receptacle and the socket engaging surface of the swivel element are subjected to a ferritic nitrocarburization surface treatment process.

Abstract: A stand-up wheelchair with a chassis, at which two drive wheels and at least a one guidable wheel is fastened, on which a stand-up unit with a seating surface, a backrest and at least one tiltable footrest is arranged, whereby reciprocally underneath the seating surface an upper longitudinal rail and a lower longitudinal rail are arranged, the upper longitudinal rail is firmly connected with the seating surface and both longitudinal rails are connected over four hinge points with their rear ends connected with a backrest, characterized by the fact that the rear ends of the longitudinal rails show a slot, in which the backrest can be longitudinally adjusted with their lower ends.

Abstract: A hand rim assembly to be installed on a wheel rim. The assembly includes a ring member having a base portion, a hand rim portion and a web portion interconnecting the base portion and the hand rim portion. Also provided are a plurality of securing members. The ring member is arranged concentrically with respect to the wheel rim such that the base portion of the ring member engages with a first side surface of the wheel rim. Each securing member includes a first portion arranged to engage with a second opposed side surface of the wheel rim and a second portion arranged to be secured to the base portion of the ring member such that the ring member is secured relative to the wheel rim.

Abstract: The present invention provides a kit for attaching a manually operated wheelchair to a motorized scooter having a seating apparatus and supporting structure and a floor, comprising: (a) a motorized scooter attachment angle iron, wherein the angle iron comprises: (i) a vertical wall; and (ii) a horizontal wall, the horizontal wall forming approximately a right angle to the vertical wall, wherein the horizontal wall has at least two embedded elongated slots; (b) an angle iron attachment adjustable bar, wherein the adjustable bar comprises (i) a left elbow shaped tubular segment having a horizontally oriented bottom end and a vertically oriented top end; (ii) a right elbow shaped tubular segment having a horizontally oriented bottom end and a vertically oriented top end; and (iii) a straight middle tubular segment having a diameter larger than the left segment and the right segment, so as to permit the left segment to insert into a left end of the middle tubular segment and so as to permit the right segment to i

Abstract: The present invention provides an improved wheelchair—comprising a chassis, which has a lower chassis section pivotally connected to an upper chassis section, such that the upper chassis section can pivot in relation to the lower chassis section about a substantially horizontal axis;—where said lower section comprises two substantially parallel load carrying members, oriented in a direction parallel to the intended travelling direction of the wheelchair;—where the load carrying members are spaced in a direction perpendicular to the travelling direction by at least one transverse member;—where means are provided for detachably mounting rear wheels where the transverse member intersects each of the load carrying members;—and where close to, or as a part of, the mechanism pivotally connecting the upper and lower section, means are provided for attaching front wheels, said wheel mounting being pivotable about a vertical axle;—where means are provided for slidingly attaching a seat to the upper chassis section, sa

Abstract: A wheelchair station is provided for a wheelchair. The station system includes motors, gears, and other heavy devices so the wheelchair itself can remain relatively light in weight. When the wheelchair is backed into the wheelchair station and engages, the occupant can elevate his or her feet by devices in the wheelchair station; the occupant can also operate reclining mechanisms. The wheelchair is designed so its backrest can nest into the backrest of the back of the wheelchair station; the backrests will pivot to recline together. A tipping means is also provided so the entire wheelchair station, including the wheelchair and its occupant, can be tilted backwards while the occupant is in the supine position, to elevate the feet higher than the head. The system is useful for therapeutic purposes, to elevate the legs, to relieve the accumulation of fluid in the legs, to aid blood circulation, and for relieving stress on the back and neck.

Abstract: A side frame assembly for an electric wheelchair suspension includes a supporting frame unit with a rider-supporting frame, a front caster frame, an upper link having a front end connected pivotally to the front caster frame, and a lower link disposed under the upper link and having a front end connected pivotally to the front caster frame. A drive wheel frame has a front lower end connected pivotally to a pivot portion of the supporting frame unit. A connecting frame has an upper pivot portion connected pivotally to a rear end of the upper link, a lower pivot portion connected pivotally to a rear end of the lower link, and a rear pivot portion connected pivotally to the rear upper end of the drive wheel frame.

Abstract: An adjustable matrix wheelchair seat can be mounted on a pair of rods such as are provided on the seat rails of a typical wheelchair or on any pair of rods adapted to be rigidly fixed to and aligned in a longitudinal direction relative to the frame of the wheelchair. A lateral array of spaced apart substantially inelastic straps is extended between and engaged on the rods. A longitudinal array of spaced apart substantially inelastic straps is engaged on the forwardmost and rearwardmost straps of the lateral array. The longitudinal array traverses the lateral array to define a horizontal matrix of ventilating interstices. The length of any or all of the straps of the lateral and horizontal arrays is independently adjustable to permit alteration of the pressure pattern imposed on the arrays by the patient occupying the seat.

Abstract: The present invention relates to a device for controlling a brake (11) of a wheeled walking frame (10) provided with a handle (12), including a control device (25) movably connected to the brake (11) via a connector (24) for controlling the braking effect using hand power, the control device (25) being displaceable between an idle position without braking effect and at least one braking position for braking effect. The control device (25) is movably connected to a cover (23) of the handle (12), which cover (23) is designed for receiving and partially encasing the control device (25), the control device (25) being, in the idle position, at least partially retracted into the cover (23) so that the cover (23) and the control device (25) form the handle (25). Furthermore, the control device (25) is displaceable from the idle position further into the cover (23) to the braking position while effecting the connector (24).

Abstract: The invention relates to a legrest for a wheelchair, provided with a footrest and a calfrest. In a first, supporting position (ready for use), this footrest and calfrest are designed for supporting at least a part of a leg of a user seated during use in the wheelchair. The calfrest can be moved to a non-supporting, second position (ready for transfer), wherein the calfrest is located outside the space which is occupied by the legs of a wheelchair user upon sitting down in and/or rising from the wheelchair. The pivotal direction of the calfrest is then such that the path of travel between said first and second position is located substantially outside the space occupied by the legs of the wheelchair user in the first, supporting position.

Abstract: A controller module for a wheelchair automatically, automatedly adjusts position of the wheelchair seat with respect to the wheelchair base. The wheelchair seat is pivotally connected to the wheelchair base, and the seat is moveable with respect to the base by a powered actuator. The controller module includes a microprocessor connected to the powered actuator. The microprocessor controls operation of the powered actuator, such as by varying power to the actuator. A sensor, such as a 3-axis sensor, is connected to the microprocessor. The sensor senses seat position and signals the microprocessor of the position. The microprocessor performs a programmed sequence, to periodically adjust the seat position when the wheelchair seat is occupied. The signal from the sensor is feedback to the microprocessor for operations according to the programmed sequence. The controller module includes interfaces for use in making selections among options for the programmed sequence.

Abstract: A controller module for a wheelchair automatically, automatedly adjusts position of the wheelchair seat with respect to the wheelchair base. The wheelchair seat is pivotally connected to the wheelchair base, and the seat is moveable with respect to the base by a powered actuator. The controller module includes a microprocessor connected to the powered actuator. The microprocessor controls operation of the powered actuator, such as by varying power to the actuator. A sensor, such as a 3-axis sensor, is connected to the microprocessor. The sensor senses seat position and signals the microprocessor of the position. The microprocessor performs a programmed sequence, to periodically adjust the seat position when the wheelchair seat is occupied. The signal from the sensor is feedback to the microprocessor for operations according to the programmed sequence. The controller module includes interfaces for use in making selections among options for the programmed sequence.

Abstract: An articulating leg rest is provided having a first member pivotally connected to a base frame. The base frame may be either connected to or part of a wheelchair frame. A second member is telescopically received by the first member. A drive system includes a motor-driven lead screw. First and second housings each have internally threaded portions engaged with the lead screw. A link connects the first housing to the base frame. The second housing engages the second member. Rotation of the lead screw advances the first housing along the lead screw, moving the link and causing the first and second members to rotate relative to the base frame. Rotation of the lead screw also advances the second housing along the lead screw, causing the second housing to linearly translate the second member relative to the first member.

Abstract: A child transport air filtering system comprising: a child transport device; an air filtering device removeably coupled to the child transport device; a power supply removeably coupled to the child transport device, and removeably coupled to the air filtering device.

Abstract: An extendable and retractable leg rest includes a first member which is mounted for rotation to a support. A second member supporting a footrest is coupled to the first member and slides relative to the first member as the first and second members rotate, extending away from the first member as the first and second members are rotated into a raised position and retracting toward the first member as the first and second members are rotated into a lowered position. Movement of the second member relative to the first member is driven by a third member coupled to the second member by a gear system.

Abstract: A foldable wheelchair comprises a substantially horizontally extending upper side frame member. An upper end of an axle plate is secured to the upper side frame member. An axle housing is secured to the axle plate. A cross brace is pivotally secured directly to the axle plate at the lower end of the axle plate. A wheel mount assembly comprises an axle sleeve mount having an internal thread. An axle sleeve has an external thread that is in threaded engagement with the internal thread of the axle sleeve mount. The axle sleeve has an internal bore that accepts a wheel axle. The internal bore is angled with respect to the axis of the external threads to provide camber to a wheel. The axle sleeve is adapted to provide lateral adjustment to the wheel by rotating the axle sleeve within the axle sleeve mount any number of complete revolutions.