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Wheel Chair Patent

Wheel chair table clamp

A table clamp for removably attaching a table or the like to a wheel chair has vertically positioned hollow body members that engage legs on the table, movable inverted L-shaped members having opposed tabs for engagement against the chair frame are pivoted to the hollow body members.

Wheel chair hoist assembly for vehicles


A wheel chair hoist assembly for a vehicle having a body and a roof comprising a transverse support bar within the body secured to the roof. A mount tube with a depending winch mount bracket is reciprocably and slidably supported upon the support bar. A tubular boom, normally positioned within the body, is parallel to and secured to the mount tube and adapted for sliding projection outwardly of the body. A power winch having a drum is supported on the bracket and includes a cable around the drum guidably projected through the boom with its free end mounting a hook adapted to supportably engage a collapsed wheel chair. A manual switch is connected to a power source to energize the winch to elevate the wheel chair, and the boom is manually projected successively inward transferring the wheel chair into the body.

Foldable wheel chair


In a foldable wheel chair supporting frames for a back, a seat, a pair of back wheels and a pair of front wheels are mutually pivotally connected by means of pivot assemblies positioned at the seat-back junction and comprising a blocking mechanism which is deactuated for releasing the pivotal connection between the supporting frames by turning the seat in a direction of a predetermined reduction of the angular separation between the seat and the back. Each pivot assembly may comprise a pivot pin secured to one supporting frame, and pivot cams secured to the other supporting frames together with an interlocking cam positioned between two of said pivot cams.

Step-climbing wheel chair

An improved step-climbing wheel chair with integral retractable ramps for ascending or descending a step, curb or the like. The conveyance is provided with a two-speed transmission capable of driving the wheel chair on level terrain at conventional speeds or selecting a low speed high torque capability for driving the conveyance up an inclined ramp. The invention further contains a self-leveling chair seat which automatically maintains the occupant in a level seated position regardless of the inclined position assumed by the wheel chair frame, thereby contributing to the stability of the wheel chair and the safety of the occupant.


Cover for a wheel chair grip ring
Wheel chair shampoo apparatus
Wheel chair table clamp
Method for driving wheel-chair

101 4288122 Wheel chair table clamp
102 4281958 Wheel chair hoist assembly for vehicles
103 4280716 Foldable wheel chair
104 4222449 Step-climbing wheel chair
105 4199036 Wheel chair
106 4155468 Vehicle mounted access ramp assembly for wheel chair users
107 4140341 Collapsible wheel chair frame having telescoping posts
108 4133437 Wheel chair lift apparatus
109 4127200 Wheel chair lift device
110 4125269 Recliner-rocker geriatric wheel chair
111 4119163 Curb climbing wheel chair
112 4085946 Wheel chair converter
113 4083594 Wheel chair holding means
114 4082348 Adjustable wheel chair
115 4067409 Wheel chair arrangement
116 4050533 Powered wheel chair
117 4045051 Foldable wheel chair
118 4039199 Wheel chair push rod apparatus
119 3999762 Exercising device for wheel chair confined persons
120 3953054 Hand operated wheel-chair
121 3952822 Electrically powered wheel-chair for indoor and outdoor use
122 3941261 Wheel chair carrying minibus

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