Abstract: A headrest assembly for a motor vehicle has an upright column secured to the vehicle supporting an arm movable between first and second positions with an actuator. An attachment connected to the arm supports a head restraint pad located behind the head of a person seated in a wheelchair in the vehicle operator's position or front vehicle passenger's position.

Abstract: A four wheel stepper bike having a body with an internal chamber containing a drive mechanism for transmitting power to a wheel, a steering linkage, and a brake. Foot pedal units on opposite side of the body are moved by an operator's feet to apply force to the drive mechanism. A steering column with handles hinged to the body and connected to the steering linkage is selectively movable to steer the bike and move between upright and folded positions. Bumpers attached to an end of the body support the bike in an upright position on a support surface when the steering column is in the folded position.

Abstract: A motor vehicle has a frame assembly with a generally flat platform for supporting a wheelchair within the interior compartment of the vehicle. Air cylinders couple the frame assembly to wheel assemblies operate to move the frame assembly to an up vehicle driving position and to a down position wherein the platform engages the vehicle support surface or ground whereby the wheelchair can be moved directly onto the platform.

Abstract: A wheelchair lift and lateral transport apparatus has a lift assembly operable to elevate a platform supporting a wheelchair from a first ground position to a second elevated position adjacent a side of a motor vehicle. A headrest is mounted on the upper end of the lift assembly. A lateral transport assembly mounted on the vehicle floor and secured to the lift assembly operates to move the lift assembly and wheelchair on the platform from the second position to a third position. The lift assembly lowers the platform from the third position onto anchor pins secured to the floor of the vehicle to locate the person in the wheelchair in the vehicle driver's position.

Abstract: A wheelchair lift and lateral transport apparatus has a lift assembly operable to elevate a platform supporting a wheelchair from a first ground position to a second elevated position adjacent a side of a motor vehicle. A headrest is mounted on the upper end of the lift assembly. A lateral transport assembly mounted on the vehicle floor and secured to the lift assembly operates to move the lift assembly and wheelchair on the platform from the second position to a third position. The lift assembly lowers the platform from the third position onto anchor pins secured to the floor of the vehicle to locate the person in the wheelchair in the vehicle driver's position.

Abstract: A person transport wheelchair has a frame assembly with tubular members attached to connectors supporting a seat, a back rest, and a foot rest. A pair of wheels rotatably mounted on an axle secured to the frame assembly movably support the wheelchair on a surface. The connectors have joined parallel tubes and a flange on one tube. The tubular members have ends telescoped into the tubes. The flanges support the seat, back rest and foot rest.

Abstract: A wheelchair has a frame assembly with longitudinal beams having grooves accommodating connecting members that retain the connecting members without welds on the beams. Expansion devices hold the connecting members in fixed positions on the beams. Supports secured to the connecting members are attached to wheels, a back rest, and a foot rest assembly.

Abstract: A wheelchair has a seat assembly with arm rests locked in upright positions and movable to down positions provide lateral access to seat for a person. Electric motors connected to batteries and a motor controller are used to rotate the drive wheels of the wheelchair. Hooks, pulleys, and power transmissions transmit power from the electric motors to the wheels. The entire components of the drive are located within a casing mounted on the frame of the wheelchair.

Abstract: A power transmission has a stationary internal gear surrounding an external gear having a diameter smaller than diameter of the internal gear. The internal gear is mounted on an eccentric joint joined to the power input shaft and is retained in engagement with a segment of the teeth of the internal gear with an arm and roller riding on the internal surface of the external gear. A driven shaft is operatively connected to the external gear with the eccentric and rollers located in holes in a circular flange of the external gear.

Abstract: A watercraft has floats supporting a bicycle-type frame having handlebars connected to a rudder to steer the watercraft. Side boards located on opposite sides of the frame are mounted on cross bars which support the frame on the floats. A chain and sprocket foot operated drive is connected to a shaft journaled to a housing accommodating a power transmission for rotating a propeller. A chain guard is located on opposite sides of the chain connecting the shaft and foot operated drive. The housing is movable between a down location wherein the chain is retained in a tension condition to an up location wherein the chain is in a loose condition.