Device and method to safely elevate stabilize and lower a wheel

Details Device and method to safely elevate stabilize and lower a wheel Device and method to safely elevate stabilize and lower a wheel

1988-03-25

1989-12-12

Marmor, Charles A.

Land vehicles

Wheeled

Occupant propelled type

2803641, 280650, 280657, 280 4317, 297347, B62M 114

Patent

active

048862886

ABSTRACT:
A device and method that will safely elevate a wheel chair to a greater height, hold said wheel chair in a safe elevated position and allow a person confined to said wheel chair to achieve the height of that of a standing person. The feet of the wheel chair are first rotated outward and lowered onto the floor, the wheel chair is then elevated by air pressure to a desired height and locked off for safety. When the wheel chair is being elevated or lowered, it will automatically lock off if the chair becomes unlevel for any reason.

REFERENCES:
patent: Re32242 (1986-09-01), Minnebraker
patent: 2664143 (1953-12-01), LiCalsi
patent: 2790484 (1957-04-01), Pollack
patent: 3103384 (1963-09-01), Zivi
patent: 3618968 (1971-11-01), Greer
patent: 3882949 (1975-05-01), Anderson
patent: 3953054 (1976-04-01), Udden et al.
patent: 3968991 (1976-07-01), Maclaren
patent: 4082349 (1978-04-01), Ballenger

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