Power operated wheelchair ramp

Details Power operated wheelchair ramp Power operated wheelchair ramp

1984-01-31

1985-12-24

Leppink, James A.

Bridges

Gangway, ramp, or dock leveler

Attached

14 695, 105436, E01D 100

Patent

active

045596590

ABSTRACT:
A wheelchair ramp that is recessed in a sidewalk and adapted for elevation to an inclined position to provide a ramp between a step or a transit vehicle and the sidewalk. The plate includes an upwardly extending lip along its forwardmost surface adjacent to the step, and the step includes a downwardly extending, lip-receiving recess to limit upward movement of the plate and to restrain it in position relative to the step. The plate can be elevated by means of a rack and gear arrangement operated by an electric motor controlled by a suitable switch, which can be a remote control switch.

REFERENCES:
patent: 3500486 (1970-03-01), Le Clear
patent: 3628209 (1971-12-01), Parent
patent: 3882563 (1975-05-01), Smith et al.
patent: 3894515 (1975-07-01), Plyler
patent: 3936898 (1976-02-01), Poe
patent: 4084713 (1978-04-01), Rohrs et al.

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