Combination folding stair and platform wheelchair lift

Details Combination folding stair and platform wheelchair lift Combination folding stair and platform wheelchair lift

1994-09-30

1995-06-20

Huppert, Michael S.

Material or article handling

Self-loading or unloading vehicles

Loading or unloading by other carrier or mover means, and...

414541, 414921, 105447, 280166, B60R 302

Patent

active

054256151

ABSTRACT:
A combination folding stair and platform wheelchair lift which translates from one configuration to the other depending upon the purpose to be served utilizing a series of panels which form a flat platform or alternatively steps and risers and which reciprocate horizontally on a pair of side rails and which are raised and lowered vertically in a pair of side column frames by a pair of hydraulically driven endless chains.

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patent: 4176999 (1979-12-01), Thorley
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patent: 4556128 (1985-12-01), Thorley et al.
patent: 5224723 (1993-07-01), Hatas
patent: 5316432 (1994-05-01), Smalley et al.
Denver RTD Contract Specification.
Eskridge Multiple Disc Failsafe Brakes brochure, no date.

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