Powered access platform units

Details Powered access platform units Powered access platform units

1989-05-01

1990-11-06

Chotkowski, Karen J.

Fire escape, ladder, or scaffold

Platform with elevating or lowering means

Operating means on platform

182 63, B66F 1104

Patent

active

049678760

ABSTRACT:
A powered access platform unit having a wheeled base carrying a corner pillar to which is articulated one end of a parallel linkage boom articulated at the other end to the remote corner of a platform structure on the same side of said structure as the side of the base which carries the corner pillar, and a drive unit on the base for raising and lowering the platform structure on the parallel linkage boom by means of an hydraulic ram articulated between the base pillar and the boom.

REFERENCES:
patent: 3043395 (1962-07-01), Volkel
patent: 3332513 (1967-07-01), Wiebe
patent: 3584705 (1971-06-01), Ruegg
patent: 3768591 (1973-10-01), Stucky et al.
patent: 4511015 (1985-04-01), Purdy

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