Retractable transit coach step

Details Retractable transit coach step Retractable transit coach step

1976-06-28

1977-05-03

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Automatic control

182 91, 182 96, 280166, 105445, 105447, B60R 300

Patent

active

040209202

ABSTRACT:
A retractable step for mounting on a transit coach utilizes a parallelogram linkage and an hydraulic-pneumatic actuating system which is connected to the movable step member by an off center clevis and lever system to prevent step sagging. Apparatus is provided at the leading edge of the step to immediately stop its outward movement when encountering an immovable object.

REFERENCES:
patent: 790195 (1905-05-01), Elkins
patent: 3039562 (1962-06-01), Wagner
patent: 3670849 (1972-06-01), Milner
patent: 3833240 (1974-09-01), Weiler

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