Overhead service unit

Details Overhead service unit Overhead service unit

1974-04-12

1976-01-27

Blunk, Evon C.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

182 63, 182148, 187 9E, 91412, B66B 1104

Patent

active

039346811

ABSTRACT:
An overhead service unit provided with a base having a fixed frame projecting upwardly therefrom. A series of movable frames are slidably interconnected to each other and to said fixed frame with a platform movably supported on one of said movable frames. A pair of cylinders are mounted on said base and are provided with a pair of rams which are movable in opposite directions to cause a plurality of chains operatively connected to said rams, the fixed and movable frames and platform to raise and lower said movable frames and platform for moving said platform to and from elevated work positions.

REFERENCES:
patent: 2106878 (1938-02-01), Sinclair
patent: 2554930 (1951-05-01), Ulinski
patent: 2883003 (1959-04-01), Arnot
patent: 3016973 (1962-01-01), Williamson
patent: 3143190 (1964-08-01), Knights et al.
patent: 3208556 (1965-09-01), Shaffer
patent: 3252545 (1966-05-01), Quayle
patent: 3394778 (1968-07-01), Brinton
patent: 3587784 (1971-06-01), Tait
patent: 3752261 (1973-08-01), Bushnell

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