Portable elevator device

Details Portable elevator device Portable elevator device

1981-07-10

1984-01-24

Rolla, Joseph J.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 12, 187 17, 187 24, 187 25, 182148, B66B 920

Patent

active

044270941

ABSTRACT:
This invention is an electrically powered movable elevator device comprised of a base mounted on wheels upon which is mounted a substantially vertical hollow support member through which a screw passes. A support nut attaches to a platform and engages the screw. An electrical control system attached to the platform allows a person standing thereon to be raised or lowered by the rotation of the screw. A reversible electric motor is belt-coupled to the screw which may be made to rotate in either direction, by the electrical control system.

REFERENCES:
patent: 2843430 (1958-07-01), Johnson
patent: 2895567 (1959-07-01), Hall
patent: 3871477 (1975-03-01), Kuest
patent: 4324317 (1982-03-01), Winkelblech

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