Stairlift

Details Stairlift Stairlift

1977-11-08

1979-11-13

Nase, Jeffrey V.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 24, B66B 908

Patent

active

041740238

ABSTRACT:
A stair lift has a load bearing part with a guide rail for extending up one side of a stairway, a lead screw in the guide rail and a corresponding threaded part carried near and co-operating with the lead screw and a motor and/or turning means for rotating the lead screw wherefor no pit needs excavation an electric motor preferably locating at the head of the stairs and a chain and/or platform may span the stairs to another guide rail extending thereup.

REFERENCES:
patent: 2207544 (1940-07-01), Knudsen
patent: 2270735 (1942-01-01), Knudsen
patent: 2856027 (1958-10-01), Schryver
patent: 4050546 (1977-09-01), Wilson, Jr.

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