Stairway chairlift device

Details Stairway chairlift device Stairway chairlift device

1991-11-13

1993-07-27

Olszewski, Robert P.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 19, B66B 908, B66B 1104

Patent

active

052304051

ABSTRACT:
A stairway chairlift device has a rail incorporating a gear rack, a carriage unit having a motor and gear box which operatively engage the gear rack to provide motion of the chairlift, and a collapsible seat assembly mounted to the carriage unit. The carriage unit also incorporates a battery unit and control circuitry to control operation of the chairlift. The electrical system also incorporates an automatic recharging circuit any time the chairlift is at the bottom or top of the rail. The seat assembly is easily pivoted on a swivel mechanism which permits the seat assembly to be locked in one of three positions--right 90.degree., front or left 90.degree..

REFERENCES:
patent: 56947 (1866-08-01), Jenks
patent: 2507887 (1950-05-01), Cheney
patent: 3966022 (1976-06-01), Cheney
patent: 4913264 (1990-04-01), Voves et al.
patent: 5105914 (1992-04-01), Holden

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