Stairlift

Details Stairlift Stairlift

2007-01-02

2007-01-02

Matecki, Kathy (Department: 3654)

Elevator, industrial lift truck, or stationary lift for vehicle

Stairway assist for individual or minor barrier lift for...

Mounted adjacent stairway for travel parallel thereto

C187S202000, C104S288000, C104S300000, C254S097000

Reexamination Certificate

active

10519185

ABSTRACT:
A stair lift includes a lift assembly arranged to be driven along a rail. The lift assembly includes a chassis supporting a load bearing member such as a seat. The chassis is formed by a main member on which are mounted a drive assembly and a levelling assembly for maintaining the seat horizontal by altering the orientation of the chassis with respect to the rail as the lift assembly moves along the rail. One or both of the drive and levelling assemblies may be pivotally mounted on the chassis to permit rotation about a vertical axis so as to accommodate bends in the rail.

REFERENCES:
patent: 2507887 (1950-05-01), Cheney
patent: 4913264 (1990-04-01), Voves et al.
patent: 5533594 (1996-07-01), Tremblay et al.
patent: 5908087 (1999-06-01), Johansson
patent: 6679353 (2004-01-01), Muranaka
patent: 3819522 (1989-12-01), None
patent: 0 043 592 (1982-01-01), None

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