Guide rail for stairlifts

Details Guide rail for stairlifts Guide rail for stairlifts

2008-01-29

2008-01-29

Bidwell, James R. (Department: 3651)

Conveyors: power-driven

Conveyor section

Endless conveyor having means for suspending load

C104S093000, C187S201000

Reexamination Certificate

active

07322461

ABSTRACT:
The present invention provides a stairlift rail of non-circular cross-section. The wall surfaces of the rail define a single internal cavity and the outer surface of the rail is free of additional members added to the rail in order to prevent rotation of a stairlift carriage about the rail axis.

REFERENCES:
patent: 3966022 (1976-06-01), Cheney
patent: 4602567 (1986-07-01), Hedstrom
patent: 6170642 (2001-01-01), Galan et al.
patent: 6446560 (2002-09-01), Slocum
patent: 6755136 (2004-06-01), Jenkins
patent: 6758325 (2004-07-01), Greeley
patent: 2006/0185937 (2006-08-01), Caroen et al.
patent: 0560433 (1993-09-01), None
patent: 0881188 (1998-12-01), None
patent: 1002545 (1997-03-01), None

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