Electric wheelchair frame

Details Electric wheelchair frame Electric wheelchair frame

2007-09-25

2007-09-25

Bottorff, Christopher (Department: 3618)

Motor vehicles

Power

Electric

C180S907000, C280S124100

Reexamination Certificate

active

11187972

ABSTRACT:
An electric wheelchair frame includes a seat brace, a pair of connection rods, a pair of front suspension brackets, a pair of rear suspension brackets, and a pair of resilient members. A front section of either side of the seat brace is pivotally connected to the front suspension bracket. A rear section of either side of the seat brace is pivotally connected to the rear suspension bracket. A rear end of the front suspension bracket and a front end of the rear suspension bracket are pivotally connected to the connection rod, respectively. The resilient member has one end connected to the connection rod and another end connected to the rear suspension bracket.

REFERENCES:
patent: 4840394 (1989-06-01), Bickler
patent: 5540297 (1996-07-01), Meier
patent: 5964473 (1999-10-01), Degonda et al.
patent: 6070898 (2000-06-01), Dickie et al.
patent: 6279927 (2001-08-01), Nishihira et al.
patent: 6312000 (2001-11-01), Pauls et al.
patent: 6454286 (2002-09-01), Hosino
patent: 7040429 (2006-05-01), Molnar
patent: 7066290 (2006-06-01), Fought
patent: 7175193 (2007-02-01), Wu

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