Highly collapsible ambulatory assistive walker apparatus

Details Highly collapsible ambulatory assistive walker apparatus Highly collapsible ambulatory assistive walker apparatus

2007-12-11

2007-12-11

Ellis, Christopher P. (Department: 3618)

Land vehicles

Wheeled

Coasters

C280S047340, C280S642000, C280S647000

Reexamination Certificate

active

11335896

ABSTRACT:
A walker apparatus comprised of a first front support leg assembly, a second front support leg assembly, a first sliding joint, a second sliding joint, a central hinge joint, a first rear support leg assembly, a second rear support leg assembly, a first support member, a second support member, a front leg collapsing assembly, and a rear leg collapsing assembly. The walker apparatus is adapted to be is collapsed to a compact shape in a continuous collapsing motion.

REFERENCES:
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patent: 5538268 (1996-07-01), Miller
patent: 5887887 (1999-03-01), Keuning
patent: 6099002 (2000-08-01), Uchiyama
patent: 6311708 (2001-11-01), Howle
patent: 6367823 (2002-04-01), Miyagi
patent: 6651994 (2003-11-01), Hallgrimsson et al.
patent: 6688633 (2004-02-01), van't Schip
patent: 7108004 (2006-09-01), Cowie et al.

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