Wheeled work chair

Details Wheeled work chair Wheeled work chair

2007-10-16

2007-10-16

Ellis, Christopher P. (Department: 3618)

Land vehicles

Wheeled

Occupant propelled type

C280S047410, C280S043000, C297S344180

Reexamination Certificate

active

10973763

ABSTRACT:
A wheel work chair has all the attributes and style of an office chair but is equipped with wheelchair-type supporting wheels The chair is height adjustable with the upper portion of the chair moving relative to the lower portion of the chair. Wheels connected to the upper portion of the chair move with the chair seat as the height of the chair is adjusted. Wheels connected to the lower portion of the chair remain on the ground as the height of the chair is adjusted. A static surface is provided on the arm of a height adjustable chair to support the weight of a user while that chair is being raised.

REFERENCES:
patent: 4779881 (1988-10-01), Baker
patent: 5480172 (1996-01-01), James
patent: 6024369 (2000-02-01), Goldstein et al.
patent: 6155583 (2000-12-01), Koike
patent: 6247718 (2001-06-01), Gobbers et al.
patent: 6325399 (2001-12-01), DeMoss
patent: 6419260 (2002-07-01), Kuroda
patent: 6454286 (2002-09-01), Hosino
patent: 6793232 (2004-09-01), Wing
patent: 6916032 (2005-07-01), Wong
patent: 7040641 (2006-05-01), Wing
Series 200 work chair ; Date Unknown; 2 pgs.; www.rvseuroflex.se/runtime/home/html/Produkter/arbetssol%10200.htm.

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