Chair backrest

Details Chair backrest Chair backrest

2005-09-06

2005-09-06

Cuomo, Peter M. (Department: 3636)

Chairs and seats

Bottom or back with means to alter contour

Providing support for lower back region

C297S230140

Reexamination Certificate

active

06938956

ABSTRACT:
Chair backrest, comprising a support structure (12), an upper backrest member (30) connected in oscillating fashion to said support structure (12), a lower backrest member (32), and a connecting element (80) which is fixed relative to one of said backrest members (32) and able to slide telescopically inside the other backrest member (30), the connecting element (80) having at least one elastically deformable zone (82) and being able to apply an elastic force to said backrest members (30, 32) as a result of a variation in the relative angular position of said backrest members (30, 32).

REFERENCES:
patent: 5112106 (1992-05-01), Asbjornsen et al.
patent: 5228747 (1993-07-01), Greene
patent: 5344211 (1994-09-01), Adat et al.
patent: D359192 (1995-06-01), Franklin, III
patent: 5460427 (1995-10-01), Serber
patent: 5567011 (1996-10-01), Sessini
patent: D401801 (1998-12-01), Zacharkow

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