Metal frame for chairs with tubular elements

Details Metal frame for chairs with tubular elements Metal frame for chairs with tubular elements

2005-03-08

2005-03-08

Cuomo, Peter M. (Department: 3636)

Chairs and seats

Bottom or back

Framework

C297S448100, C297S449100

Reexamination Certificate

active

06863349

ABSTRACT:
A metal frame for chairs with tubular elements, comprising two inverted U-shaped elements (10), which form the legs, two L-shaped elements (11), which form the support for the seat and the back and are each arranged next to one of the preceding elements, and two rod-like cross-members (12), which are arranged in a lower region so as to join portions of the inverted U-shaped elements and of the L-shaped elements. The cross-members (12) are joined to the other elements by projection welding at a pair of protrusions (13) determined by corresponding recesses (14) in the cross-section, formed by a flattening plastic deformation.

REFERENCES:
patent: 2981319 (1961-04-01), Close
patent: 3057661 (1962-10-01), Moxley
patent: 3159428 (1964-12-01), Schier
patent: 4097089 (1978-06-01), Petersen
patent: 4400031 (1983-08-01), DeDecker
patent: 5224760 (1993-07-01), Gibbs
patent: 6174029 (2001-01-01), Swy
patent: 6523904 (2003-02-01), Vanderminden
patent: A-196 45 671 (1998-05-01), None
patent: A-1 020 112 (1953-02-01), None
patent: A-2 623 701 (1989-06-01), None

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