Chairs and seats – Collapsible chair; i.e. – relatively folding bottom – back,... – Laterally collapsible
Reexamination Certificate
2000-04-28
2001-11-27
Nelson, Jr., Milton (Department: 3636)
Chairs and seats
Collapsible chair; i.e., relatively folding bottom, back,...
Laterally collapsible
C297S016200
Reexamination Certificate
active
06322138
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to foldable chairs, in general, and to a collapsible patio chair especially useful for casual seating, in particular.
2. Description of the Related Art
Folding or collapsible chairs in the nature of furniture have been described in such United States Patents as U.S. Pat. No. 3,635,520 (Roher et al) and U.S. Pat. No. 5,984,406 (Lee). In a multiple seat arrangement, they are also described in U.S. Pat. No. 5,570,928 (Staunton et al). For outdoor use, in camping and watching sports games, chairs of this type have been illustrated in U.S. Pat. No. 5,893,605 (Chang). When a reclining chair is desired for camping, hiking, fishing, and concert events, a construction of the type shown in U.S. Pat. No. 5,882,068 (Levine) is said to be useful.
While chairs of these types may prove adequate to suit their intended purposes, their acceptability depends in large part upon their strength and reliability of operation. In these two areas, the folding chair of the Lee Patent (U.S. Pat. No. 5,984,406) falls somewhat short.
SUMMARY OF THE INVENTION
As will become clear from the following description, the patio chair of the invention consists of a frame including pairs of front crossed legs and rear crossed legs, and two pairs of side crossed legs, with each pair of crossed legs being pivotally connected together where they cross; first and second front pad connectors pivotally connected to lower ends of one of the front crossed legs and one of the side crossed legs, respectively; first and second rear pad connectors pivotally connected to lower ends of one of the rear crossed legs and the other of the side crossed legs, respectively; first and second front connectors pivotally connected to upper ends of the one front crossed leg and the other of the side crossed legs, respectively; first and second rear connectors pivotally connected to upper ends of the rear crossed legs and the one side crossed leg, respectively; a pair of side supports passing through apertures in each of the first and second rear connectors having lower ends fixedly connected to the rear pad connectors; and a fabric liner connected to the first and second front connectors and to upper ends of the pair of side supports.
In accordance with the invention, to provide strength and reliability of operation beyond that characterizing the patented Lee design, the front connectors include a top surface having a notch therein open at one end and slightly larger than the diameter of the front crossed legs when composed as a tubular configuration, a first wall at an underside thereof defining one side of the notch and to which the upper ends of the front crossed legs are pivotally connected and a second wall at the underside, generally perpendicular to the first wall and combined therewith, to which the upper ends of the other of the side crossed legs are also pivotally connected. In like manner, each of the front and rear connector pads (as well as the rear connectors) include the two generally perpendicular walls for fastening with their respective pivotally connected legs while the rear connector pads include apertures at the join of the two walls where the side supports are fixed.
REFERENCES:
patent: 5893605 (1999-04-01), Chang
patent: 5984406 (1999-11-01), Lee
patent: 6231119 (2001-05-01), Zheng
patent: 6237993 (2001-05-01), Zheng
Brodsky Charles I.
Jr. Milton Nelson
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