Chairs and seats – Movable bottom – Bottom and back movable as a unit
Reexamination Certificate
2000-01-19
2001-11-13
Cuomo, Peter M. (Department: 3636)
Chairs and seats
Movable bottom
Bottom and back movable as a unit
C297S344260
Reexamination Certificate
active
06315360
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to chairs and seats and, in particular, to an apparatus for moving the bottom and back of a chair as a unit about a vertical axis.
BACKGROUND OF THE INVENTION
Products which permit beach chairs to be swiveled have been proposed in the past. These products, unfortunately, have not been particularly well adapted for use on unconsolidated ground as is found at a beach. They tend to have narrow supports which slide upon, and sink unevenly into, sand thereby making the swiveling of a chair uncomfortable. A need, therefore, exists for a swivel apparatus which will provide maximum stability for a beach chair on sand and the like.
SUMMARY OF THE INVENTION
In light of the problems associated with the known beach chair swiveling products, it is a principal object of the invention to provide a swivel apparatus for a chair which will support itself atop sand, as is found at a beach, with a minimum of penetration into the sand and with a minimum of lateral sliding during use.
It is another object of the invention to provide a swivel apparatus of the type described which is easily attached and detached from a folding, beach chair so as to permit its conversion to a swivel chair. Attachment and detachment may be quickly accomplished by a user without special tools or training.
It is an object of the invention to provide improved elements and arrangements thereof in a swivel apparatus for the purposes described which is lightweight in construction, inexpensive to manufacture, and dependable in use.
Briefly, the swivel apparatus in accordance with this invention achieves the intended objects by featuring a load-distributing platform being an inverted bowl with a bottom surface for stable engagement with unconsolidated earth. A swivel mechanism is secured atop the load-distributing platform. A carriage is secured atop the swivel mechanism and has a number of clips for selective fastening to the legs of a beach chair.
The foregoing and other objects, features and advantages of the present invention will become readily apparent upon further review of the following detailed description of the preferred embodiment as illustrated in the accompanying drawings.
REFERENCES:
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patent: 2854065 (1958-09-01), Fox
patent: 2916084 (1959-12-01), Bottemiller et al.
patent: 4720140 (1988-01-01), Change, III
patent: 4824170 (1989-04-01), Goldmeier
patent: 4842335 (1989-06-01), Wunderlich
patent: 5078451 (1992-01-01), Sobel
patent: 5395157 (1995-03-01), Rollo et al.
patent: 5931534 (1999-08-01), Hutter
Cuomo Peter M.
Greiner Stephen R.
Vu Stephen
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