US 7,125,079 B1Granted

Portable seating device

AssigneeIntegrated Systems, Inc.

InventorsGordon J. Lee, Cristobal Molina, Paul J. Lee, David L. Carlson

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Abstract

The present invention relates to a portable seating device (e.g., portable stadium seat) that includes a seat and a backrest movably interconnected with the seat, and that is generally positionable in both stowed and deployed positions. The backrest also may be selectively movable toward and/or away from the seat, at least when the device is in the deployed position. One embodiment of the device may include a base that is interfacable with a supporting surface on which the device is to be supported, and a mechanism for rotatably interconnecting the seat with the base. Accordingly, the seat may be rotatable relative to the base. Another embodiment of the device may include a stand having a first end that is detachably interconnectable with the seat and/or base, and a second end that may be spaced from the base and interfacable with the supporting surface on which the device is to be supported.

Claims38

Dependent claims

A portable seating device, comprising:

a seat assembly comprising a rotatable seat, that in turn comprises a seating surface;
a first backrest movably interconnected with said seat, wherein said portable seating device is positionable in a stowed position and a deployed position, and wherein said first backrest is selectively movable at least one of toward and away from a reference plane that at least generally contains said seating surface at least when said seating device is in said deployed position;
a second backrest disposed within a perimeter of said first backrest, disposed between said first backrest and a user when sitting on said seat, and selectively movable relative to said first backrest, wherein said first backrest and said second backrest may be collectively moved relative to said seat to change a vertical position of said first and second backrests when said seating device is in said deployed position, and wherein said second backrest further may be moved relative to said first backrest to change a vertical position of said second backrest when said seating device is in said deployed position and without changing a vertical position of said first backrest;
and
a stand detachably interconnected with said seat assembly, wherein said stand supports said seat assembly above a supporting surface and in spaced relation to said supporting surface when interconnected with said seat assembly, and wherein said portable seating device is configured for a lawn chair like application when said stand is detachably interconnected with said seat assembly.

2 more elements

A portable seating device, comprising:

a seat assembly comprising a rotatable seat;
a lower frame section disposable in a fixed position relative to said seat;
an upper frame section movably interconnected with said lower frame section, wherein a position of said upper frame section relative to said lower frame section may be changed while said lower frame section is disposed in said fixed position relative to said seat;
a first backrest interconnected with said upper frame section;
a second backrest disposed within a perimeter of said first backrest, disposed between said first backrest and a user when sitting on said seat, and selectively movable relative to said first backrest, wherein said first backrest and said second backrest may be collectively moved relative to said seat by moving said upper frame section relative to said lower frame section and which changes a vertical position of said first and second backrests relative to said seat, and wherein said second backrest further may be moved relative to said first backrest to change a vertical position of said second backrest relative to said seat and without changing a vertical position of said first backrest relative to said seat;
and
a stand detachably interconnected with said seat assembly, wherein said stand supports said seat assembly above a supporting surface and in spaced relation to said supporting surface when interconnected with said seat assembly, and wherein said portable seating device is configured for a lawn chair like application when said stand is detachably interconnected with said seat assembly.

4 more elements

Dependencies are inferred from the claim text.