Selectively deformable cushion

Details Selectively deformable cushion Selectively deformable cushion

1998-05-28

2000-01-11

Trettel, Michael F.

Beds

Support for users body or part thereof

Removable support specially adapted for seating

5709, 56559, 2972846, A47C 718, A47C 2708

Patent

active

060121882

ABSTRACT:
A seat cushion with a carrying handle has a multi-cellular foam interior structure for holding and releasing air encased within an air impermiable covering and at least one valve member secured to the covering and having a conduit extending through the covering into the foam. The handle may span a front indented portion in which the valve is located so as to span the valve. The cushion may have a second valve permitting air to enter into but not exit from the foam so as to re-inflate the cushion gradually. The first valve permits air to exit the foam when it is open while a compressible force is applied to the foam. Thus, when a person sits on the cushion and opens the valve, air within the cellular structure of the foam is expelled in accordance with the force applied and the foam is shaped to that of the user's compression applying members. The second valve permits re-inflation of the cushion gradually if the user fails to open or actuate the first valve when removed from the cushion for an extended time. Additionally, the cushion may include a gel containing sealed packet positioned within the covering for those instances where the cushion is used on extremely hard surfaces.

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