Beds – Support for users body or part thereof – Removable support specially adapted for seating
Reexamination Certificate
2007-06-05
2007-06-05
Bagnell, David (Department: 3673)
Beds
Support for users body or part thereof
Removable support specially adapted for seating
C005S653000
Reexamination Certificate
active
11208677
ABSTRACT:
A therapeutic seat cushion for supporting a person remaining in a sitting position for a prolonged period of time, wherein the cushion is a generally rectangular body having a hollow interior with a plurality of generally radially extending partitions extending across the interior of the body, dividing it into a plurality of individual chambers spaced sequentially around the body. Apparatus is connected with the chambers to sequentially expand and contract them in an alternating pattern so that some of the chambers are expanded to contact and support the person while other chambers are contracted to relieve the pressure exerted against the person by the other chambers, whereby the formation of pressure sores and other harmful effects are avoided by periodically and temporarily relieving pressure exerted by the chambers against different areas of the person. In one embodiment the cushion is generally toroidally shaped, with a generally T-shaped central opening, and in another embodiment the cushion has a shaped reduced thickness central portion.
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Bagnell David
Lambert Dennis H.
Liu Jonathan
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