Constant force cushion
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United States of America Patent
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-
Dec 22, 1987
Issued Date -
N/A
app pub date -
Mar 29, 1985
filing date -
Dec 20, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cushion is composed of strips formed from resilient foam material, and these strips provide a displaceable surface which, when deformed, exerts a restoring force that is generally constant irrespective of the extent of the deformation. Thus, the cushion will apply a generally uniform supporting pressure against an irregularly contoured body that is supported on it. Each strip is composed of a succession of arch-like segments. Moreover, the strips are arranged side-by-side with the arch-like segments of any strip being offset from the arch-like segments of the strips adjacent to it.
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