Dynamic support for preventing back-ache in a sitting position
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United States of America Patent
Stats
-
Dec 15, 1992
Grant Date -
N/A
app pub date -
Feb 4, 1992
filing date -
Feb 6, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The dynamic support (1) comprises means (3) for the cyclic inflation and deflation of an air chamber (2). The air chamber (2) is divided into two half-chambers (2A) having a common rigid laminar element (4) to be positioned on a seat back. When the half-chambers (2A) are inflated they press mainly against the muscular tissue of the lumbar region of the user's back, with the exception of his vertebrae and ribs.
First Claim
Family
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Cited Art Landscape
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