Pressure adjustable foam support apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Jan 13, 2005
app pub date -
Apr 30, 2004
filing date -
Oct 30, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention concerns a mattress-like apparatus whose firmness is adjustable by the user. This goal is attained by enclosing the polyurethane foam core of the mattress within an airtight cover chamber, and varying the negative air pressure (vacuum) applied into it. As a result, the mattress is adjustable as to firmness measured in terms of Indentation Force Deflection (IFD, or spring-back force) and support (density).
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Family
International Classification(s)
Cited Art Landscape
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