Articulated bed with cellular air cushion mattress
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 18, 1987
Grant Date -
N/A
app pub date -
Apr 4, 1984
filing date -
Apr 6, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Individual groups of inflatable cushions forming an air mattress are supplied with pressurizing air through a common feed duct having an upstream on/off valve and individual on/off valves in branch ducts leading to individual groups of cushions. When the upstream valve is open, it exhausts pressure air from the branch ducts so that if any one of the branch duct valves is also open, its associated group of cushions are subjected to reduced pressure. The individual valves may be operated to isolate groups of cushions from each other while the upstream valve is closed and thus subject a particular group of cushions to system pressure. A single pressure sensor measures the pressure to which the particular group of cushions is subjected and the whole system may be programmed though a computer for automatic control dependent upon individual user requirements.
First Claim
Family
International Classification(s)
Cited Art Landscape
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