Water mattress with hydraulic chamber assembly and method of making same
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United States of America Patent
Stats
-
Jun 21, 1988
Issued Date -
N/A
app pub date -
Mar 12, 1987
filing date -
Apr 30, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A water mattress includes an outer bladder for retaining water and an inner chamber assembly for inhibiting wave motion within the bladder. The chamber assembly includes multiple chambers each having a bottom sheet and a closure sheet, and the bottom sheet being deformed to provide the bottom and sides of the chamber. Adjacent chambers are joined along a single seam to form the chamber assembly. In a preferred method, the bottom sheet is heated and drawn into a vacuum form where it is cooled to permanently deform the sheet into integral, multiple chamber, seamless configuration.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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