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Class Information
Number: 5/676
Name: Beds > Waterbed or associated device > With highly viscous filler
Description: Waterbeds or associated devices in which the liquid within the bladder has more tendency to hold together as it flows (i.e., thicker) or more gel-like than water, for example.

Patents under this class:

Patent Number Title Of Patent Date Issued
6478685 Amusement system Nov. 12, 2002
5680662 Cushioning mattress for reducing shear and friction Oct. 28, 1997
5659908 Air mat and method for manufacturing the mat Aug. 26, 1997
5636395 Mattress pad with gel filled chambers coupled to a foam cushion Jun. 10, 1997
5590430 Gel filled deformable cushion and composition contained therein Jan. 7, 1997
5511260 Anti-decubitus mattress pad Apr. 30, 1996
5079786 Cushion with magnetic spheres in a viscous fluid Jan. 14, 1992
4982465 Level-variable supporting apparatus Jan. 8, 1991
4788730 Gel-filled, variably-adjustable cushioning system for supporting a person Dec. 6, 1988
4707872 Resilient supporting device Nov. 24, 1987
4338692 Body-support floatation system Jul. 13, 1982
4281425 Neonatal flotation pad Aug. 4, 1981
3968530 Body support means Jul. 13, 1976

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