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Class Information
Number: 5/673
Name: Beds > Waterbed or associated device > With filling or draining means > Including air removal (e.g., burping) means
Description: Waterbed filling or draining means having means to release gas that accumulates in a liquid filled bladder.

Patents under this class:

Patent Number Title Of Patent Date Issued
6463609 Rake for moving bubbles in a waterbed Oct. 15, 2002
6317911 Rake for moving bubbles in a waterbed Nov. 20, 2001
6081951 Rake for moving bubbles in a waterbed Jul. 4, 2000
5927317 Venting structure of a waterbed Jul. 27, 1999
5056171 Waterbed mattress air bleeder valve Oct. 15, 1991
4862542 Waterbed burper Sep. 5, 1989
4745650 Method of burping a watermattress and tucking a sheet between said watermattress and a surrounding frame May. 24, 1988
4639961 System for removing air from waterbed Feb. 3, 1987
4627796 Air removing apparatus Dec. 9, 1986
4611357 Flotation sleeping mattress constructions Sep. 16, 1986
4392872 Air bleeder valve for waterbed mattresses Jul. 12, 1983
4346489 Foldable waterbed Aug. 31, 1982
4332043 Waterbed mattress Jun. 1, 1982
4316489 Method and device for eliminating air from water bed mattresses Feb. 23, 1982
3952348 Water mattress construction Apr. 27, 1976

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