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Class Information
Number: 5/665
Name: Beds > Waterbed or associated device
Description: Subject matter comprising a structure, providing a flexible supporting surface for substantially the whole body of a user, at least a portion of the structure adapted to enclose an amount of liquid, and devices associated with such a liquid enclosing structure.










Sub-classes under this class:

Class Number Class Name Patents
5/682 Having baffle means 85
5/685 Having plural, distinct removable bladders 42
5/686 Integral, unitary bladder structure 27
5/669 With bedclothes 55
5/675 With decorative means 21
5/671 With filling or draining means 28
5/678 With frame means supporting or surrounding a removable bladder 60
5/422 With heating or cooling means 51
5/676 With highly viscous filler 13
5/668 With insulating means 28
5/670 With massaging by fluid jet 14
5/666 With sound or light means 8
5/677 With stretchable bladder wall 8
5/674 With vibration or wave producing means 21


Patents under this class:
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Patent Number Title Of Patent Date Issued
8217667 Method and apparatus for piezoelectric sensor status assessment Jul. 10, 2012
7849541 Bed with rigid platform and fluid suspension Dec. 14, 2010
7614104 Floating water bed Nov. 10, 2009
7356862 Waterbed with massage function Apr. 15, 2008
7353554 Floating water bed Apr. 8, 2008
7191480 Mattress or cushion structure Mar. 20, 2007
7074166 Exercise apparatus and method Jul. 11, 2006
7043787 Fluid bedding May. 16, 2006
7017216 Bladder assembly and method of manufacturing same Mar. 28, 2006
6880190 Controlled pressure and flotation system Apr. 19, 2005
6481033 Multiple module mattress system with depressions accomodating inserts of differing firmness Nov. 19, 2002
6385803 Method and apparatus for supporting an element to be support, in particular the body of a patient, the apparatus having a support device independent from the control device May. 14, 2002
6269497 Waterbed mattress system for recreational vehicles Aug. 7, 2001
6094758 Waterbed mattress system for boats Aug. 1, 2000
6079068 Method and apparatus for supporting an element to be supported, in particular the body of a patient, the apparatus having a support device independent from the control device Jun. 27, 2000
5960497 Pressure relieving pad with graduated pillars Oct. 5, 1999
5901391 Bed May. 11, 1999
5850646 Pressure relief mattress Dec. 22, 1998
5669091 Structure of water bed Sep. 23, 1997
5652985 Self-adjusting pressure relief support system and methodology Aug. 5, 1997
5555580 Water bed with inner communicable air chambers Sep. 17, 1996
5513401 Watermattress apparatus May. 7, 1996
5392478 Waterbed with supplemental support Feb. 28, 1995
5353454 Adjustable lumbar support for flotation systems Oct. 11, 1994
5285541 Flotation system including improved cushioning and support features Feb. 15, 1994
5247713 Waterbed mattress liner tray Sep. 28, 1993
5136740 Varying firmness mattress Aug. 11, 1992
5107557 Waterbed mattress with air cushion Apr. 28, 1992
5086528 Water mattress and method for making same Feb. 11, 1992
5072468 Flotation therapy bed for preventing decubitus ulcers Dec. 17, 1991
5072469 Waterbed mattress with air cushion Dec. 17, 1991
5068935 Flotation therapy bed having two part construction Dec. 3, 1991
5022108 Waterbed mattress with heater pad pocket Jun. 11, 1991
5001792 Double wall mattress for waterbeds Mar. 26, 1991
4945588 Air/water mattress and inflation apparatus Aug. 7, 1990
4935978 Wedge cut waterbed mattress Jun. 26, 1990
4932721 Water couch Jun. 12, 1990
4907307 Support structure Mar. 13, 1990
4882800 Flotation mattress Nov. 28, 1989
4833457 Immersion control device and associated alarm system May. 23, 1989
4827546 Fluid mattress May. 9, 1989
4766629 Ventilated flotation mattress Aug. 30, 1988
4680820 Convertible water bed Jul. 21, 1987
4662010 Floater waterbed May. 5, 1987
4637737 Apparatus for measurement of water conditions in a watermattress Jan. 20, 1987
4611357 Flotation sleeping mattress constructions Sep. 16, 1986
4577357 Self-sealing waterbed mattress Mar. 25, 1986
4538311 Self-sealing puncturable article Sep. 3, 1985
4535496 Water bed bar Aug. 20, 1985
4468824 Water filled pressure relief device with rectangular aperture Sep. 4, 1984

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