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Class Information
Number: 4/509
Name: Baths, closets, sinks, and spittoons > Pool type > Construction details > Including water inlet or outlet means > And pump
Description: Subject matter including means to force water into or out of the pool.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8689369 Pool skimmer with integral disinfectant dispenser Apr. 8, 2014
8640275 Cleaning systems and methods for cleaning containers having non-vertical sidewalls Feb. 4, 2014
8607373 Pool fluid control system Dec. 17, 2013
8602743 Method of operating a safety vacuum release system Dec. 10, 2013
8573951 Pool recirculation pump safety system and method Nov. 5, 2013
8313306 Method of operating a safety vacuum release system Nov. 20, 2012
8281425 Load sensor safety vacuum release system Oct. 9, 2012
8281427 Safety swimming pool drain apparatus that prevents the entrapment of a person Oct. 9, 2012
8056156 Vacuum relief unit and method for a pool Nov. 15, 2011
8011032 Energy efficient circulation system for spas and hot tubs Sep. 6, 2011
7992233 Hydraulic suction fuse Aug. 9, 2011
7988425 Pump and alarm control Aug. 2, 2011
7854597 Pumping system with two way communication Dec. 21, 2010
7836526 Negative or vanishing edge for spas and/or hot tubs Nov. 23, 2010
7784117 Electromechanical safety valve system for swimming pool and spa pumps Aug. 31, 2010
7493913 Swimming pool vacuum relief safety valve Feb. 24, 2009
7455070 Swimming pool vacuum relief safety valve Nov. 25, 2008
7346938 Retrofit suction sanitation safety cover Mar. 25, 2008
7306718 Skimmer with flexible weir gate for spas and pools Dec. 11, 2007
7203977 Fill and drain jetted hydromassage antimicrobial water vessel Apr. 17, 2007
7146659 Hydromassage antimicrobial whirlpool bathtub Dec. 12, 2006
7140051 Dry suction fitting assembly Nov. 28, 2006
7089607 Pool drain assembly with annular inlet Aug. 15, 2006
7076813 Pool skimmer Jul. 18, 2006
6988282 Drain cover Jan. 24, 2006
6971125 Antimicrobial whirlpool bathtub Dec. 6, 2005
6966079 Pool skimmer Nov. 22, 2005
6944893 Combination sanitation suction device and high flow antimicrobial dispenser Sep. 20, 2005
6810537 Pool floor drain assembly for a suction-activated water circulation system Nov. 2, 2004
6779205 Vacuum surge suppressor for pool safety valve Aug. 24, 2004
6775863 Spa or pool switch Aug. 17, 2004
6760931 Non-electric sanitation water vessel system Jul. 13, 2004
6754915 Scupper with automatic shutoff valve Jun. 29, 2004
6738994 Drain cover May. 25, 2004
6694541 Transparent fitting for spas and the like Feb. 24, 2004
6615417 Anti-entrapment swimming pool and wading pool main drain cover and method Sep. 9, 2003
6470508 Air check valve system for a spa Oct. 29, 2002
6460202 Transparent fitting for spas and the like Oct. 8, 2002
6412123 Portable spa Jul. 2, 2002
6387252 Compact filtration unit for swimming pool basin May. 14, 2002
6341387 Safety device and method for swimming pool drain protection Jan. 29, 2002
6295662 Porous solenoid structure Oct. 2, 2001
6276200 Liquid level controller Aug. 21, 2001
6269493 Breakaway drain cover Aug. 7, 2001
6253391 Safety system at a discharge port in a pool Jul. 3, 2001
6251285 Method for preventing an obstruction from being trapped by suction to an inlet of a pool filter pump system, and lint trap cover therefor Jun. 26, 2001
6233754 Swimming pool May. 22, 2001
6200108 Heat exchanging means for a pump motor using a bypass tube within a recirculating water system Mar. 13, 2001
6151726 Swimming pool Nov. 28, 2000
6138294 Cooling device for compact pumping and filtration assembly for swimming pool Oct. 31, 2000

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