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Class Information
Number: 4/541.2
Name: Baths, closets, sinks, and spittoons > Tubs > Means for agitating or circulating water in a tub > With condition response
Description: Subject matter wherein the apparatus has means to sense a change in the environment to effect a change in the operation of the apparatus that causes the water within the tub to churn or flow.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8621678 Freeze prevention for a spa having a spa pack powered through a ground fault circuit interrupter Jan. 7, 2014
8296874 Basin for a foot spa Oct. 30, 2012
8171576 Jetted bathtub May. 8, 2012
8069505 Jet for water containment vessels Dec. 6, 2011
7100220 Bath apparatus Sep. 5, 2006
7055186 Combination spa and entertainment system Jun. 6, 2006
6973683 Bath apparatus Dec. 13, 2005
6943325 Water heater Sep. 13, 2005
6925661 Bathtub/shower water control system Aug. 9, 2005
6875961 Method and means for controlling electrical distribution Apr. 5, 2005
6857139 Tactile therapy system for spas Feb. 22, 2005
6775863 Spa or pool switch Aug. 17, 2004
6754916 Spas having a retractable entertainment unit Jun. 29, 2004
6732387 Automated pedicure system May. 11, 2004
6662384 Motorized control of water delivery through ports of tub, Spa of shower Dec. 16, 2003
6632010 Fluid-holding apparatus including a sensor Oct. 14, 2003
6590188 Control system for bathers Jul. 8, 2003
6490740 Motorized control of water delivery through ports of tub, spa or shower Dec. 10, 2002
6405387 Sanitized jetted bathing facility Jun. 18, 2002
6355913 Infrared sensor for hot tub spa heating element Mar. 12, 2002
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
6185757 Manual control of water delivery through ports of tub, spa or shower Feb. 13, 2001
6171073 Fluid vacuum safety device for fluid transfer and circulation systems Jan. 9, 2001
6098648 Intake for whirlpool-type bathtub Aug. 8, 2000
6059536 Emergency shutdown system for a water-circulating pump May. 9, 2000
6038712 Safety suction assembly for use in whirlpool baths and the like Mar. 21, 2000
5947700 Fluid vacuum safety device for fluid transfer systems in swimming pools Sep. 7, 1999
5932127 Heater control for spa Aug. 3, 1999
5865601 Safety device for avoiding entrapment at a water reservoir drain having a secondary blowing pump Feb. 2, 1999
5829069 Jet bath having multiple accessories Nov. 3, 1998
5822807 Suction relief apparatus Oct. 20, 1998
5682624 Vacuum relief safety valve for a swimming pool filter pump system Nov. 4, 1997
5585025 SPA control circuit Dec. 17, 1996
5570481 Suction-actuated control system for whirlpool bath/spa installations Nov. 5, 1996
5546616 Head rest assembly Aug. 20, 1996
5509463 Saddle type heat exchanger Apr. 23, 1996
5499406 Safety suction assembly for use in whirlpool baths and the like Mar. 19, 1996
5459887 Portable sitz bath and therapeutic chair Oct. 24, 1995
5347664 Suction fitting with pump control device Sep. 20, 1994
5345996 Energy saving water and air bubble heat maximizer for swimming pools, hot tubs, and spas Sep. 13, 1994
5245714 Whirlpool bath provided with hot water blow-off control Sep. 21, 1993
5199116 High-efficiency portable spa Apr. 6, 1993
5178523 Auxiliary package for a bath-pool Jan. 12, 1993
5172754 Heat exchanger for recovery of heat from a spa or hot tub pump motor Dec. 22, 1992
5167041 Suction fitting with pump control device Dec. 1, 1992
5144702 Blow-off nozzle structure capable of automatically varying the blow-off volume of water Sep. 8, 1992
5095559 Heating apparatus Mar. 17, 1992
5092951 Method of forming a tub apparatus Mar. 3, 1992
5079784 Hydro-massage tub control system Jan. 14, 1992
5058804 Automatic hot water supply apparatus Oct. 22, 1991

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