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Class Information
Number: 137/337
Name: Fluid handling > With heating or cooling of the system > Hot and cold water system having a connection from the hot to the cold channel
Description: Fluid handling systems comprising hot and cold water systems having a cross connection from the hot water channel to the cold water channel to permit flow of hot water to the cold water channel.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8672233 Water saving apparatus Mar. 18, 2014
8534310 Hot water circulation system Sep. 17, 2013
8522814 Water control valve assembly Sep. 3, 2013
8517056 Fluid regulator Aug. 27, 2013
8505498 Commercial hot water control system Aug. 13, 2013
8505830 Water control fixture having bypass valve Aug. 13, 2013
8439481 Liquid dispenser including sloped outlet opening wall May. 14, 2013
8434510 Water circulation system valve assemblies having water temperature control May. 7, 2013
8327873 Temperature back flow control valve Dec. 11, 2012
8291930 Hot water system Oct. 23, 2012
8272395 Water dispensing device capable of recycling cold water Sep. 25, 2012
8245946 Method and apparatus for conserving water Aug. 21, 2012
8231064 Water control fixture having auxiliary functions Jul. 31, 2012
8176937 Temperature adjustable mixing valve May. 15, 2012
8091793 Water control fixture having bypass valve Jan. 10, 2012
8066196 Water saver system Nov. 29, 2011
8043556 Ablutionary installations Oct. 25, 2011
7971601 Water circulation system valve assemblies having water temperature control Jul. 5, 2011
7934663 Water recovery systems and control valves May. 3, 2011
7832421 System and method for making hot water available in a domestic water installation and domestic water installation Nov. 16, 2010
7779857 Hot water system Aug. 24, 2010
7744007 Thermostatic mixing valves and systems Jun. 29, 2010
7731097 Liquid conservation device and a liquid apparatus incorporating the liquid conservation device Jun. 8, 2010
7726332 Durable water heating system providing rapid hot water delivery Jun. 1, 2010
7287707 Water control fixture having thermostatically controlled bypass valve Oct. 30, 2007
7198059 Apparatus and system for retrofitting water control valves Apr. 3, 2007
7178543 Rapid hot water apparatus and method Feb. 20, 2007
7140382 Water circulating system having thermostatically controlled bypass valve Nov. 28, 2006
7140378 Instantaneous water heater Nov. 28, 2006
7077155 Hot water recirculating system Jul. 18, 2006
7073528 Water pump and thermostatically controlled bypass valve Jul. 11, 2006
7051754 Immediate hot water supply device May. 30, 2006
7036520 Hot water heater recirculation system and method May. 2, 2006
7025077 Heat exchanger for instant warm water Apr. 11, 2006
7000626 Instantaneous and constant fluid delivery system Feb. 21, 2006
7000631 Apparatus for maintaining fluid temperature Feb. 21, 2006
6997200 Water conservation system Feb. 14, 2006
6962162 Method for operating a multi family/commercial plumbing system Nov. 8, 2005
6953053 Pressure relief valve assembly Oct. 11, 2005
6929187 Water control fixture having thermostatically controlled bypass valve Aug. 16, 2005
6895985 Smart device and system for improved domestic use and saving of water May. 24, 2005
6779552 Domestic hot water distribution and resource conservation system Aug. 24, 2004
6598616 Tapping point and supply water network comprising such tapping point Jul. 29, 2003
6536464 Thermostatically controlled bypass valve and water circulating system for same Mar. 25, 2003
6532906 Inlet heat recovery module for water heater Mar. 18, 2003
6453938 Warm drinking water conduit system Sep. 24, 2002
6286464 Water heating system Sep. 11, 2001
6227235 Temperature regulated hot water recirculation system May. 8, 2001
6182683 Water recirculation manifold Feb. 6, 2001
6164307 Non-circulating, rapid, hot tap water apparatus and method Dec. 26, 2000

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