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Class Information
Number: 137/625.29
Name: Fluid handling > Systems > Multi-way valve unit > Dividing into parallel flow paths with recombining > Valve with bypass connections
Description: Devices in which the valve has connections in addition to those for the inlet and outlet to provide for dividing and recombining, e.g., a main passage with a connection for diverting flow to a device other than a valve and a connection for returning the flow to the main passage.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8590569 Metering ball valve Nov. 26, 2013
8485226 Three-way valve integrated with radiator Jul. 16, 2013
8276662 Systems and methods to filter and collect downhole fluid Oct. 2, 2012
8205635 Flowmeter and flow-rate controller Jun. 26, 2012
8096316 Valve systems for use with a fluid injector system Jan. 17, 2012
7975721 Fluid valve systems Jul. 12, 2011
7878217 Valve device for sanitary fitting and sanitary fitting Feb. 1, 2011
7717061 Gas switching mechanism for plasma processing apparatus May. 18, 2010
7651323 Smart control valve for compressors Jan. 26, 2010
7523787 Reverse out valve for well treatment operations Apr. 28, 2009
7007639 Air injection engine Mar. 7, 2006
6988511 Outlet valve structure for water dispenser Jan. 24, 2006
6868864 Water flow control valve Mar. 22, 2005
6810664 Slotted spool valve Nov. 2, 2004
6712093 Valve Mar. 30, 2004
6575195 Bypass valve Jun. 10, 2003
6510999 Thermostat three-way control valve equipped with automatic air vent valve for air conditioning fan-coil unit Jan. 28, 2003
6347644 Bypass valve for water treatment system Feb. 19, 2002
6295828 Apparatus for switching a refrigerant channel of an air conditioner having cooling and warming functions Oct. 2, 2001
6293298 Water softener valve Sep. 25, 2001
6290208 Valve seal, including for duplex head Sep. 18, 2001
6277293 Dual filter isolation block Aug. 21, 2001
6253837 By-pass values for heat exchanger Jul. 3, 2001
6155296 Linear fluid flow valve Dec. 5, 2000
6152177 Method and apparatus for auto-zeroing a flow sensor Nov. 28, 2000
6135154 Water faucet Oct. 24, 2000
6058971 Quick-connect diverter valve May. 9, 2000
5996606 Four-port valve and three-way valve Dec. 7, 1999
5988218 Connection fitting for connecting a pressure expansion vessel for heated drinking water Nov. 23, 1999
5967185 Rotary valve Oct. 19, 1999
5944053 Solenoid valve for heating systems Aug. 31, 1999
5911212 Priority valve for an intercooled engine Jun. 15, 1999
5730186 Integrated solenoid valve/rotary joint Mar. 24, 1998
5693217 Fluid circuit with a primary stream filter and a bypass stream centrifuge Dec. 2, 1997
5582208 Flow control valve Dec. 10, 1996
5564458 Timing valve for the discontinuous metering of a volume flow Oct. 15, 1996
5551480 Valve driving system Sep. 3, 1996
5452744 Valve for water system Sep. 26, 1995
5279329 Faucet diverter valve Jan. 18, 1994
5244013 Water conditioner rotary valve drive system Sep. 14, 1993
5203081 Method of assembling a water conditioner rotary value Apr. 20, 1993
5174337 Water conditioner rotary valve Dec. 29, 1992
5162080 Rotary flow control valve Nov. 10, 1992
5152321 Bypass valve Oct. 6, 1992
5139050 Multi-functional valve Aug. 18, 1992
5133385 Changeover valve for water filter Jul. 28, 1992
5107896 Multi-functional valve Apr. 28, 1992
5083589 Low cost return diverter valve Jan. 28, 1992
5057214 Filtration and backwash control system for water filters associated with spigot faucets Oct. 15, 1991
4972877 Bypass valve Nov. 27, 1990

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