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Class Information
Number: 137/625.28
Name: Fluid handling > Systems > Multi-way valve unit > Dividing into parallel flow paths with recombining
Description: Devices comprising a single inlet or admission passage and a single outlet or exhaust passage, the passages being joined by a plurality of flow lines or passages controlled by a valve unit.










Sub-classes under this class:

Class Number Class Name Patents
137/625.33 Reciprocating 192
137/625.31 Rotary 156
137/625.29 Valve with bypass connections 102
137/625.3 With metering feature 371


Patents under this class:
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Patent Number Title Of Patent Date Issued
8689832 Volume booster with reduced noise trim Apr. 8, 2014
8678048 Device for dispensing effervescent beverages and a three-way valve Mar. 25, 2014
8641395 Compressor Feb. 4, 2014
8584692 Electromagnetic flow regulator, system, and methods for regulating flow of an electrically conductive fluid Nov. 19, 2013
8539981 Passive fluid flow regulator Sep. 24, 2013
8430129 Electromagnetic flow regulator, system, and methods for regulating flow of an electrically conductive fluid Apr. 30, 2013
8397760 Electromagnetic flow regulator, system, and methods for regulating flow of an electrically conductive fluid Mar. 19, 2013
8322371 Ball seat valve, use of the same, and method for controlling a valve assembly comprising a ball seat valve Dec. 4, 2012
8272399 Fluid admission system for providing a pressure-balanced valve Sep. 25, 2012
8136551 Carbon nanotube-based gas valve Mar. 20, 2012
8093917 Sampling apparatus Jan. 10, 2012
8066258 Valve seat apparatus for use with fluid valves Nov. 29, 2011
7921868 Airing and venting elements for pipes and fittings Apr. 12, 2011
7661609 Pressure washer with soft start washer wand Feb. 16, 2010
7527072 Gas cook-top with glass (capacitive) touch controls and automatic burner re-ignition May. 5, 2009
7213547 Valve May. 8, 2007
7201187 Low-flow valve Apr. 10, 2007
7163027 Air tap assembly Jan. 16, 2007
7114336 Flow pulsing valve and fuel supply system for a turbine engine incorporating same Oct. 3, 2006
7037411 Apparatus and method for handling easily polymerizable substance, apparatus for extracting liquid from apparatus under reduced pressure, and process for producing easily polymerizable substanc May. 2, 2006
6986365 High-flow microvalve Jan. 17, 2006
6845917 Water outlet structure of ceramic control valve for single-handled faucet Jan. 25, 2005
6625824 Automatically controlled system for maintaining a swimming pool Sep. 30, 2003
6439267 Adjustable flow diffuser Aug. 27, 2002
6289934 Flow diffuser Sep. 18, 2001
6279605 Water stopping seat of ceramic control valve of faucet Aug. 28, 2001
6234205 Surgical probe adapted for smoke evacuation May. 22, 2001
6227245 Undersea hydraulic coupling with internal guard for flow port May. 8, 2001
6039075 Band controlled valve/actuator Mar. 21, 2000
6019346 Piezo-actuated high response valve Feb. 1, 2000
5769388 Flow diffuser and valve Jun. 23, 1998
5641895 Dynamic contaminant extraction measurement for chemical distribution systems Jun. 24, 1997
5445185 Piezoelectric fluid control valve Aug. 29, 1995
5400824 Microvalve Mar. 28, 1995
5230367 Quiet high pressure reducing valve Jul. 27, 1993
5218998 Linearly adjustable Jun. 15, 1993
5103869 Piezoelectric on-off valve for air conditioning Apr. 14, 1992
5054522 Microvalve Oct. 8, 1991
5048568 Quick opening slide valve Sep. 17, 1991
5020567 Drainage valve having a flexible flap with an edge taper Jun. 4, 1991
4958774 Fuel injection Sep. 25, 1990
4958773 Fuel injection Sep. 25, 1990
4776752 Speed governed rotary device Oct. 11, 1988
4729407 Digital control valve Mar. 8, 1988
4700746 Control valve for high pressure fluids Oct. 20, 1987
4624442 Control regulator having a rolling diaphragm Nov. 25, 1986
RE32197 High energy loss fluid control Jul. 8, 1986
4593446 Method of manufacturing a fluid flow restrictor Jun. 10, 1986
4577652 Nozzle and impingement plate valve Mar. 25, 1986
4569368 Apparatus for providing a link between two suction promoting lines Feb. 11, 1986

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