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Class Information
Number: 137/111
Name: Fluid handling > Self-proportioning or correlating systems > Self-controlled branched flow systems > Plural inflows
Description: Systems in which a plurality of flows from separate sources are joined, or are provided with a common outflow, and in which at least one flow path is controlled in response to a sensed condition change.










Sub-classes under this class:

Class Number Class Name Patents
137/112 Alternate or successive inflows 172
137/114 One inflow supplements another 150


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8622073 Apparatus and method for controlling flow rate of liquid, and storage medium Jan. 7, 2014
8448659 Check valve assembly for well stimulation operations May. 28, 2013
8397742 Shuttle valve Mar. 19, 2013
8360086 Omnibus quasi-hydrosystem Jan. 29, 2013
8327869 Ball check valve assembly for hydraulic control circuit Dec. 11, 2012
8327884 Regulator valve Dec. 11, 2012
8329354 Ejector and fuel cell system using the same Dec. 11, 2012
8322361 Methods, apparatus and/or systems relating to controlling flow through concentric passages Dec. 4, 2012
8316875 Methods, apparatus and/or systems relating to fuel delivery systems for industrial machinery Nov. 27, 2012
8297744 Functional liquid supply apparatus, liquid droplet ejection apparatus, method of manufacturing electro-optical apparatus, electro-optical apparatus and electronic apparatus Oct. 30, 2012
8256444 Check ball valve assembly with check ball guide Sep. 4, 2012
8235068 Substrate processing systems and related methods Aug. 7, 2012
8171951 Valve with an AND-function May. 8, 2012
8161994 Multiple phase transfer valve for liquid hydrogen tank Apr. 24, 2012
8152515 Fuel selectable heating devices Apr. 10, 2012
8132588 Valve Mar. 13, 2012
8118050 On-line constant flow dilution Feb. 21, 2012
7687171 Multi-stage in-line cartridge ejector for fuel cell system Mar. 30, 2010
7550219 Fuel supply apparatus for fuel cell Jun. 23, 2009
7448102 Method for controlling mixtures especially for fabric processing Nov. 11, 2008
7416903 Wavy interface mixer Aug. 26, 2008
7374726 Chemical reactor May. 20, 2008
7291194 Intermittent mixer with low pressure drop Nov. 6, 2007
7288128 Intermittent mixer with low pressure drop Oct. 30, 2007
7082836 Pressure averager Aug. 1, 2006
7083118 Device for injecting and mixing liquid fertilizer with water flow in a sprinkler system pipeline Aug. 1, 2006
7036686 Soft drink dispensing system May. 2, 2006
6934643 Ultra accurate gas injection system with vehicle transient air simulation Aug. 23, 2005
6708709 Method of regulating a steam injector Mar. 23, 2004
6706438 Fluid supply device for fuel cell Mar. 16, 2004
6412514 Flip check valve Jul. 2, 2002
6318400 Low interflow hydraulic shuttle valve Nov. 20, 2001
6308724 Low capacity chlorine gas feed system Oct. 30, 2001
6299657 Process for carrying out chemical reactions using a microlaminar mixer Oct. 9, 2001
6293777 Hydraulic positive displacement machine Sep. 25, 2001
6273125 Compression key lockout device for a gate valve Aug. 14, 2001
6257268 Pressure biased shuttle valve Jul. 10, 2001
6131596 Automatic vacuum isolation valve network for a vacuum collection system Oct. 17, 2000
6120606 Gas vent system for a vacuum chamber Sep. 19, 2000
6048453 Swimming pool skimmer valve system Apr. 11, 2000
5896882 Pressure control valve Apr. 27, 1999
5850844 Pressure reduction valve Dec. 22, 1998
5810042 Device for ensuring the safety of the gas and oxygen supply to a cutting and welding torch, and a flow-pressure switch for use in said device Sep. 22, 1998
5632299 Water and steam mixing device May. 27, 1997
5435132 Method and flow control valve assembly for flow balancing Jul. 25, 1995
5190356 AND-type control valve for a tractor-trailer braking system Mar. 2, 1993
5146944 Dual pump metering dilution apparatus Sep. 15, 1992
5070813 Coating apparatus Dec. 10, 1991
5018547 Pressure actuated valve May. 28, 1991
4917137 Pressure-balancing mixing valve Apr. 17, 1990

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