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Class Information
Number: 137/112
Name: Fluid handling > Self-proportioning or correlating systems > Self-controlled branched flow systems > Plural inflows > Alternate or successive inflows
Description: Systems in which flow in one inlet is alternated with the flow in a second inlet or is substituted therefor in response to a sensing of a changed condition.










Sub-classes under this class:

Class Number Class Name Patents
137/113 Control by depletion of source 110


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8689814 Regulated automatic changeover valve Apr. 8, 2014
8678026 Automatic increased-suction relief apparatus Mar. 25, 2014
8590555 Low pressure measurement devices in high pressure environments Nov. 26, 2013
8517148 Lubrication system with tolerance for reduced gravity Aug. 27, 2013
8490640 Latching pressure regulator Jul. 23, 2013
8469048 Pressure feedback shuttle valve Jun. 25, 2013
8429892 Combustion apparatus having a fuel controlled valve that temporarily flows purging air Apr. 30, 2013
8413673 Flow actuated valve Apr. 9, 2013
8397742 Shuttle valve Mar. 19, 2013
8381756 Method for supplying gas Feb. 26, 2013
8327869 Ball check valve assembly for hydraulic control circuit Dec. 11, 2012
8312891 Automatic switching valve with alarm Nov. 20, 2012
8256444 Check ball valve assembly with check ball guide Sep. 4, 2012
8241034 Fuel selection valve assemblies Aug. 14, 2012
8171951 Valve with an AND-function May. 8, 2012
8161994 Multiple phase transfer valve for liquid hydrogen tank Apr. 24, 2012
8132588 Valve Mar. 13, 2012
8127786 Proportional selector valve for selecting between two pressure sources Mar. 6, 2012
8113226 Valve assemblies and related systems and methods Feb. 14, 2012
7967393 Pressure balanced supply valve for vehicle brake system with integrated low pressure accumulator Jun. 28, 2011
7905246 Low pressure measurement devices in high pressure environments Mar. 15, 2011
7740023 Check valve assemblies and related methods Jun. 22, 2010
7739940 Directional control valve device and fluid pressure cylinder device Jun. 22, 2010
7717116 Apparatus for connecting a respiratory device with a patient May. 18, 2010
7677263 Tandem pump valve structure Mar. 16, 2010
7677997 Double piston and belt type continuously variable transmission Mar. 16, 2010
7617837 Low pressure measurement devices in high pressure environments Nov. 17, 2009
7575012 Gas supply apparatus Aug. 18, 2009
7530430 Pressure lubrication for inverted flight May. 12, 2009
7475701 Valve systems and injector system including such valve systems Jan. 13, 2009
7416903 Wavy interface mixer Aug. 26, 2008
7389788 Low pressure measurement devices in high pressure environments Jun. 24, 2008
7328718 Automatic changeover regulator Feb. 12, 2008
7302960 Momentary high pressure valve Dec. 4, 2007
7273098 Method for controlling oil and gas well production from multiple wells Sep. 25, 2007
7243671 Chatter resistant shuttle valve Jul. 17, 2007
7201179 Modular fluid supply system Apr. 10, 2007
7165571 Dual pneumatic quick-disconnect coupler adapter Jan. 23, 2007
7159605 Chatter resistant shuttle valve Jan. 9, 2007
7150288 Control valve apparatus Dec. 19, 2006
7128688 Hydraulic control for automatic transmission Oct. 31, 2006
7121266 Fuel pump cutoff shuttle valve Oct. 17, 2006
7066197 Supplying water to a reticulation system from different sources Jun. 27, 2006
7032606 Manifold system and method for compressed medical gases Apr. 25, 2006
7000638 Diverter valve with multiple valve seat rings Feb. 21, 2006
6857440 Safety valve Feb. 22, 2005
6805148 Relief-valve jet Oct. 19, 2004
6779543 BOP operating system with quick dump valve Aug. 24, 2004
6708717 Flushing system for air conditioning drainage pipes Mar. 23, 2004
6675110 Testing valve assemblies Jan. 6, 2004

1 2 3 4










 
 
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