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Class Information
Number: 137/115.06
Name: Fluid handling > Self-proportioning or correlating systems > Self-controlled branched flow systems > Bypass or relief controlled by main line fluid condition > Flow rate responsive > Bypass or relief valve biased open
Description: Subject matter comprising a valve means for permitting the flow to the bypass or relief valve is held open in absence of the flow by a flexibly adjustable device (e.g., a weight of the valve body itself, or a spring or such similar flexible means).










Patents under this class:

Patent Number Title Of Patent Date Issued
8517148 Lubrication system with tolerance for reduced gravity Aug. 27, 2013
8439069 Air release valve May. 14, 2013
8215330 Adjustable recirculating valve Jul. 10, 2012
6857444 Flow-actuated trapped-pressure unloader valve Feb. 22, 2005
6739853 Compact control mechanism for axial motion control valves in helical screw compressors May. 25, 2004
6415809 Fluidic valve assemblies having improved fluidic valve mechanisms, and devices operable therewith Jul. 9, 2002
6334458 By-pass valve in particular for pressure-washing machines Jan. 1, 2002
6328535 Flow control valve capable of adjusting fluid flow characteristics in accordance with a position of a valve element in a bore Dec. 11, 2001
6116217 Full authority rail pressure-reduction valve Sep. 12, 2000
6089248 Load sense pressure controller Jul. 18, 2000
6026840 Hydraulic control system Feb. 22, 2000
5860797 Flow rate control device for a pump Jan. 19, 1999
5718255 Flow-responsive diverting valve Feb. 17, 1998
5681151 Motor driven air compressor having a combined vent valve and check valve assembly Oct. 28, 1997
5669405 Apparatus and method for automatically disabling pressure relief valve of backflow preventer Sep. 23, 1997
5564458 Timing valve for the discontinuous metering of a volume flow Oct. 15, 1996
5513672 Valve assembly May. 7, 1996
5501245 Coaxial pressurized fluid flow regulator Mar. 26, 1996
5385329 Method and apparatus for enhancing stability in hydraulic flow control Jan. 31, 1995
5322217 Vehicle heating system and bypass therefor Jun. 21, 1994
5311905 Remote dump and safety valve May. 17, 1994
5172716 Recirculation valve Dec. 22, 1992
4967783 Recirculation valve with pilot valve Nov. 6, 1990
4941502 Low pressure recirculation valve Jul. 17, 1990
4917138 Priority flow control valve for hydraulic power circuits Apr. 17, 1990
4895180 Anti-backflow valve Jan. 23, 1990
4865068 Bleed control apparatus for a fluid conveying system Sep. 12, 1989
4779639 Automatic recirculation valve Oct. 25, 1988
4663936 Load sensing priority system with bypass control May. 12, 1987
4638831 Valve arrangement for unloading liquid flow at a non-return valve Jan. 27, 1987
4527580 Volume control device Jul. 9, 1985
4470464 Valve means Sep. 11, 1984
4430846 Electrohydraulic drive and control Feb. 14, 1984
4243064 Bypass valve for pumps, heating systems and the like Jan. 6, 1981
4240457 Variable flow control valve for steering systems of articulated vehicles Dec. 23, 1980
4231386 Differential pressure relief valve Nov. 4, 1980
4185772 Condition response differential vacuum regulator and method of making the same Jan. 29, 1980
4121610 Electrically operated proportional flow control hydraulic valve and manually operable remote control device therefor Oct. 24, 1978
4085767 Reverse flow valve for pneumatic systems Apr. 25, 1978
4068678 Valve for hydraulic systems Jan. 17, 1978
4016895 Flow control valve Apr. 12, 1977
3976090 Slow start hydraulic valve Aug. 24, 1976
3967637 Apparatus for deaerating fluids Jul. 6, 1976
3948147 Hydraulic system with air-venting arrangement Apr. 6, 1976
3937129 Load responsive system with area change flow extender Feb. 10, 1976











 
 
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