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Class Information
Number: 137/505.18
Name: Fluid handling > Line condition change responsive valves > With separate connected fluid reactor surface > With opening bias (e.g., pressure regulator) > Balanced valve
Description: Devices in which the valve is so related to the fluid controlled that the pressure bias imparted by the line pressure is balanced by means connected to but not forming a portion of the valve itself, so that the effect of line pressure tending to open or close the valve is cancelled out at least in part.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8584699 Compensating pressure regulator Nov. 19, 2013
8550113 Vacuum breaker flow regulator Oct. 8, 2013
8469052 Control valve Jun. 25, 2013
8459288 Pressure reducing valve and regulator for gas Jun. 11, 2013
8459297 Balanced valve cartridge Jun. 11, 2013
8371329 Pilot device with remote pressure control for gas pressure regulators Feb. 12, 2013
8297306 Fluid regulator Oct. 30, 2012
8267168 Regulator dampening device and method Sep. 18, 2012
8151822 Integral overpressure monitoring device Apr. 10, 2012
8141580 Pressure reducer Mar. 27, 2012
7810517 Multiple-input gas adjuster Oct. 12, 2010
7757703 Device for regulating pressure Jul. 20, 2010
7712482 Pressure-reducing valve May. 11, 2010
7681588 Pressure regulator Mar. 23, 2010
7650904 Pressure-regulating valve with an integrated pressure gauge Jan. 26, 2010
7520297 Pressure regulator device and system Apr. 21, 2009
7341073 Valve member for a balanced pressure reducer Mar. 11, 2008
7258133 Pressure reducing valve Aug. 21, 2007
7255126 Sanitary liquid pressure regulator Aug. 14, 2007
7192665 Regulator for fuel cell Mar. 20, 2007
7178551 Valve Feb. 20, 2007
7157168 Regulator Jan. 2, 2007
7140387 Regulated gas supply system Nov. 28, 2006
7077158 Velocity head compensated valve assembly Jul. 18, 2006
6986338 Fluid flow pressure regulator Jan. 17, 2006
6932108 Pressure reducer Aug. 23, 2005
6929026 Sanitary liquid pressure regulator Aug. 16, 2005
6923197 Pressure regulator with tamper-proof safety feature Aug. 2, 2005
6874521 High to low gas flow regulator Apr. 5, 2005
6854480 Regulated gas supply system Feb. 15, 2005
6843266 Regulator with erosion resistant seal assemblies Jan. 18, 2005
6840269 Pressure reducer for a fluid sampling device Jan. 11, 2005
6814099 Flow regulator for water pump Nov. 9, 2004
6796326 Gas pressure regulator Sep. 28, 2004
6789559 Pressure regulator Sep. 14, 2004
6722388 Multiple pressure regulator Apr. 20, 2004
6629544 Gas pressure-reducing valve Oct. 7, 2003
6578601 Liquid pressure regulator Jun. 17, 2003
6568418 Precision regulator May. 27, 2003
6564826 Flow regulator for water pump May. 20, 2003
6488046 Pressure reducer for compressed gases Dec. 3, 2002
6439261 Pressure responsive oil flow regulating supply valve Aug. 27, 2002
6382243 Pressure-reducing valve May. 7, 2002
6328054 Balanced fluid pressure regulator Dec. 11, 2001
6305415 Fluidic pressure regulator Oct. 23, 2001
6276392 Liquid pressure regulator Aug. 21, 2001
6227231 Pressure/flow rate control valve May. 8, 2001
6079434 Propane regulator with a balanced valve Jun. 27, 2000
6076549 Pressure control device Jun. 20, 2000
6053192 Low operating force pressure regulator Apr. 25, 2000

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