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Class Information
Number: 137/565.35
Name: Fluid handling > Systems > With pump > With pump bypass
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8656950 |
Drag reduction of asphaltenic crude oils |
Feb. 25, 2014 |
| 8616236 |
Drag reduction of asphaltenic crude oils |
Dec. 31, 2013 |
| 8511340 |
Suction jet pump |
Aug. 20, 2013 |
| 8485222 |
Systems and methods for preventing oil migration |
Jul. 16, 2013 |
| 8220604 |
Damping force variable valve and shock absorber including the same |
Jul. 17, 2012 |
| 7954506 |
Automatic freeze protection system for domestic plumbing systems |
Jun. 7, 2011 |
| RE41861 |
Decoupled check-relief valve |
Oct. 26, 2010 |
| 7077160 |
Water pressure pump |
Jul. 18, 2006 |
| 7059345 |
Pump bypass system |
Jun. 13, 2006 |
| 7044157 |
By-pass valve unit for a high pressure liquid delivery unit |
May. 16, 2006 |
| 6920897 |
Potable water circulation system |
Jul. 26, 2005 |
| 6910502 |
Decoupled check-relief valve |
Jun. 28, 2005 |
| 6871661 |
Combination fitting |
Mar. 29, 2005 |
| 6799602 |
Combination fitting |
Oct. 5, 2004 |
| 6705344 |
Potable water circulation system |
Mar. 16, 2004 |
| 6543476 |
Relief valve for an oil pump |
Apr. 8, 2003 |
| 6497556 |
Fluid level control for a downhole well pumping system |
Dec. 24, 2002 |
| 6276395 |
Processing installation for rinsing water having an independent recycling filtering device |
Aug. 21, 2001 |
| 6123509 |
Pressure valve device for a cleaning apparatus |
Sep. 26, 2000 |
| 6029688 |
Water wheel for pumping chemical treatment into water stream |
Feb. 29, 2000 |
| 5921274 |
Internal relief and bypass valve for pumps and piping systems |
Jul. 13, 1999 |
| 5603344 |
Apparatus for recovering and saving chilled water in hot water lines having adjustable thermostatic control |
Feb. 18, 1997 |
| 5564317 |
One-piece pressure relief valve for transmission cooling system |
Oct. 15, 1996 |
| 5421362 |
System of plumbing for an over-the-road vehicle |
Jun. 6, 1995 |
| 5375619 |
Protective circuit for pressure and return |
Dec. 27, 1994 |
| 5318070 |
Electric faucet valve operator adapter |
Jun. 7, 1994 |
| 5285759 |
Fuel system |
Feb. 15, 1994 |
| 5156177 |
Flow loading unloader valve |
Oct. 20, 1992 |
| 5154202 |
Low forward pressure burst-high backpressure resistant rupture disc |
Oct. 13, 1992 |
| 5148792 |
Pressure-responsive fuel delivery system |
Sep. 22, 1992 |
| 5145328 |
Fuel supply unit for an oil burner |
Sep. 8, 1992 |
| 5099871 |
Low friction proportional unloading valve |
Mar. 31, 1992 |
| 5097857 |
Electro-hydraulic valve-actuator system |
Mar. 24, 1992 |
| 4981154 |
Fluid flow control device |
Jan. 1, 1991 |
| 4953582 |
Combined pressure regulator and relief valve having a single biasing means |
Sep. 4, 1990 |
| 4941502 |
Low pressure recirculation valve |
Jul. 17, 1990 |
| 4917570 |
Turbine shaft axial load protection system |
Apr. 17, 1990 |
| 4838311 |
Control system for a programmed spraying device |
Jun. 13, 1989 |
| 4833880 |
Fluidic set point amplifier apparatus and method, and uses thereof |
May. 30, 1989 |
| 4735225 |
Method and apparatus for drawing and regulating the output and pressure of a liquid additive |
Apr. 5, 1988 |
| 4569483 |
Apparatus for cleaning objects by spraying |
Feb. 11, 1986 |
| 4503885 |
Engine fuel supply system |
Mar. 12, 1985 |
| 4487224 |
Air switch and filter combination |
Dec. 11, 1984 |
| 4139019 |
Method and system for transporting natural gas to a pipeline |
Feb. 13, 1979 |
| 4022551 |
Variable capacity type gear pump |
May. 10, 1977 |
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