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Class Information
Number: 417/307
Name: Pumps > With condition responsive pumped fluid control > Pressure responsive relief or bypass valve
Description: Apparatus in which the fluid flow control means controls a bypass or relief line.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7585160 |
Hermetic compressor |
Sep. 8, 2009 |
| 7556479 |
Power steering pump relief system filter |
Jul. 7, 2009 |
| 7553134 |
Switch valve structure of fluid machine |
Jun. 30, 2009 |
| 7544052 |
Oil pump for an internal combustion engine |
Jun. 9, 2009 |
| 7488161 |
High pressure pump having downsized structure |
Feb. 10, 2009 |
| 7470117 |
Variable discharge fuel pump |
Dec. 30, 2008 |
| 7422422 |
Compressor assembly with pressure relief valve fittings |
Sep. 9, 2008 |
| 7377755 |
Multi-stage rotary compressor |
May. 27, 2008 |
| 7354253 |
Oil pump |
Apr. 8, 2008 |
| 7320577 |
Dual pump transmission |
Jan. 22, 2008 |
| 7290991 |
Dual oil supply pump |
Nov. 6, 2007 |
| 7281904 |
Transmission pump and filter |
Oct. 16, 2007 |
| 7179060 |
Variable discharge pump with two pumping plungers and shared shuttle member |
Feb. 20, 2007 |
| 7144230 |
Pulse fuel pump for a diaphragm carburetor |
Dec. 5, 2006 |
| 7134846 |
Radial piston pump with eccentrically driven rolling actuation ring |
Nov. 14, 2006 |
| 7011507 |
Positive displacement pump with a combined inertance value of the inlet flow path smaller than that of the outlet flow path |
Mar. 14, 2006 |
| 6942470 |
Motor pump system with axial through flow utilizing an incorporated flowmeter and pressure controller |
Sep. 13, 2005 |
| 6910502 |
Decoupled check-relief valve |
Jun. 28, 2005 |
| 6905317 |
Oil pump apparatus |
Jun. 14, 2005 |
| 6863504 |
Fluid pump relief valve |
Mar. 8, 2005 |
| 6854962 |
Pump system with high pressure restriction |
Feb. 15, 2005 |
| 6846162 |
Cylinder housing for air compressor |
Jan. 25, 2005 |
| 6830439 |
Electric fuel pump with universal relief valve installed in the pump inlet |
Dec. 14, 2004 |
| 6811383 |
Oil catching device and oil pump for an internal-combustion engine, and method of making and using same |
Nov. 2, 2004 |
| 6783333 |
Air compressor |
Aug. 31, 2004 |
| 6755625 |
Inlet throttle valve |
Jun. 29, 2004 |
| 6729854 |
Hydraulic pump manifold |
May. 4, 2004 |
| 6688855 |
Apparatus for increasing water pressure |
Feb. 10, 2004 |
| 6682316 |
Dispensing system for petrol-pumps, including a bypass and principle valve |
Jan. 27, 2004 |
| 6676389 |
Piston pump for increasing pressure, comprising a transfer piston and a pressure-control piston |
Jan. 13, 2004 |
| 6648610 |
Fuel injection system with structurally biased relief valve |
Nov. 18, 2003 |
| 6619928 |
Variable displacement pump |
Sep. 16, 2003 |
| 6607366 |
Variable clearance system for reciprocating compressors |
Aug. 19, 2003 |
| 6599093 |
Compressor having speed and intake regulation valve control |
Jul. 29, 2003 |
| 6585493 |
Hygienic self-priming centrifugal pump |
Jul. 1, 2003 |
| 6582203 |
Radial piston pump |
Jun. 24, 2003 |
| 6579074 |
Diaphragm type fuel pump |
Jun. 17, 2003 |
| 6575710 |
Compressor with blocked suction capacity modulation |
Jun. 10, 2003 |
| 6568919 |
Hydraulic pump manifold |
May. 27, 2003 |
| 6561773 |
Fuel supply pump for a vehicle and a fuel supply system equipped with said fuel supply pump |
May. 13, 2003 |
| 6544015 |
Worm for an eccentric screw pump or a subsurface drilling motor |
Apr. 8, 2003 |
| 6533552 |
System and methods for controlling rotary screw compressors |
Mar. 18, 2003 |
| 6517325 |
Air compressor and method of operating the same |
Feb. 11, 2003 |
| 6478549 |
Hydraulic pump with speed dependent recirculation valve |
Nov. 12, 2002 |
| 6461116 |
Crankcase pressurizing conduit for a swash plate type compressor |
Oct. 8, 2002 |
| 6454538 |
Motor protector in pocket on non-orbiting scroll and routing of wires thereto |
Sep. 24, 2002 |
| 6450778 |
Pump system with high pressure restriction |
Sep. 17, 2002 |
| 6447263 |
Fuel pump with auxiliary pumping chamber |
Sep. 10, 2002 |
| 6431844 |
High pressure pump having integral start valve |
Aug. 13, 2002 |
| 6428285 |
Hydraulic delivery device |
Aug. 6, 2002 |
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