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Class Information
Number: 251/321
Name: Valves and valve actuation > Reciprocating valve > Push or pull operator > Biased > Spring
Description: Valves having a spring biased valve.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7389801 |
Filling system for an anesthetic evaporator |
Jun. 24, 2008 |
| 7377455 |
Portable sprayer |
May. 27, 2008 |
| 7319638 |
Hydraulic oscillator for use in a transmitter valve |
Jan. 15, 2008 |
| 7314211 |
Connector for a compressed-gas cannister and a fastening appliance |
Jan. 1, 2008 |
| 7222836 |
Self-balancing poppet |
May. 29, 2007 |
| 7207348 |
Machine comprising a safety valve for the supply of pressurised fluid |
Apr. 24, 2007 |
| 7189033 |
Apparatus and methods for thrust sensing valves |
Mar. 13, 2007 |
| 7066446 |
Hydraulic valve arrangement |
Jun. 27, 2006 |
| 7040320 |
Valve device for controlled supply of a pressure fluid |
May. 9, 2006 |
| 7036792 |
Valve arrangement for a vacuum pump |
May. 2, 2006 |
| 7021605 |
Regulator valve |
Apr. 4, 2006 |
| 6981511 |
Method and apparatus for servicing a pressurized system |
Jan. 3, 2006 |
| 6981692 |
Pushbutton valve assembly |
Jan. 3, 2006 |
| 6969046 |
Venting mechanism |
Nov. 29, 2005 |
| 6929240 |
Solenoid valve |
Aug. 16, 2005 |
| 6811142 |
Valve device |
Nov. 2, 2004 |
| 6796546 |
Valve assembly |
Sep. 28, 2004 |
| 6695970 |
Actuated bypass valve and method of using same for reducing swimming pool energy consumption |
Feb. 24, 2004 |
| 6638038 |
Shoe with inflatable bladder and secure deflation valve |
Oct. 28, 2003 |
| 6616124 |
Spool valve for controlled dampers |
Sep. 9, 2003 |
| 6604727 |
Control valve |
Aug. 12, 2003 |
| 6491282 |
Poppet release for poppet valve of a fuel dispensing nozzle |
Dec. 10, 2002 |
| 6488264 |
Governor valve device in a pressure fluid operated tool |
Dec. 3, 2002 |
| 6471184 |
Spring assisted electric/electronic globe control valve |
Oct. 29, 2002 |
| 6467657 |
Pump assembly with one piece piston |
Oct. 22, 2002 |
| 6409487 |
Shoe with inflatable bladder and secure deflation valve |
Jun. 25, 2002 |
| 6409486 |
Shoe with inflatable bladder and secure deflation valve |
Jun. 25, 2002 |
| 6367775 |
Universal fill valve |
Apr. 9, 2002 |
| 6343823 |
Vacuum pickup tool |
Feb. 5, 2002 |
| 6322051 |
Elastomeric molded valve stem and spring hat |
Nov. 27, 2001 |
| 6321780 |
Valve for controlling flow rate of gas |
Nov. 27, 2001 |
| 6322052 |
Ventilation valve |
Nov. 27, 2001 |
| 6279526 |
Valve gear for an internal-combustion engine |
Aug. 28, 2001 |
| 6186477 |
Gas by-pass valve |
Feb. 13, 2001 |
| 6068163 |
Fuel dispensing apparatus |
May. 30, 2000 |
| 6019350 |
Hand held control device and associated method |
Feb. 1, 2000 |
| 5960485 |
Bidet |
Oct. 5, 1999 |
| 5918782 |
Pump assembly with sprayer |
Jul. 6, 1999 |
| 5853071 |
Bleed valve for bleeding fluid from a hydraulic circuit |
Dec. 29, 1998 |
| 5826758 |
Bakery mix flow control nozzle |
Oct. 27, 1998 |
| 5823397 |
Personal hygiene liquids dispenser with an improved valve seat |
Oct. 20, 1998 |
| 5803313 |
Hand held fluid dispensing apparatus |
Sep. 8, 1998 |
| 5791328 |
Air valve for marking pellet gun |
Aug. 11, 1998 |
| 5775364 |
Connector for guarantee tap |
Jul. 7, 1998 |
| 5697120 |
Wet/dry cleaner |
Dec. 16, 1997 |
| 5690312 |
Faucet control mechanism |
Nov. 25, 1997 |
| 5417376 |
Bone eliminator discharge regulator |
May. 23, 1995 |
| 5398737 |
Connecting mechanism |
Mar. 21, 1995 |
| 5381818 |
Shut-off valve and sealing ring |
Jan. 17, 1995 |
| 5337783 |
Poppet valve |
Aug. 16, 1994 |
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