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Class Information
Number: 251/322
Name: Valves and valve actuation > Reciprocating valve > Push or pull operator > Biased > Spring > Spring stop on valve stem
Description: Valves wherein a stop (e.g., a collar) for the spring is provided on the valve stem.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7222603 |
Subunit for an additional control valve device used for an intake pipe of a reciprocating internal combustion engine |
May. 29, 2007 |
| 7201359 |
Manual pressing device for a flusher |
Apr. 10, 2007 |
| 7165327 |
Method for installing a valve member in an auxiliary control valve device |
Jan. 23, 2007 |
| 7025755 |
Medical suctioning apparatus and methods of use |
Apr. 11, 2006 |
| 7000898 |
Vertical shut-off valve |
Feb. 21, 2006 |
| 6994227 |
vacuum container to preserve food |
Feb. 7, 2006 |
| 6802487 |
Flow regulating apparatus for a fluid, in particular a pneumatic choke valve |
Oct. 12, 2004 |
| 6691898 |
Push button foam dispensing device |
Feb. 17, 2004 |
| 6676108 |
Control valve |
Jan. 13, 2004 |
| 6471667 |
Medical suctioning methods |
Oct. 29, 2002 |
| 6371441 |
Fuel injection valve |
Apr. 16, 2002 |
| 6357723 |
Amplified pressure air driven diaphragm pump and pressure relief valve therefor |
Mar. 19, 2002 |
| 6254061 |
Medical suction valve |
Jul. 3, 2001 |
| 6070855 |
Minor-amount release valve for a hand air pump |
Jun. 6, 2000 |
| 5971956 |
Medical suctioning apparatus and methods of use |
Oct. 26, 1999 |
| 5954487 |
Fuel pump control valve assembly |
Sep. 21, 1999 |
| 5934643 |
Valve arrangement |
Aug. 10, 1999 |
| 5919174 |
Suction valve assembly |
Jul. 6, 1999 |
| 5749561 |
Plug assembly |
May. 12, 1998 |
| 5697510 |
Container and valved closure |
Dec. 16, 1997 |
| 5630393 |
Anti-turbo device |
May. 20, 1997 |
| 5606989 |
Self-venting valve arrangement |
Mar. 4, 1997 |
| 5511763 |
Foot operated stop valve |
Apr. 30, 1996 |
| 5497740 |
Ceramic valve for internal combustion engines having a reduced tendency to stress fracture |
Mar. 12, 1996 |
| 5478049 |
Quick drain valve |
Dec. 26, 1995 |
| 5470044 |
Safety faucet |
Nov. 28, 1995 |
| 5456448 |
Touch button controlled water stop |
Oct. 10, 1995 |
| 5449144 |
Faucet valve with safety handle |
Sep. 12, 1995 |
| 5449145 |
Valve device for controlling flows in surgical applications |
Sep. 12, 1995 |
| 5433410 |
Drain valve |
Jul. 18, 1995 |
| 5421552 |
Foot-operated valve |
Jun. 6, 1995 |
| 5407173 |
Valve for gas burning torch |
Apr. 18, 1995 |
| 5397024 |
Structure of container |
Mar. 14, 1995 |
| 5364070 |
High pressure micro valve |
Nov. 15, 1994 |
| 5351710 |
Inflation mechanism for inflatable article of manufacture |
Oct. 4, 1994 |
| 5346381 |
Apparatus for preparation of samples for spectrographic analysis |
Sep. 13, 1994 |
| 5344120 |
Airless spray gun needle assembly |
Sep. 6, 1994 |
| 5234015 |
Gas supply mechanism with safety device |
Aug. 10, 1993 |
| 5228646 |
Latching trumpet valve for medical infusions |
Jul. 20, 1993 |
| 5198241 |
Apparatus for preparation of samples for spectrographic analysis |
Mar. 30, 1993 |
| 5112203 |
Vessel vacuum release |
May. 12, 1992 |
| 5087018 |
Fluid flow control valve |
Feb. 11, 1992 |
| 5064168 |
Spool valve with offset outlet |
Nov. 12, 1991 |
| 5045055 |
Flow control valve assembly for syringes |
Sep. 3, 1991 |
| 5002086 |
Plastic control valve |
Mar. 26, 1991 |
| 4943033 |
Flow control valve |
Jul. 24, 1990 |
| 4903944 |
Valve assembly and method |
Feb. 27, 1990 |
| 4854544 |
Fluid flow control valve |
Aug. 8, 1989 |
| 4852852 |
Hydraulic valve actuating device |
Aug. 1, 1989 |
| 4729543 |
Valve |
Mar. 8, 1988 |
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