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Class Information
Number: 137/493.8
Name: Fluid handling > Line condition change responsive valves > Bi-directional flow valves > Axes of ports parallel
Description: Apparatus wherein the axis of one valve port is parallel to the axis of the second valve port. See the definition of valve port under subclass 493.7.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7383855 |
Sanitary tank vent valve |
Jun. 10, 2008 |
| 7363940 |
Flow-rate restrictor insert for orifice expansion device |
Apr. 29, 2008 |
| 7320334 |
Valve Assembly |
Jan. 22, 2008 |
| 7296586 |
Gas-regulating unit for regulating a gas pressure in a gas-tight tank |
Nov. 20, 2007 |
| 7207350 |
Pressure valve |
Apr. 24, 2007 |
| 7096883 |
Combined check/pressure control valve |
Aug. 29, 2006 |
| 7080659 |
Damper valve and hydraulic power steering apparatus using the same |
Jul. 25, 2006 |
| 6729345 |
Sealing valve arrangement |
May. 4, 2004 |
| 6629621 |
Gauge hatch with liquid seal |
Oct. 7, 2003 |
| 6612321 |
Damping valve for power steering |
Sep. 2, 2003 |
| 6604544 |
Safety valve of tank for storing and carrying oil or chemical substance |
Aug. 12, 2003 |
| 6568415 |
Storing device for easily polymerizable and coagulating liquid substance and method for pressure control thereof |
May. 27, 2003 |
| 6561211 |
Fuel tank vent control valve |
May. 13, 2003 |
| 6546727 |
Hydraulic system |
Apr. 15, 2003 |
| 6543473 |
Damper valve and a hydraulic power steering device using the same |
Apr. 8, 2003 |
| RE37989 |
Pressure relief valve for pressure equalization between a closed space and the surrounding atmosphere |
Feb. 18, 2003 |
| 6470909 |
Hydraulic system |
Oct. 29, 2002 |
| 6457613 |
Container equipped with protective seal |
Oct. 1, 2002 |
| 6408913 |
Device for inflating and deflating a tire inner tube, inner tube and wheel formed by a tire and a rim inside which the inner tube is arranged |
Jun. 25, 2002 |
| 6405750 |
Disk pack valve assembly for a hydraulic circuit |
Jun. 18, 2002 |
| 6401755 |
Damping valve |
Jun. 11, 2002 |
| 6305413 |
Mixing adaptor system |
Oct. 23, 2001 |
| 6305412 |
Double acting pressure relief valve with low pressure seal |
Oct. 23, 2001 |
| 6298873 |
Two-way check valve |
Oct. 9, 2001 |
| 6263907 |
Valve device of a storage tank for transporting oils or chemical compounds |
Jul. 24, 2001 |
| 6234190 |
Mixing adaptor with rupturable membrane |
May. 22, 2001 |
| 6234196 |
Mixing adaptor and system |
May. 22, 2001 |
| 6231323 |
High pressure reciprocating pump |
May. 15, 2001 |
| 6182687 |
Pressure-dependent valve for a vibration damper |
Feb. 6, 2001 |
| 6168400 |
Check valve module |
Jan. 2, 2001 |
| 6164320 |
Damper valve for hydraulic power steering device |
Dec. 26, 2000 |
| 6148853 |
Damper valve for hydraulic power steering device |
Nov. 21, 2000 |
| 6142167 |
Tanker roll shut-off vent valve assembly |
Nov. 7, 2000 |
| 6062250 |
Fuel cut device and structure for connecting together a plurality of fuel cut devices |
May. 16, 2000 |
| 6056005 |
Vent valve with liquid seal |
May. 2, 2000 |
| 6029706 |
Valve of a storage tank for transporting oils or chemical compounds |
Feb. 29, 2000 |
| 6019126 |
Remote function verification of low pressure and vacuum relief devices |
Feb. 1, 2000 |
| 6006944 |
Battery storage vault |
Dec. 28, 1999 |
| 5960822 |
Step valve |
Oct. 5, 1999 |
| 5950670 |
Vacuum cup safety device |
Sep. 14, 1999 |
| 5913330 |
Pressure/vacuum relief valve assembly |
Jun. 22, 1999 |
| 5894741 |
Universal housing body for an expansion device having a movable orifice piston for metering refrigerant flow |
Apr. 20, 1999 |
| 5873384 |
Pressure relief valve for pressure equalization between a closed space and the surrounding atmosphere |
Feb. 23, 1999 |
| 5860447 |
In line pressure regulator valve with passive pressure release |
Jan. 19, 1999 |
| 5853162 |
Electromagnetic control valve responsive to positive and negative pressures |
Dec. 29, 1998 |
| 5836349 |
Bidirectional flow control device |
Nov. 17, 1998 |
| 5730183 |
Valve for venting a container |
Mar. 24, 1998 |
| 5725016 |
Pressure compensating valve for a fuel tank |
Mar. 10, 1998 |
| 5715862 |
Bidirectional flow control device |
Feb. 10, 1998 |
| 5706670 |
Bidirectional meterd flow control device |
Jan. 13, 1998 |
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