| |
 |
|
Class Information
Number: 137/505.12
Name: Fluid handling > Line condition change responsive valves > With separate connected fluid reactor surface > With opening bias (e.g., pressure regulator) > Multi-stage
Description: Devices in series with another line pressure responsive valve to produce plural stage reduction.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8679694 |
Fluidic control system and method of manufacture |
Mar. 25, 2014 |
| 8656945 |
Pressure control valve assembly for containers adapted to contain compressed fluids |
Feb. 25, 2014 |
| 8640732 |
High pressure inlet regulator |
Feb. 4, 2014 |
| 8622081 |
Fluid flow control valve |
Jan. 7, 2014 |
| 8616228 |
Multi-stage ratio pressure regulator system |
Dec. 31, 2013 |
| 8550112 |
Multifunctional safety valve device with incorporated proportional pressure regulator |
Oct. 8, 2013 |
| 8448662 |
High inlet pressure three-stage pressure regulator |
May. 28, 2013 |
| 8424560 |
Multi-valve microfluidic devices and methods |
Apr. 23, 2013 |
| 8375983 |
Multi-stage fluid regulators |
Feb. 19, 2013 |
| 8286660 |
Valve body with dual sense mechanism |
Oct. 16, 2012 |
| 8240327 |
Pressure loaded service regulator with pressure balanced trim |
Aug. 14, 2012 |
| 8220479 |
Multi-stage ratio pressure regulator system |
Jul. 17, 2012 |
| 8177737 |
Drainage system for treating hydrocephalus |
May. 15, 2012 |
| 8151822 |
Integral overpressure monitoring device |
Apr. 10, 2012 |
| 8117839 |
Propane injection system |
Feb. 21, 2012 |
| 8087428 |
High pressure inlet regulator |
Jan. 3, 2012 |
| 7635005 |
Very small high pressure regulator |
Dec. 22, 2009 |
| 7575020 |
Multi stage pressure regulator |
Aug. 18, 2009 |
| 7565911 |
Two stage regulator method and apparatus |
Jul. 28, 2009 |
| 7352287 |
Pneumatic controller |
Apr. 1, 2008 |
| 7264896 |
Two-stage hybrid gas pressure regulator |
Sep. 4, 2007 |
| 7191768 |
Gas fuel feed device |
Mar. 20, 2007 |
| 6948519 |
Device for regulating the flow of gas toward user equipment |
Sep. 27, 2005 |
| 6923197 |
Pressure regulator with tamper-proof safety feature |
Aug. 2, 2005 |
| 6901952 |
Gas flow regulation system |
Jun. 7, 2005 |
| 6722388 |
Multiple pressure regulator |
Apr. 20, 2004 |
| 6691798 |
Variable hand pressure activated power tool |
Feb. 17, 2004 |
| 6591851 |
Seal-gas valve device |
Jul. 15, 2003 |
| 6488046 |
Pressure reducer for compressed gases |
Dec. 3, 2002 |
| 6253708 |
Remote controlled drinker system and drinker line control valve |
Jul. 3, 2001 |
| 6186168 |
Pressure Regulator |
Feb. 13, 2001 |
| 6176256 |
Gas pressure-reducing valve |
Jan. 23, 2001 |
| 6173735 |
Method and apparatus for regulating gas flow |
Jan. 16, 2001 |
| 5996617 |
Low pressure regulator |
Dec. 7, 1999 |
| 5868154 |
Propane supply system with secondary containment tank |
Feb. 9, 1999 |
| 5797425 |
Three stage gas pressure regulator |
Aug. 25, 1998 |
| 5755254 |
Two stage pressure regulator |
May. 26, 1998 |
| 5740833 |
Gas pressure regulator |
Apr. 21, 1998 |
| 5730166 |
Fluid pressure reduction |
Mar. 24, 1998 |
| 5598869 |
Pressure regulating unit |
Feb. 4, 1997 |
| 5520206 |
Exhaust reduction system for control valves |
May. 28, 1996 |
| 5515930 |
Handheld pneumatic power tool apparatus |
May. 14, 1996 |
| 5465750 |
Two-stage regulator |
Nov. 14, 1995 |
| 5456281 |
Gas regulator with double stabilizing function |
Oct. 10, 1995 |
| 5456280 |
Process-chamber flow control system |
Oct. 10, 1995 |
| 5330031 |
Alternative fuel system for powered industrial vehicle |
Jul. 19, 1994 |
| 5203371 |
Gas regulator with several stage adjustment |
Apr. 20, 1993 |
| 5186208 |
Two-step reduction valve especially for gas cylinders |
Feb. 16, 1993 |
| 5103861 |
Sealing means for a two-stage gas regulator for liquefied-gas containers |
Apr. 14, 1992 |
| 4909278 |
Gas flow control system with pilot gas booster |
Mar. 20, 1990 |
|
|
|
