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Class Information
Number: 303/69
Name: Fluid-pressure and analogous brake systems > Releasing > Motor > Quick
Description: Means for securing rapid release of the motor, usually through other than the regular channels.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7255122 |
Enhanced exhaust flow control feature |
Aug. 14, 2007 |
| 6655750 |
Combination inversion and relay or quick release valve assembly |
Dec. 2, 2003 |
| 6305759 |
Trailer ABS modulator with direct exhaust and control line/volume drain capability |
Oct. 23, 2001 |
| 6116280 |
Spring brake valve having a balance piston with integral quick release |
Sep. 12, 2000 |
| 5613741 |
Air brake pilot adaptor |
Mar. 25, 1997 |
| 5593214 |
Railway parking braking apparatus |
Jan. 14, 1997 |
| 5460435 |
System for initiating rear braking in a railway train and air sensor for use with the same |
Oct. 24, 1995 |
| 5425572 |
Quick-release valve for a vehicle air release brake system |
Jun. 20, 1995 |
| 5425571 |
Split system full-funtion valve system for heavy duty semi-trailer brake systems |
Jun. 20, 1995 |
| 5390988 |
Air brake pilot adaptor |
Feb. 21, 1995 |
| 5152585 |
Electro-hydraulic braking system with master cylinder piloted valve |
Oct. 6, 1992 |
| 5129243 |
Rotary security lock apparatus for gladhand brake line couplers |
Jul. 14, 1992 |
| 5096266 |
Dual-response vent valve device |
Mar. 17, 1992 |
| 5078455 |
Differential pressure regulator quick release valve in a pneumatic braking system |
Jan. 7, 1992 |
| 5072995 |
Slip control mechanism of a car |
Dec. 17, 1991 |
| 5046786 |
Combination brake valve module |
Sep. 10, 1991 |
| 5046788 |
Pressure piloted release valve |
Sep. 10, 1991 |
| 4878513 |
Quick vent valve for air brake line |
Nov. 7, 1989 |
| 4875739 |
Independent continual quick service valve device |
Oct. 24, 1989 |
| 4861115 |
Electrically-controlled motor vehicle brake system |
Aug. 29, 1989 |
| 4859005 |
Three-port fluid valve |
Aug. 22, 1989 |
| 4854648 |
Automatic air braking system |
Aug. 8, 1989 |
| 4854647 |
Automatic air brake systems with accelerated exhaustion of the brake line |
Aug. 8, 1989 |
| 4848849 |
Acceleration apparatus for connection with a pilot operated compressed-air brake |
Jul. 18, 1989 |
| 4830438 |
Freight brake emergency valve |
May. 16, 1989 |
| 4819993 |
Freight brake control valve device having improved quick service function |
Apr. 11, 1989 |
| 4773713 |
Brake control system |
Sep. 27, 1988 |
| 4733919 |
Integrated pressure exhaust valve and fluid coupling |
Mar. 29, 1988 |
| 4668024 |
Solenoid-operated hydraulic control device for anti-skid brake system |
May. 26, 1987 |
| 4596265 |
Quick release valve |
Jun. 24, 1986 |
| 4592598 |
Pulsating brake accelerator for rail vehicle air brake |
Jun. 3, 1986 |
| 4586756 |
Brake control valve system for rail vehicle air brake |
May. 6, 1986 |
| 4577910 |
Quick release valve arrangement |
Mar. 25, 1986 |
| 4552411 |
Pulsating brake accelerator for rail vehicle air brake |
Nov. 12, 1985 |
| 4493511 |
Combined BC pressure-maintaining valve and quick service bulb exhaust valve |
Jan. 15, 1985 |
| 4463991 |
Release valve apparatus for indirect air brakes of rail vehicles |
Aug. 7, 1984 |
| 4453780 |
Valve assemblies |
Jun. 12, 1984 |
| 4384745 |
Pressure reducer for hydraulic brake systems |
May. 24, 1983 |
| 4204555 |
Exhaust valve assembly |
May. 27, 1980 |
| 4188072 |
Brake accelerator device for an air brake system of a railway vehicle |
Feb. 12, 1980 |
| RE30079 |
Fluid brake control system |
Aug. 21, 1979 |
| 4145090 |
Continual quick service valve device |
Mar. 20, 1979 |
| 4139239 |
Brake accelerator for a fluid-pressure brake system having a brake control valve |
Feb. 13, 1979 |
| 4125293 |
Emergency portion for brake control valve |
Nov. 14, 1978 |
| 4125294 |
Fluid pressure control valve device arranged for fail-safe operation |
Nov. 14, 1978 |
| 4119351 |
Air brake system with pressure holding valve |
Oct. 10, 1978 |
| 4108501 |
Brake accelerator for air brake system of a railway vehicle |
Aug. 22, 1978 |
| 4103977 |
Vehicle braking control valve apparatus for quick service operation |
Aug. 1, 1978 |
| 4095850 |
Brake control valve apparatus |
Jun. 20, 1978 |
| 4090738 |
Braking system for tractor-trailer combinations |
May. 23, 1978 |
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