| Patents for B60T 15 - Construction, arrangement, or operation of valves incorporated in power brake systems and not covered by groups or (4,770) |
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| 11/15/1977 | US4058348 Brake apparatus with a combined brake cylinder and reservoir |
| 11/15/1977 | US4058345 Brake apparatus including control valve with integral check valve |
| 10/04/1977 | US4052110 Fluid pressure brake system with electronically assisted application and release |
| 09/27/1977 | US4050749 Control valve assemblies for vehicle anti-skid braking systems |
| 09/27/1977 | US4050746 Inversion brake valve and system therefor |
| 09/27/1977 | US4050745 Brake control valve apparatus |
| 08/30/1977 | US4045095 Emergency portion for brake control valve |
| 08/30/1977 | US4045094 Relay valve combined with a load-sensing proportion valve |
| 08/30/1977 | US4045093 Dynamic blending with a spring-applied fluid pressure released service brake including cojoint spring and fluid pressure emergency feature |
| 08/23/1977 | US4043606 Rail vehicle brake pipe valve arrangement having a fluid pressure drop detector and a vent valve controlled thereby for brake pipe pressure gradient reduction |
| 08/23/1977 | US4043605 Emergency portion for a brake control valve |
| 08/23/1977 | US4043604 Emergency portion for a brake control valve |
| 08/23/1977 | US4043351 Fluid valve including electrical circuit control |
| 08/16/1977 | US4042281 Service and emergency trailer valve |
| 07/26/1977 | US4037880 Emergency brake valve device for propogating an emergency brake application |
| 07/05/1977 | US4033632 Control valve device with change-over means for direct or graduated release operation |
| 07/05/1977 | US4033631 Brake control mechanism |
| 07/05/1977 | US4033629 Automatic freight car brake apparatus with spring-applied fluid-pressure-released hand brake |
| 06/21/1977 | US4030757 Tractor-mounted cargo-trailer brake control system |
| 06/07/1977 | US4027922 Hydraulic servo-brake arrangement for double circuit brakes |
| 05/31/1977 | US4026609 Pressure reduction and pressure reduction rate sensitive emergency vent valve |
| 05/24/1977 | US4025126 Brake control valve device with movable control reservoir charging valve |
| 05/24/1977 | US4025125 Fluid pressure operable brake control valve apparatus |
| 05/03/1977 | US4021079 Blending valve for electro-pneumatic brakes |
| 04/26/1977 | US4019525 Tractor protection valve |
| 04/19/1977 | US4018485 Fluid pressure braking system with parking brake-service brake interlock |
| 04/12/1977 | US4017217 Overspeed protection system |
| 04/12/1977 | US4017125 Inversion brake valve and system therefor |
| 03/29/1977 | US4014580 Emergency brake valve device for railway vehicles |
| 03/22/1977 | US4013322 Brake apparatus providing permanent suppression of a train control brake application |
| 03/08/1977 | US4010983 Dual brake circuit valve assembly |
| 02/08/1977 | US4006939 Air pressure modulated brake valve system |
| 02/01/1977 | US4005759 Solenoid-operated valve |
| 01/11/1977 | US4002375 Service portion for brake control valves |
| 01/11/1977 | US4002374 Trailer air distribution valve |
| 01/11/1977 | US4002318 Electromagnetic pressure control valve for incompressible media |
| 12/28/1976 | US3999462 Brake delay valve |
| 12/21/1976 | US3998495 Locking dashboard control valve |
| 11/30/1976 | US3994536 Brake-release accelerating device and automatic gradual-discharge fluid brake |
| 11/16/1976 | US3992065 Brake control valve device for fluid pressure operable dual brake systems for motor vehicles |
| 11/16/1976 | US3992062 Combination fluid pressure and electric trip cock emergency brake apparatus for railway vehicles |
| 11/02/1976 | US3989063 Electromagnetic 3-way valve |
| 10/26/1976 | US3988044 Continual quick service valve device with fast charging means |
| 10/26/1976 | US3988041 Apparatus for preventing release of an emergency brake application prior to a complete stop of the train |
| 10/12/1976 | US3985401 Apparatus for varying the time between initiation and subsequent release of an emergency brake application |
| 10/05/1976 | US3984149 Compressed air braking system |
| 09/28/1976 | US3982795 Multi-circuit air-brake system, in particular for motor vehicles |
| 09/28/1976 | US3982791 Brake apparatus to provide power cut off and a service brake application upon train separation |
| 08/03/1976 | US3972341 Shutoff and exhaust valve for air brakes |
| 07/20/1976 | US3970111 Electromagnetic 3-way valve arrangement |
| 07/06/1976 | US3967864 Fluid brake control system |
| 07/06/1976 | US3967709 Interlock system for parking brake and transmission control |
| 06/29/1976 | US3966271 Fluid brake control system |
| 06/29/1976 | US3966270 Fluid brake control system |
| 06/29/1976 | US3966269 Fluid brake control system |
| 04/27/1976 | US3953079 Fluid pressure braking system including a pressure differential responsive valve device |
| 04/27/1976 | US3952993 Dual rate valve assembly |
| 04/20/1976 | US3951468 Air brake system for railway vehicles |
| 04/20/1976 | US3951464 Truck-trailer brake system with independent control of trailer brakes |
| 04/20/1976 | US3951463 Fluid pressure braking system including a pressure differential responsive valve device |
| 04/06/1976 | US3948571 Valve for controlling pressure medium actuated brakes for railway and other vehicles |
| 03/23/1976 | US3945401 Combination valve |
| 03/16/1976 | US3944295 Towing valve arrangement for fail-safe brake system |
| 03/16/1976 | US3944294 Combined load-sensing proportion and relay valve for an air brake system |
| 03/02/1976 | US3941432 Change-over valve for two-line trailer brake systems with at least one brake circuit |
| 03/02/1976 | US3941429 Brake control system for vehicles |
| 03/02/1976 | US3941155 Hydraulic control valve assemblies |
| 03/02/1976 | US3941142 Flow-divider valve |
| 02/03/1976 | US3936097 Relay valve combined with a load-sensing proportion valve |
| 01/27/1976 | US3934942 Dual circuit brake valve |