Matches 1 - 50 out of 70 1 2 >
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7143853 Roll-related reactive system  
A three-wheeled vehicle having a pair of front wheels and a single rear wheel is provided with a roll-related reactive system. The roll-related reactive system provides braking of at least one of...
6910744 Control device for compressed-air brakes  
The invention relates to a control device for compressed-air brakes having a control valve, comprising a housing, a piston rod, a piston, a second piston, a double-seat valve, having a control...
6655750 Combination inversion and relay or quick release valve assembly  
A combination valve assembly provides dual functionality within a single valve housing. In one example, the valve operates as a combination inversion valve and quick release valve. In another...
6264290 Single-operation valve assembly for braking systems and the like  
A single-operation valve assembly useful in such braking system applications, as well as others, includes a flow passage and a valve member located within the flow passage at a first position in...
6238010 Electropneumatic brake valve with release and running modes  
An electropneumatic brake controller of the present invention including a main reservoir, pneumatic brake pipe relay and first and second restrictions connected in series with the main reservoir,...
6186600 Automatic test connector adapter plate for AB pipe bracket  
A test connector adapter plate for use with a pipe bracket portion of a freight brake control valve of a railway freight vehicle and with a portable automated single car brake tester. The pipe...
6106079 Brake system valve having an anti-compounding feature  
A brake system valve having an anti-compounding feature is provided, comprising: a brake housing; a vent port in the housing; first and second control ports in the housing; a piston mounted within...
6042197 Air-drying system, in particular for rail vehicles  
5988766 Electropneumatical brake adaptor  
An adaptor for connecting brake pipe, brake cylinder, emergency and auxiliary reservoir ports on a standard pipe bracket to an electropneumatic control valve. The adaptor also includes threaded...
5971498 Electro-pneumatic valve control  
Electropneumatic brake control valve for control of brakes on a railway vehicle. It has a supply valve and release valve moved by a common displaceable actuator. The supply valve connects an air...
5758929 Variable capacity electropneumatic control valve  
A variable capacity electropneumatic control valve using analog electropneumatic supply and release valve to control the control valve output and a relay valves to add extra capacity when the...
5721683 Electronic discrete brake control system for a train  
A system for electronically controlling brakes on a train is responsive to a brake handle positionable into any one of a plurality of discrete positions. The discrete brake control system includes...
5709436 Arrangement for connecting a test device to a railroad car brake control valve device  
A pneumatic receptacle adapted to receive a pneumatic connector head of a test device is mounted in a universal location remote from the brake control valve of a railroad freight car. The remotely...
5695258 Railway manual brake control valve test unit  
A portable, single-car test unit for a railway freight brake control valve for manually executing pressure manipulations to evaluate the operating conditions of the control valve. The pipe bracket...
5673977 Fluid control system for tractor trailer brake system  
A fluid control system for use with vehicles, in particular, trailers, includes a branch conduit (19, 25, 42, 80, 96) which is to be connected to a pressure supply line (20) and a control line (22)...
5634696 Railway brake pipe bracket with access ports  
A pipe bracket for use in a freight brake control valve on a railway freight vehicle is provided. Four access ports are preferably provided on a first side of the pipe bracket. The freight car...
5538332 Vibration insulating members for piston valve assembly  
A piston valve assembly in which a piston member is outfitted with a plastic insulator between the metal piston member and a cover with which the piston member is otherwise engageable in one case...
5518304 Filter arrangement and mounting in railway brake pipe bracket  
A pipe bracket portion of a freight brake control valve having an improved filter arrangement. The pipe bracket portion has a first side with a service portion and an emergency portion mounted...
5509727 Ralway automatic brake control valve test unit  
A portable, microprocessor controlled single-car test unit for a railway freight brake control valve for automatically executing pressure manipulations to evaluate the operating conditions of the...
5467246 Arrangement for emulating an H-type relay air valve which is utilized in a railway braking system  
An H-5 relay air valve emulating circuit for use in an electropneumatic railway brake control equipment including an operational amplifier comparator and a solenoid relay. The operational amplifier...
5395164 Operating brake valve for an electrically and pneumatically actuated braking system in a motor vehicle  
An operating brake valve for an electrically and pneumatically actuated braking system in a motor vehicle has a movable thrust piece (2) arranged within a housing (1) and a balance piston (4)...
5346291 Fluid pressure control valve with valve member mounted on guide pin slidably carried by piston  
A fluid pressure responsive valve includes a valve member mounted on a guide pin slidably carried by a piston. A valve guide is engaged by one side of the valve element, and the piston engages the...
5286095 Air brake emergency control valves  
Control valve assemblies for regulating the parking/emergency spring brakes of a tractor trailer air brake system which include valve components for insuring that the spring brakes are not released...
5284384 Spring brake valve  
A valve assembly for use in conjunction with spring applied, air release parking brakes of the character found in heavy-duty truck-trailers which, in a single valve housing provides system pressure...
5261458 Pilot relay valve with load piston  
A relay valve for a fluid pressure braking system includes a relay piston and a load piston which is responsive to the pressure at the inlet port of the relay valve to exert a biasing force on the...
5236250 Full-function valve for heavy duty semi-trailer brake systems  
Within a single envelope or housing, this full-function valve integrates all of the emergency and service requirements of a tandem axle air brake system for heavy duty truck semi-trailers, thereby...
5190357 Air-actuated brake system for vehicles  
The preferred embodiment of the invention is a brake system comprised of a primary source of air under pressure, and independent secondary source of air under pressure, a primary relay, a secondary...
5172958 Air brake control valve system  
An air brake control system for use in truck trailers, including tandem trailers, having at each axle compressed-air spring brakes and service brakes with each trailer being coupled to receive...
5056873 Adaptive air braking system with correction for second order transient effects  
Method and apparatus for compensating for transient effects in pneumatically operated air brake system for a railway vehicle. A look up table or experimentally determined second order correction...
5046786 Combination brake valve module  
A pressurized fluid control module is provided for a tractor-trailer brake system to effect the appropriate braking function. The pressurized fluid control module is combined with pressure inlet...
5042883 Trailer braking system for a towing vehicle  
A trailer braking system for a towing vehicle has a trailer braking valve (26) is fed with a pressurized air supply which is modulated by the opening of the valve, as controlled by a first control...
4861115 Electrically-controlled motor vehicle brake system  
An electrically-controlled motor vehicle brake system, which responds to fluid pressure supplied from a common source. The system includes an electronic control system to process information and...
4768556 Brake system and relay valves for railroad trains  
A braking system for railroad freight trains and a novel relay valve for use in the system are disclosed. The relay valve permits the brake system to be configured so that the requirement for...
4733919 Integrated pressure exhaust valve and fluid coupling  
An integrated pressure exhaust valve and pneumatic coupling is used on a truck trailer for bringing air brake pressure from a tractor to the truck trailer. A gladhand coupling moiety is used for...
4653811 Relay valve device  
A relay valve device which is actuated by the presence of a control signal pressure to a higher pressure supply into a consumer circuit than when the control signal pressure is not present. The...
4645271 Parking brake control system  
A parking brake control device has a differential area shuttle valve which has an outlet connected to a brake actuator and a larger area of a poppet directed to an inlet connected to a control...
4603919 Dual control pressure medium brake system  
A pressure-medium brake system, which comprises multiple circuits and has associated with each brake cylinder or group of brake cylinders relay valves which are controllable by a control medium....
4586755 Railway brake control system arranged to limit maximum brake pressure during combined independent and automatic brake operation  
A brake control system for a railway vehicle having separately operated independent and automatic brake controls for controlling brake pressure via a double check valve and a multi-piston relay...
4572319 Automatic vehicle braking system  
The invention provides a parking brake system for automotive or delivery type vehicles, golf carts, etc. that applies the emergency or parking brake automatically after the engine is turned off or...
4557527 Electro-pneumatic brake system  
An electro-pneumatic brake system with a pressure control valve switched ahead of the brake cylinders is proposed, which connects the brake cylinders either with outside air or with a storage tank....
4530544 Pressure proportioning valves  
In an air pressure proportioning variable load valve for a vehicle compressed air braking system the operating mechanism for a self-lapping valve assembly includes a fluid pressure responsive...
4498710 Dual brake valves  
A dual brake valve assembly for use in fluid pressure-operated vehicle braking systems embodying two independent braking circuits comprises a housing provided with sets of primary and secondary...
4493510 Brake pressure control valve for tractor-trailer vehicles  
This invention relates to a brake pressure control valve and, more particularly, to a tractor-trailer control valve which includes a differential pressure surface relay piston that on one hand is...
4455051 Ratio control valve for tractor rear axles  
The invention relates to an improvement in a valve for a tractor air brake system for changing the pressure delivered to air brakes on a tractor rear axle during "bob tail" operation and...
4438980 Proportioning valve with pressure port communicating with stepped area of differential piston  
A pressure reducing valve is constricted with a stepped piston affording a pressure responsive area on one side responsive to the pressure at an output port and a smaller pressure responsive area...
4410218 Control valve for tractor rear axles  
A valve for a tractor air brake system for changing the pressure delivered to air brakes on the rear axle depending on whether the trailor is attached or whether the tractor is operating in the...
4121873 Vehicle air brake system with emergency features  
An air brake system for a vehicle having front service and parking brakes, and rear service and parking brakes, includes separate front service, rear service and parking air systems. In the event...
4118076 Control valve having reduced crack-open pressure  
A control valve having relay and proportioning pistons has an intermediate piston which controls air pressure access to a blind flow chamber. At a relatively low value of control air pressure, the...
4068902 Adaptive braking modulator with electrically activated relay valve  
An electrically actuated relay valve or adaptive braking modulator for a vehicle fluid pressure braking system includes a housing having a fluid pressure inlet, a pair of vents communicating with...
4030757 Tractor-mounted cargo-trailer brake control system  
Disclosed is a positive-pressure air brake system for a highway tractor and trailer combination in which the conventional mode of tractor-to-trailer control line connection is avoided and...
Matches 1 - 50 out of 70 1 2 >