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3910646 |
Electro-pneumatic air brake valve and system compatible with a skid control system
A vehicle brake actuation system is disclosed containing fluid pressure to operate brake actuators for effectively combining an electro-penumatic relay system to function with a skid control...
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3910641 |
Brake system for an articulated carrier
A brake system for a wheeled carrier which includes a plurality of separate sections flexibly joined into an articulated vehicle, the system including means for independently braking the various...
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3909044 |
Trailer hitch
A device rendering a semitractor-trailer arrangement resistant to jackknifing through a gyroscopic action activating braking mechanisms upon detection of sudden sideways, i.e., lateral, movement of...
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3908782 |
Automatic stability control system
An automatic stability control system is provided which senses the lateral acceleration of a vehicle by way of a pendulum-type transducer, or the like, to provide lateral acceleration signals to an...
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3909075 |
Towed vehicle electric brake control system
An electronic brake control for trailers utilizing solenoid operated electric brakes wherein trailer braking is controlled by sensing the rate of deceleration of the towing and towed vehicle...
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3907071 |
Foolproof control system for trailer brakes with break-away safety
A control system of the type which provides "break-away" safety action to engage the elecrically actuatable brakes in a trailer pulled by a towing vehicle, the brakes being energized under such...
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3900227 |
Brake control arrangement for skidders
A control system for a dual brake system adapted to be used with articulated vehicles such as logging skidders. The brake control system is controlled by a pair of valves inter-connected to be...
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3899216 |
Braking system for a multi-car vehicle
In a multi-car vehicle system, there are transducer means operative with the coupler at each end of each car for sensing the coupling forces acting on the respective couplers. A common braking...
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3897979 |
Trailer brake control system
A trailer brake control system which includes a housing having a sealed compartment filled with a damping liquid and a strain gauge decelerometer and inclinometer transducer mounted in the sealed...
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3895683 |
Lateral acceleration sensing system
A system is disclosed which senses the lateral acceleration of a vehicle to actuate an apparatus related thereto. The sensing system comprises two pendulums, one sensing lateral forces in one...
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3894773 |
Differential braking system for tractor trailer trucks
The use of differential braking of tractor front wheels in such a way as to maintain negligible angular rates between the tractor and trailer while braking, so as to produce balanced braking forces...
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3893692 |
Combination vehicle stabilizer compensated to prevent automatic brake application in normal turn or in passing
An anti-sway apparatus for use in a tow vehicle-trailer braking system to provide the wheel brakes of the trailer with an actuation signal sufficient to initiate a lesser acceleration in the...
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3892444 |
Pneumatic brake system
A failsafe, foolproof control valve for a tractor-trailer air brake system which, among its other features, permits the tractor brakes to remain in a parked position while the trailer system is...
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3887238 |
Tractor-trailer braking system with variable motor speed control device
A vehicle brake system, particularly adapted for tractor and trailer usage, in which the first brake subsystem, on the tractor, includes a master cylinder operating the tractor brakes in response...
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3884529 |
Trailer brake cylinder pressure varied in accordance with variations of tractor brake cylinder pressure in response to tractor wheel slip
The invention covers a pressure-operated braking apparatus for tractor trailer motor vehicles with brake cylinders, where the tractor brake cylinder pressures can be regulated individually or in...
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3884530 |
Apparatus for regulating the control current to the electric brake system of a trailer
An apparatus for regulating the control current from the brake system of a tractor to the electric brake system of a trailer comprises a brake regulator connectible to the brake system of the...
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3880472 |
Hydraulic braking system for a trailer
A tow vehicle-trailer braking system where a transducer in the brake line of the tow vehicle and a transducer in the brake line of the trailer are evaluated by a comparator to develop an...
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3880473 |
Emergency Control Valve
A brake control system for a towed vehicle which includes an emergency control valve operative in combination with an anti-skid system to provide emergency brake control in the event service...
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3869177 |
Pneumatic anti-skid control brake system with an emergency brake control valve
A brake control system for a towed vehicle which includes an emergency control valve operative in combination with an anti-skid system to provide emergency brake control in the event service...
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3862782 |
SPRING BRAKE CHAMBER CONTROL VALVE
A control valve for use in a vehicle air brake system to apply brake releasing pressure to spring-actuated brakes. The valve includes a protection valve for the vehicle service tank, as well as a...
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3861761 |
TRAILER BRAKE CONTROL VALVE FOR DUAL-CIRCUIT PNEUMATIC BRAKES OF ROAD VEHICLES
A first piston is displaceable in a housing and has a first piston portion having a larger effective surface and movable in one direction. A second piston portion normally disengaged from the first...
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3861489 |
MERCURY SWITCH BRAKING SYSTEM
A system is disclosed for sensing the lateral acceleration (centrifugal force) on an automobile which is towing a trailer and automatically applying the brakes of the trailer to prevent the lateral...
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3856363 |
ADJUSTABLE LINKAGE FOR TRANSMITTING THE OUTPUT FROM A SENSOR TO A CONTROL VALVE
In a tow vehicle-trailer braking system, a linkage arrangement for transmitting the output signal from a sensor to a control valve in response to an input force to operate a brake applying...
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3856362 |
ELECTRONICALLY CONTROLLED SOLENOID REGULATED SERVOMOTOR
An electrical circuit for operating a solenoid controlled servomotor which supplies an operational fluid under pressure to the wheel brakes of a trailer in response to an actuation signal which is...
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3853357 |
VEHICLE PILOT PRESSURE CONTROLLED BRAKE SYSTEM WITH WHEEL LOCK CONTROL MODULATING MEANS
An air brake system of the type used in some trucks includes an air compressor, suitable wet and service tanks, a brake application valve controlled by the brake pedal and actuated by the vehicle...
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3847446 |
SKID CONTROL SYSTEM FOR TANDEM AXLED VEHICLES
A skid control system common to a pair of closely spaced wheels located on closely spaced axles, such as in a tandem axle arrangement with the pair of wheels being those on the same side of a...
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3843206 |
BRAKING SYSTEMS FOR VEHICLES
A fail safe tractor-trailer braking system has brake applying springs operating on the trailer brakes through piston and cylinder devices to which hydraulic fluid under pressure is supplied from...
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3840276 |
CONTROL CIRCUIT FOR AUTOMATIC BRAKE SYSTEM
The invention describes a control circuit for use with an automobile brake system in vehicles having a towed portion and a towing portion. The control circuit includes a control unit responsive to...
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3836205 |
HYDRAULIC BRAKE SYSTEM FOR TRAILERS CONNECTED WITH MECHANICALLY BRAKED TOWING VEHICLES
A hydraulic brake system for a trailer which is coupled to a mechanically braked towing vehicle has an electronic regulator circuit receiving signals from a first transducer which indicates the...
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3834767 |
TRAILER AUXILIARY HYDRAULIC BRAKE SYSTEM
A trailer auxiliary hydraulic brake system completely independent of the conventional brake system and including a wheel-driven hydraulic pump, an accumulator, a main brake control valve, a back-up...
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3832016 |
TWO PIPE TRUCK TRAILER BRAKE SYSTEM WITH MEANS FOR APPLYING FRONT AND REAR TRAILER BRAKES UPON PULL-IN-TWO
This invention relates to a two-pipe dual brake apparatus for the trailer of a tractor-trailer vehicle in which a trailer control valve device has two coaxial and oppositely disposed pistons...
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3826542 |
VEHICLE ANTI-SKID BRAKING SYSTEM
An anti-skid braking system for a vehicle according to this invention has a main source of fluid pressure connected to a first (e.g. front) brake actuator group of a vehicle and controlled...
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3822920 |
TRACTOR-TRAILER ELECTRICAL CONNECTION SYSTEM FOR WHEEL BRAKE ANTILOCK-EQUIPPED TRACTORS
To automatically disable the tractor brake antilock system if a trailer is connected thereto which does not have an antilock system (but leaving the antilock system intact if the tractor operates...
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3819238 |
BRAKE AND EMERGENCY BRAKE INSTALLATION FOR VEHICLE TRAILERS
Improvement in conventional pneumatic braking systems for lead and trailer vehicles wherein actuation of the trailer braking system is accelerated to overcome time lag between application of brake...
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3819234 |
TRAILER SWAY CONTROL SYSTEM
A system for detecting the occurrence of an incipient, excessive sway condition of a trailer and for automatically applying the trailer brakes to inhibit and/or correct the sway condition.
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3810521 |
ANTI-FISHTAIL DEVICE FOR TRAILERS
The specification discloses an anti-fishtail device for trailers. The device operates on the fact that application of the trailer brakes only will stop the fishtail of a trailer once it starts. An...
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3806201 |
BRAKES
In agricultural trailers hydraulic brakes which are actuated by depressing the brake pedal of the towing tractor, it has been found that there is a tendency for a poppet valve to vibrate as oil...
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3804471 |
ACCELEROMETER AND ANTISKID BRAKING SYSTEM
An antiskid braking system which includes valve means for controlling the application of operating pressure to the brakes, so as to rapidly release and then more gradually allow application of the...
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3790807 |
TOW VEHICLE TRAILER BRAKING SYSTEM
A solenoid operated control valve for establishing an operational pressure differential in a servomotor located in a trailer to activate the wheel brakes of the trailer in response to an...
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3788709 |
HYDRAULIC BRAKE CONTROL APPARATUS FOR A TRAILER HAULED BY A MOTOR CAR
The hydraulic brake of a trailer is connected by a pressure conduit with a pressure chamber formed between a brake pedal and a brake lever of a driver-operated brake on a motor car or tractor...
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3780819 |
LAND VEHICLE
A tractor-semi-trailer vehicle has a power assist trailer axle in which the railer axle is connected to be driven by an air motor driving the trailer differential through a clutch. The power assist...
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3779612 |
TRAILER BRAKE CONTROL SYSTEM
A trailer brake control system for a tractor-trailer arrangement which comprises a deceleration transmitter located at the tractor for generating electrical signals as a function of the braking or...
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3778118 |
WHEEL SLIP CONTROL SYSTEM FOR VEHICLES WITH ELECTRIC BRAKES
A wheel slip control system for a wheeled vehicle having an electrically operated brake for at least one wheel thereof and an electric brake controller for modulating the actuation of the brake...
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3774975 |
BRAKE SYSTEM FOR THE TRAILER OF A TRACTOR-TRAILER COMBINATION
A brake system for the trailer of a tractor-trailer combination is controlled by a driver in combination with the continuous brake and friction (service) brake of the tractor. The inventive brake...
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3771838 |
SYNCHRONIZED BRAKING SYSTEM FOR A TOW VEHICLE TRAILER
A control valve for use in a tow vehicle-trailer system to synchronize the activation of the trailer brakes with the brakes of the tow vehicle. The control valve transfers an operational signal to...
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3768872 |
SKID CONTROL SYSTEM
A compound anti-skid logic system in which a plurality of different logic circuits are operative in parallel to process input signals from a common source in accordance with the different logic of...
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3768870 |
ELECTRICALLY ACTUATED TRAILER BRAKE CONTROL SYSTEM
Upon applying the brakes of a pulling vehicle, an electrical signal is used to actuate the trailer brakes. After applying the brakes of the pulling vehicle and the trailer, an electrical control...
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3758164 |
COUPLING MEANS FOR HYDRAULIC BRAKE SYSTEMS
The tractor part of a coupling between the braking systems of a tractor and trailer is an auxiliary piston and cylinder, the cylinder carrying a safety member which prevents movement of the piston...
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3758165 |
TRAILER SWAY CONTROL APPARATUS
Apparatus for use in regard to a tow vehicle and a trailer vehicle for automatically applying retardation of movement to the trailer vehicle to eliminate a sway condition which may occur in the...
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3756661 |
ANTI-SKID BRAKING SYSTEM FOR TOWED VEHICLES
An anti-skid braking system for trailers which are to be towed by tractor vehicles having their own antiskid braking system is disclosed. In this system the extra expense of duplicating much of a...
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