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Class 188/170 - Fluid-pressure release


Subclass of Class 188 - Brakes
Definition: The spring-applied brake is released by fluid-pressure-operated
No. of patents: 391
Last issue date: 05/08/2012


1                    
NumberTitleIssue Date
8172047Compact combination brake cylinder comprising a pneumatic locking mechanism
A brake cylinder for pneumatic vehicle brakes, especially for utility vehicles includes a spring brake section for carrying out parking brake actions by way of a brake spring, and a service brake section for carrying out pneumatic service brake actions. The spring b...
05/08/2012
8006815Parking brake assembly for railway vehicle brake system
A parking brake assembly for a railway car includes a ratchet mounted for rotation on a threaded piston rod of a brake actuator and a holding pawl engageable with the ratchet for maintaining a push rod of the parking brake assembly to apply braking force when the ai...
08/30/2011
8006816Combination cylinder with pawl-actuated emergency release device for the parking brake
The invention relates to a combination cylinder including a service brake cylinder as an active service brake with at least one pressure-medium-actuated service brake piston which actuates a brake mechanism via a service brake piston rod, and a spring store brake cy...
08/30/2011
7987953Compact combined brake cylinder
A brake cylinder for pneumatically actuated vehicle brakes includes a parking brake spring-loaded brake section and a service brake section combined to form a structural unit in a housing. The housing is divided into two chambers by a piston. A cylinder spring of th...
08/02/2011
7931131Rotational resistance applying device in main shaft driving device for machine tool
A rotational resistance applying device in which a hollow roller is provided between a first surface of a clamp piston (pressing member) and a second surface of a sliding disc (a press member), and in which a pressing force applied to the clamp piston acts upon the ...
04/26/2011
7926628Spring-applied parking brake with manual release and reapply
A spring-applied parking brake with manual release and reapply. A gear box fixed relative to the rear wall of a cylinder has a manual crank. A pushrod extending through the cylinder and gear box is connected to provide braking force. A threaded collet surrounding he...
04/19/2011
7743893Compact integrated brake system
A mechanically applied spring release brake (50) having a single small diameter dynamic seal (46) is integrated into a wheel and tire to provide for a small package utilized in forklifts, wheel trucks and other industrial vehicles. ...
06/29/2010
7743894Brake actuator reinforcement and method of attaching same
In order to safely and conveniently assemble and service new design spring brake actuators having power springs located in the middle of the actuator, the actuator's rear chamber cover must be able to withstand high localized forces from tools such as power spring c...
06/29/2010
7513341Combined service brake and spring-loaded brake cylinder with internal ventilation
A combined service brake and spring-loaded brake cylinder includes an air-bleed valve having a piston supporting a valve body, which is guided inside a cylinder in an axially displaceable manner, and at least one first pressure spring supported on the piston being l...
04/07/2009
7395906Brake actuator
A brake actuator including a chamber in which is provided a movable pressure responsive element which divides the chamber into first and second compartments, the brake actuator also including a valve assembly with an inlet which is connected to a source of pressuris...
07/08/2008
7392887Bladder actuator for a railroad retarder
The present invention pertains to a low-maintenance bladder actuator for a low-profile railroad retarder. The actuator has an internal guide mechanism and internal limit stops. The guide mechanism has a concentric, telescoping guide rod and guide sleeve that are rem...
07/01/2008
7380643Brake assembly, particularly for a hydraulic wheel drive
A brake assembly, in particular of a hydraulic wheel drive, comprising a disk package formed of a plurality of outer disks and corresponding inner disks, and compressible a piston assembly for braking. A first hydraulic cycle acts on the piston assembly for driving ...
06/03/2008
7377370Parking brake system including a brake cylinder
A brake system for a rail vehicle including a brake cylinder having a housing, a port on the housing for receiving fluid pressure signals, a pressure piston carried inside the housing, and a shaft inside the housing. The shaft is connected at one end to the pressure...
05/27/2008
7357462Hydraulic brake system for a wind energy plant
The hydraulic brake system comprises a piston/cylinder unit (14) for activating and releasing a brake (12), comprising a volume (16) adapted to have a pressurized working fluid supplied thereto for moving the piston (24) from a braking po...
04/15/2008
7328778Wheel brake caliper
A crane wheel brake having a pair of brake shoes at opposite sides of a crane wheel. Each of the brake shoes has a brake pad, a brake pad guide roller and a spring for biasing the brake pad guide roller to project beyond the brake pad towards the wheel. The brake pa...
02/12/2008
7306078Composite brake cylinder
A composite material and framework structure adapted to be utilized as a piston and cylinder apparatus. A cylindrical tube composed of a composite material is compressed between two end caps at the axial ends of the cylindrical composite tube. Beam elements extend b...
12/11/2007
7303053Non-pressure head with integrated piston stop and vent/drain
A non-pressure head for a fluid cylinder, which includes a drain channel formed in the flange by a raised portion of the flange extending from a plane of the flange in the same direction as the head portion. The channel is cold formed in the flange. For the piston s...
12/04/2007
7293841Hydraulic motor and brake control system and method of controlling the same
A hydraulic control system for operating at least one hydraulic motor and at least one hydraulic brake. In one specific embodiment of the invention, the hydraulic motor and brake are part of an industrial vehicle. ...
11/13/2007
7287969Rotary fluid pressure device and improved brake assembly for use therewith
A rotary fluid pressure device defining a fluid inlet (17), an output shaft (37), and a housing (41,43) defining a brake chamber (61), a piston member (63,65) being disposed therein and biased toward an engaged position by a spring...
10/30/2007
7273136Parking brake device of vehicle
A hydraulic parking brake device is selectively switched between a braking state and a non-braking state. A braking force decreases as a pressure in the control oil chamber increases and increases as the pressure in the control oil chamber decreases. The device incl...
09/25/2007
7267206Device for the hydraulic actuation of a parking brake and method for operating such a device
A parking and emergency brake device having an actuating device (10) that is supplied with pressurized fluid wherein a piston (14) slides in a cylinder (12, 22) to axially delimits a front hydraulic pressure chamber (16) and exert a deter...
09/11/2007
7258208Vertical mount disc brake with disc separator
A brake (10) which is adapted to be rotationally coupled with an output shaft includes a housing (11). An inner shaft (33) is adapted to be attached to the output shaft for rotation therewith. A disc assembly (64) includes a plurality of ...
08/21/2007
7255208Aircraft brake wheel heat shield
A perforated heat shield (20) is formed of a single layer and is implemented to be positioned between an aircraft brake assembly (34) and wheel assembly (28) in order to effectively protect the wheel assembly (28) and adjacent components ...
08/14/2007
7249806Hydraulic motor and brake control system and method of controlling the same
A hydraulic control system for operating at least one hydraulic motor and at least one hydraulic brake. In one specific embodiment of the invention, the hydraulic motor and brake are part of an industrial vehicle. ...
07/31/2007
7249661Apparatus for the control of brakes in bicycles and the like
The invention refers to an apparatus for the control of brakes in bicycles and the like, to be used, in particular, for disc brakes mounted on bicycles and comprising a pump able to push fluid into a hydraulic circuit connected to the brake, characterized in that th...
07/31/2007
7225905Magnetorheological fluid damper
A magnetorheological damper device is provided having an increased shear interface area per unit volume of device, which enhances the stroking force of the damper. The damper generally includes a thrust shaft comprising an external threaded surface in threaded commu...
06/05/2007
7216940Adaptation of TMX for axle motion III truck application
An apparatus engageable with a railway vehicle truck-mounted braking system for compensating for truck bolster movement which includes at least one force transmitting wedge member movable in a reciprocating motion by a pneumatic actuator. The at least one force tran...
05/15/2007
7210670Drawworks apparatus
A drawworks having a main drum spool, a main drum shaft which passes through and is rotatably and concentrically supported by the main drum spool, an auxiliary drum spool, respective drum shafts passing through and rotatably and concentrically supported by the drum ...
05/01/2007
7191875Disc brake
A disc brake includes a piston seal made of rubber that is shaped to fit into a seal groove on the inner surface of a cylinder of a caliper for a brake piston. To prevent braking effectiveness from being impaired, even if the temperature of a caliper rises in a disc...
03/20/2007
7188710Hydraulic brake actuator comprising electrically actuable lock for park brake
In an automotive vehicle braking system, a hydraulic brake actuator includes a wedge for locking a hydraulic piston in a brake position for purposes of applying a park brake. To apply the park brake, hydraulic pressure is increased to advance the piston to urge the ...
03/13/2007
7178639Locking device
A device is provided for clamping a loaded rod (2) with at least one clamping element (3), which is movably mounted on its conical outer periphery in a corresponding conical outer ring (4). The outer ring (4) is thereby axially movable in...
02/20/2007
7163090Parking brake system including a brake cylinder
A brake system for a rail vehicle including a brake cylinder having a housing, a port on the housing for receiving fluid pressure signals, a pressure piston carried inside the housing, and a shaft inside the housing. The shaft is connected at one end to the pressure...
01/16/2007
7162399System for and method of selecting pneumatic device, and recording medium
A pneumatic device selection system has a computer, first through sixth databases connected to the computer and storing data of at least pneumatic devices, a coordinate input unit and a keyboard connected to the computer, for entering input data based on an input ac...
01/09/2007
7156471Two-stage cylinder for applying automatic set and release hand brake
An apparatus engageable with a hand brake assembly for automatically applying at least one brake secured to a railway vehicle. The apparatus comprises an operating mechanism which is a two stage pneumatic cylinder having a primary portion for initial phase of the br...
01/02/2007
7140477Automatic parking brake for a rail vehicle
A parking brake for a rail vehicle can automatically lock the rail vehicle brakes in an applied position, such as by clamping the brake cylinder push rod to prevent retraction from an applied position to a release position. An actuator can operate the parking brake,...
11/28/2006
7140483Transmission parking brake
A parking lock (1) of a transmission comprises a parking lock wheel (2) that is rotationally fixed relative to a shaft (25) and a locking ring (3) that is rotationally fixed relative to a housing (24), the locking ring (3) c...
11/28/2006
7138904Biometric system and method for vehicle security and operation
Disclosed is a keyless system for operating and accessing a vehicle such as an automobile, truck, minivan, bus, airplane, train, boat, etc. Preferably, the user's fingerprint is his or her “right of passage” into the vehicle. The system includes fingerprint trig...
11/21/2006
7134566Container lid with closure member
A lid for a container holding a flowable substance has an annular top wall. A side wall depends from the top wall, and has a mounting portion for connecting the lid on the container. The top wall has an opening that is adapted to permit the flow of the substance thr...
11/14/2006
7131518Motion control apparatus with backlash reduction
A motion controller for use with a rod (10A, 10B, 10C) has a backlash reducer (88A, 88B, 88C) that substantially reduces or eliminates the space created after manufacturing parts with specified tolerance dimensions to substa...
11/07/2006
7121191Air-operated brake actuator with control valve
An air-operated brake actuator system of a vehicle comprises a spring brake actuator and a service brake actuator, the spring brake actuator including a sealed housing with a spring chamber and a pressure chamber, and a hollow actuator rod disposed in the spring bra...
10/17/2006
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