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| Number | Title | Issue Date |
| 7341318 | Circulating fluid regulated braking device for air and land vehicles A circulating fluid regulated braking device for a vehicle includes a piston pump mounted directly on the hub of each vehicle wheel. The pumps mounted on front wheels are connected by pipes to a primary two-way valve, which, in turn, is connected by pipes to a prima... | 03/11/2008 |
| 7281619 | Multiple-disk brake or clutch A multiple-disk brake or clutch (1) includes at least one disk (2, 4) in a housing and at least one disk located on a shaft. Coolant is located in the housing (3). A coolant outlet (10) and a coolant inlet (7) of a cooling circuit ... | 10/16/2007 |
| 7249663 | Wet clutch friction plate and method The present invention provides a friction plate with features to provide additional cooling for use within a wet clutch system. The friction plate has a core plate with a friction facing layer affixed to each face of the core plate. The first friction facing layer h... | 07/31/2007 |
| 7237657 | Friction plate A friction plate is formed of a core plate and friction linings bonded on opposite surfaces of the friction plate, respectively. To permit cooling of each friction lining from a side of its associated surface of the core plate, the friction plate is provided, for ex... | 07/03/2007 |
| 7121389 | Oil system The invention relates to an improved system for supplying filtered oil to wet brakes of the tractor without additional/auxiliary pump. The system comprises of a suitably sized connection provided on the drain line of the Hydraulic system, which supplies required qua... | 10/17/2006 |
| 7114598 | Brake cooling mechanism of four-wheeled vehicle A brake cooling system for a four-wheeled drive automobile effectively releases frictional heat generated in a braking apparatus from a surface of a casing of the braking apparatus, and has enough height of a body of the automobile relative to ground level. The brak... | 10/03/2006 |
| 7036640 | Brake cooling system and method of cooling brakes in an axle assembly An axle assembly that uses brakes that require cooling includes a brake cooling system that uses at least one hydraulic pump that supplies cooling oil to the brakes. Means for driving of the hydraulic pump using rotation of a component of the axle assembly such as a... | 05/02/2006 |
| 6948598 | Brake drum for wet-type band brake drum and method for manufacturing the same A brake drum for a wet-type band brake has a large number of grooves substantially along the circumferential direction on a slide contact surface with the brake band. Each adjacent grooves are smoothly linked to each other through a substantially convex arcuate cros... | 09/27/2005 |
| 6945371 | Wet clutch or friction plate brake Wet clutch (100) or friction plate brake has an essentially hollow cylindrical shaped balance piston (14) that is coaxial to a clutch hub (2) and is rigidly connected with an apply piston support device (12), an essentially ring shaped sp... | 09/20/2005 |
| 6907973 | Method and device for coolant oil feeding to a multiple-disc shifting element of an automatic transmission A system and method for supplying cooling fluid for frictional elements, for example multiple disc clutches and multiple disc brakes, in automatic transmissions. The cooling fluid flows through the multiple disc clutch or brake in a predefined manner radially inward... | 06/21/2005 |
| 6766884 | Wet brake system A brake system (10) for a rotating component (12), the brake system including a plurality of discs (14) coupled to said component (12) to rotate with said component (12) about an axis, each disc (14) having first and second ... | 07/27/2004 |
| 6691839 | Reduced drag wet disc brake A reduced drag wet disc brake assembly is disclosed in which the viscosity of the fluid in the assembly is capable of changing. At higher traveling speeds, the viscosity of the fluid is low. However, when the viscosity of the fluid increases the speed of ... | 02/17/2004 |
| 6651786 | Band brake assembly A band brake drum assembly (50) is provided and includes a brake band member (52), a generally round and/or cylindrical and brake drum (54) which is disposed concentric to band (52), and an input or hub shaft (56 which is fixedly coupled to and rotatably ... | 11/25/2003 |
| 6412613 | Electric brake An electric motor brake has a printed circuit board which circumferentially locates and. Returns a plurality of electromagnetic coil assemblies within a coil housing. The circuit board simplifies both the assembly and wiring associated with the electric m... | 07/02/2002 |
| 6345712 | Axle assembly with liquid cooled brake A differential axle assembly for providing differential torque transfer between an input shaft and two output shafts is disposed within a housing. Friction discs are splined to each of the output shafts. Reaction discs are splined to a stationery brake ho... | 02/12/2002 |
| 6305505 | Reduced friction wet disc brake An improve wet disc brake incorporates a two part rotating disc. One of the two parts is selectively rotatable, and the other part is constantly rotating with the rotor. The rotor carries an air supply which creates an air bearing between the constantly r... | 10/23/2001 |
| 6237727 | Wet type multi-plate friction engaging apparatus The present invention provides a wet type multi-plate friction engaging apparatus in which axially shiftable outer tooth plates provided on an inner peripheral surface of a drum, and inner tooth plates disposed within the drum and spline-connected to an o... | 05/29/2001 |
| 6202814 | Automatic transmission having grounded clutch with convergent cooling A friction device includes a fixed housing and a driven member which ise rotatable about a common axis. The assembly also includes a friction disc pack operable to connect and disconnect the driven member for transferring and interrupting torque therebetw... | 03/20/2001 |
| 6189669 | Multi-disk friction device having forced lubrication on demand A friction device includes a clutch pack operable to connect and disconnect drive and driven members for transferring and interrupting torque therebetween. A piston is supported in the clutch housing and defines a first expandable chamber. The piston is r... | 02/20/2001 |
| 6062367 | Friction plate A friction plate is constituted by a core plate, and friction members fixed respectively to opposite surfaces of the core plate. The friction member has oil passages, extending therethrough from its inner peripheral surface to its outer peripheral surface... | 05/16/2000 |
| 5998311 | Fabric arrangement and method for controlling fluid flow In accordance with one aspect of the present invention, a material for an element of a power transmission-absorption assembly and the method of making such material is disclosed. The material has a pre-selected channel configuration to permit flow of a co... | 12/07/1999 |
| 5988326 | Press drive with oil shear clutch/brake drives A drive unit for driving a press uses a hydraulically actuated oil shear brake unit located on one side of a flywheel and a hydraulically actuated oil shear clutch unit located on the opposite side of the flywheel. The actuating assemblies for the oil she... | 11/23/1999 |
| 5769187 | Press drive with oil shear clutch/brake drives A drive unit for driving a press uses a hydraulically actuated oil shear brake unit located on one side of a flywheel and a hydraulically actuated oil shear clutch unit located on the opposite side of the flywheel. The actuating assemblies for the oil she... | 06/23/1998 |
| 5662192 | Brake disk with built-in acoustic wear-warning device A disk brake comprising a disk (1) which carries on each side a secondary friction layer (7) to which a primary friction layer (6) is affixed, wherein the friction layers (6, 7) are actuable by brake shoes (4, 5), wherein when at least one of the primary ... | 09/02/1997 |
| 5615758 | Fabric arrangement and method for controlling fluid flow In accordance with one aspect of the present invention, a material for an element of a power transmission-absorption assembly and the method of making such material is disclosed. The material has a pre-selected channel configuration to permit flow of a co... | 04/01/1997 |
| 5542306 | Drag brake for truck mounted, clutch operated power takeoff device A drag brake mechanism prevents rotation of the shaft of a truck mounted connect-disconnect, clutch-operated, power takeoff device when the clutch is in its disconnect mode, by applying a constant braking force to the shaft which cannot be overcome by ina... | 08/06/1996 |
| 5495927 | Controlled cooling apparatus for torque transfer devices A torque transfer device embodying the concepts of the present invention utilizes a plurality of first apply torque plates and a plurality of second reaction torque plates. Each torque plate has a generally flat annular disk portion, and passages penetrat... | 03/05/1996 |
| 5307906 | Combined mechanically/hydraulically actuated braking system which provides tactile feed-back A braking system for a vehicle. The braking system provides continuous tactile feed back through the brake pedal to the operator of the vehicle that conforms to the degree to which the vehicle brakes are being applied so that the tactile feed-back to the ... | 05/03/1994 |
| 5299676 | Rotation check mechanism A cylindrical oil-filled casing (2, 3, 5) has an input shaft (12) on which are mounted a pair of braking rings (17, 26) which are allowed limited axial and circumferential movement with respect to one another. The ring (26) is driven by the shaft and driv... | 04/05/1994 |
| 5228543 | Sealed wet disc brake for vehicles A sealed vehicle wet disc brake has a brake housing and a piston housing which are fixedly interconnected and which receive a rotor. The two housings and rotor define an annular cavity which is sealed by appropriate rotary seals and in which is maintained... | 07/20/1993 |
| 5207305 | Method and apparatus for incorporating hydrodynamic film to transfer or retard motion and dissipate heat The present invention is an apparatus and method for capturing a hydrodynamic film between two working surfaces whereby the hydrodynamic film separates the two working surfaces while transmitting mechanical energy between the two thereby greatly reducing ... | 05/04/1993 |
| 5205384 | Powder-lubricated damper with wavy damper pads The damper arrangement is operated in high temperature applications, such as load and speed environments such as found in turboengines. The damper arrangement includes damper pads which are laterally urged against damping elements forming a shearing zone ... | 04/27/1993 |
| 5190123 | Direct drive axle brake and cooling system A direct drive, self-cooling, fail-safe axle brake system mounted to a drive axle associated with a differential and wheel end of a vehicle. The brake system has two back to back tandem operated combination brake components associated with the wheel end, ... | 03/02/1993 |
| 5186288 | Electro-shear brake A motor brake unit comprising a housing member defining a fluid chamber disposed about the motor shaft of a motor, a shaft sleeve disposed within the fluid chamber nestingly engaging the motor shaft for rotation therewith, a first plurality of brake eleme... | 02/16/1993 |
| 5174420 | Wet disc brake A spring applied - hydraulically released (SAHR) type wet disc brake for a wheeled vehicle having a large braking torque and energy absorption capacity. The brake unit includes a piston housing in which an annular piston is mounted for reciprocal movement... | 12/29/1992 |
| 5152724 | Liquid-cooled multi-disc brake The invention concerns a liquid-cooled multi-disc brake (29) as used in transmission systems. The object of the invention is to improve the cooling of a multi-disc brake (29) exposed to high stresses owing to frequent use. In order to increase the through... | 10/06/1992 |
| 5050939 | Fail-safe wheel service brake system A hydraulic wheel braking system for a vehicle includes wet disc wheel brakes that are applied by a single spring-activated piston within each brake housing. Each piston is selectively and variably disengaged from the brake discs by variable hydraulic pre... | 09/24/1991 |
| 5050710 | Wet disc brake mechanism A work vehicle includes lefthand and righthand suspension mechanisms individually having an elastomeric belt entrained about a plurality of roller wheels and a fron wheel assembly, with the front wheel assembly having inboard and outboard side portions co... | 09/24/1991 |
| 5012901 | Self-energizing disc brakes A compound disc brake comprises a pair of pressure plates with a ball and ramp camming mechanism, one of the plates comprises a driven plate keyed to a rotating axle shaft to be braked, and the other plate comprises an input plate carried from the driven ... | 05/07/1991 |
| 4938321 | Liquid cooled brake apparatus A tubular hub member receives a shaft and is surrounded by a housing formed by a base section coupled to a cup-shaped closure section. The hub member defines an inlet passage for circulating cooling oil and supports a set of brake discs which interfit bet... | 07/03/1990 |
