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| Number | Title | Issue Date |
| 7993204 | Torsional vibration damper arrangement A torsional vibration damper with a primary side and a secondary side, wherein rotation of the primary side relative to the secondary side causes displacement of hydraulic fluid from at least one displacement chamber and compression of pneumatic fluid in at least on... | 08/09/2011 |
| 7654907 | Apparatus for damping the torsional excitation of a drive shaft In one aspect, an apparatus for damping the torsional excitation of a drive shaft is provided. The apparatus includes: a member secured to one end of the drive shaft and extending along the drive shaft; and damping means secured to the other end of the drive shaft f... | 02/02/2010 |
| 7604542 | Torsional vibration damper A torsional vibration damper includes a drive-side transmission element connected to a drive and a takeoff-side transmission element, which can deflect rotationally with respect to the drive-side element. A damping device is installed between the two transmission el... | 10/20/2009 |
| 7582019 | Security coupling in particular for main drivetrains on rolling stands An overload safety coupling, especially for the main drivetrains on rolling stands, which bridges a toothed spindle section and a spindle section with a permanent seat. The coupling includes a rotating-and-sliding sleeve, which has internal toothing at one end to ho... | 09/01/2009 |
| 7413066 | Hydraulically controlled torque coupling device A hydraulically actuated torque coupling device is provided for transmitting a drive torque from an input to at least one output. The torque coupling device comprises a rotatable hydraulic manifold block having a plurality of cylinder bores defined therein, a multi-... | 08/19/2008 |
| 7335107 | Torsional coupling A torsional coupling includes a body having a circumference and defining a center axis. The body is rotatable about the center axis. The coupling also includes a ring including an inner diameter disposed about the circumference. The ring includes a ring contact surf... | 02/26/2008 |
| 7216516 | Wobble joint A wobble joint particularly useful for supporting a wash plate in a wash basket of an automatic washing appliance includes inner and outer races formed with mating part-spherical surfaces having common centers of curvature about a longitudinal axis of the joint. Ant... | 05/15/2007 |
| 7077779 | Solenoid actuated variable pressure relief valve assembly for torque transfer assembly A torque transfer assembly for a motor vehicle comprises a ring gear subassembly and a differential subassembly rotatably supported in said ring gear subassembly, a friction clutch pack for coupling the ring gear subassembly to the differential subassembly, and a hy... | 07/18/2006 |
| 6558260 | Torsional vibration damping apparatus A torsional vibration damping apparatus which operates between the crankshaft of the engine and the input shaft of the transmission in a motor vehicle has two flywheels which are rotatable relative to each other against the opposition of one or more dampe... | 05/06/2003 |
| 6454070 | Drain mechanism for hydraulic power transmission joint A limiter plug and a drain plug are juxtaposed in a valve block. The limiter plug is provided with a thermo-switch of which operation, when a predetermined temperature is reached, opens a communication passage for drainage by means of a limiter pin. The d... | 09/24/2002 |
| 6422368 | Hydraulic power transmission joint A valve block coupled to a rotor is provided with a drain mechanism that includes a drain pin adapted to open and close a drain hole. The drain pin is incorporated in a drain plug by providing a support by a return spring. The drain pin has an orifice for... | 07/23/2002 |
| 6382380 | Hydraulic power transmission joint A torque varying mechanism comprises an accommodation hole that has a relief hole formed in its bottom and that receives a check ball therein. The accommodation hole is configured so as to present a relationship in which the area of flow passage between t... | 05/07/2002 |
| 6341682 | Hydraulic power transmission joint A joint includes therein a valve serving to cut off torque transmitted from a front wheel associated driving shaft to a rear wheel associated driven shaft by the action of a weight based on a centrifugal force when a predetermined number of rotations is r... | 01/29/2002 |
| 6283264 | Hydraulic power transmission joint A torque characteristic shifting mechanism is provided in an accommodation hole of a rotary valve. The torque characteristic shifting mechanism changes over the torque characteristics in a multi-step manner with an increase of the vehicle velocity by sett... | 09/04/2001 |
| 6257387 | Hydraulic power transmission joint A plunger is accommodated in each of a plurality of plunger chambers formed axially in a rotor, with the plunger being displaced by rotation of a cam face associated with a housing. A first one way valve for intake is incorporated in the head of each plun... | 07/10/2001 |
| 6168525 | Flexible clutch for a two-mass flywheel A clutch for a two-mass flywheel of an internal combustion engine includes a first half-coupling and a second-half coupling. Both half-couplings are, within the bounds provided, torsionally twistable relative to the other. The half-couplings are connected... | 01/02/2001 |
| 5687827 | Clutch with tangential spring bodies A clutch having a primary part and a secondary part for coupling together two coaxial rotating shafts including a driven shaft. The second part includes a driving disk, a trailing disk and tangential spring bodies forming a non-positive, engaging relation... | 11/18/1997 |
| 5649778 | Multi-directional hydraulic swivel joint A multi-dirctional swivel joint for carrying loading members comprises a crosswise main body having a pair of first and a pair of second hollow cylinder members perpendicular to one another each having connected with a stepped neck member at their free en... | 07/22/1997 |
| 5538110 | Valving for vane damper A torsion isolator assembly (30) for reducing driveline torsionals includes a vane damper (36) including improved valving (40d, 40e) for increasing the damping factor of the damper, improved spiral springs (32,34 or 80,82) for reducing spring stress prima... | 07/23/1996 |
| 5415061 | Flywheel for power transmission system having equiangularly spaced dashpots A flywheel includes an input member secured to a drive shaft, an output member rotatably supported on the input member, and a plurality of dash pots for connecting the input and output members to each other. The dash pots serve to transmit torque from the... | 05/16/1995 |
| 5392875 | Hydraulic reaction variable assist power steering system A power steering system for automobiles comprising a rotary, driver-operated valve which is adapted to control pressure distribution from a steering pump to power-assist fluid motors and to a set of transversely disposed fluid pressure reaction pistons an... | 02/28/1995 |
| 5360090 | Valving for vane damper A torsion isolator assembly (30) for reducing driveline torsionals includes a vane damper (36) including improved valving (40d,40e) for increasing the damping factor of the damper, improved spiral springs (32,34 or 80,82) for reducing spring stress primar... | 11/01/1994 |
| 5297994 | Hydraulic power transmission joint which is used in vehicles An electromagnetic actuator is provided at the outer periphery of and out of contact with a casing of a transmission joint for transmitting torque between two shafts. The electromagnetic actuator produces an electromagnetic field within the joint main bod... | 03/29/1994 |
| 5240457 | Sealing arrangement for a torque converter vane damper A torsional isolator assembly for reducing driveline torsionals includes a vane damper (36) having valving (40d,40e or 161,163) and chamfers (200,201) on pistons (60 or 160). These chamfers (200,201) aid in forming a seal between a surface (42d or 142d) b... | 08/31/1993 |
| 5234376 | Spiral spring of a torsional damper A torsion isolator assembly (30) for reducing driveline torsionals includes a vane damper (36) having valving (40d,40e) for regulating the damping factor of the damper, spiral springs (32,34 or 82,84), and cam surfaces (44d,44c) which engage the ends of t... | 08/10/1993 |
| 5085617 | Vane damper assembly for a torque converter An assembly (19) for damping torsionals in a vehicle driveline. Assembly (19) includes a spring assembly (20) and a vane damper assembly (22) disposed in parallel and immersed in automatic transmission fluid of a torque converter housing (24). The spring ... | 02/04/1992 |
| 5078648 | Driveline isolator with hydraulic damper and spiral springs Torsion damping isolator assemblies (19 or 100 or 200) are disposed for damping torsionals in a vehicle driveline. The assemblies include spiral springs (62 or 202,204) and a vane damper assembly (22or 206) disposed in parallel and immersed in automatic t... | 01/07/1992 |
| 5078649 | Hydraulic coupling for torsion isolator Torsion damping isolator assemblies (19 or 100 or 200) are disposed for damping torsionals in a vehicle driveline. The assemblies include spiral springs (62 or 202, 204) and a vane damper assembly (22 or 206) disposed in parallel and immersed in automatic... | 01/07/1992 |
| 5037353 | Hydraulic power transmission joint which is used in vehicles Two rotary shafts for transmitting power are coupled so as to be relatively rotatable. When a rotational speed difference occurs between the two shafts, a torque corresponding to the rotational speed difference is hydraulically generated and is transmitte... | 08/06/1991 |
| 5017178 | Resilient coupling apparatus The existing couplings used for transmission of torque uses a combination of mechanical springs or a combination of dampening devices such as cylindrical openings having pistons spring-biased therein. The cylindrical openings also have viscous fluid intro... | 05/21/1991 |
| 4957468 | Hydraulic reaction force apparatus of power steering device A hydraulic reaction force apparatus of a power steering device includes an input shaft, an output shaft, the input and output shafts being connected with each other to be pivotal through a predetermined angle, reaction force arms connected integrally wit... | 09/18/1990 |
| 4815332 | Dual-type damper device A dual-type damper device for damping vibration of a rotation axle, has a damper pulley including a boss portion joined to the rotation axle, a cylindrical portion located radially outwardly of the boss portion, and a connection portion connecting the bos... | 03/28/1989 |
| 4782718 | Fly-wheel unit for an internal-combustion engine In a fly-wheel unit of any desired construction type including two separate fly-wheel members, the torsion springs are housed in a liquid receiving chamber which is at least partially filled with a lubricant or with a coolant. In this way inherent noises ... | 11/08/1988 |
| 4770651 | Hydraulically controlled shaft coupling A shaft coupling comprises two coupling members, which are connected or adapted to be connected to respective shafts. One of the two coupling members is provided on a coupling face with an even number of bores, which have a uniform angular spacing and are... | 09/13/1988 |
| 4743217 | Damper disc having sealed spring chambers The present invention discloses a damper disc comprising a spline hub; a radial flange formed at the hub; a case connected to facings; circumferentially spaced plural compressible coil springs connecting the case and the flange together; sealed spring cha... | 05/10/1988 |
| 4565273 | Damper disk having hydraulic shock absorbers The invention discloses a damper disc comprising a spline hub; a radial flange formed at the hub; a sealed case covering the flange and having a radially outer portion to which a torque is transmitted; torsion springs disposed in openings in the flange an... | 01/21/1986 |
| 4555008 | Damper disc suitable for automobile clutch A hydraulic dampened clutch plate having a hub, a hub flange, a friction disc plate and pins on the hub flange and disc plate spaced radially outwardly from the hub and spaced equally circumferentially around the hub, the pins on the flange and disc plate... | 11/26/1985 |
| 4541513 | Fluid power transmission A fluid power transmission adapted for combination with an engine to drive auxiliary equipment thereto including a rotor arrangement for direct driving connection to the engine crankshaft and a housing assembly rotatably supported on the rotor arrangement... | 09/17/1985 |
| 4333319 | Universal joint assembly A universal joint assembly which includes a first and a second yoke operatively interconnected by a trunnion cross arranged therebetween is formed with a generally centrally located bore extending through the trunnion cross between the first and the secon... | 06/08/1982 |
| 4231443 | Overload couplings A tractor driving system includes an overload coupling in which at least one latch plunger housed in one coupling part fits in a recess of a second part to establish connection. The plunger has or is part of a hydraulic system and can be forced out of the... | 11/04/1980 |
