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Class Information
Number: 464/27
Name: Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts > Fluid coupling > Including multiple piston-cylinder devices radially spaced from axis of rotation
Description: Subject matter wherein a plurality of cylinders containing the liquid or gas are located in a position radially spaced from the axis of rotation of the coupled members, each of said cylinders having a piston reciprocable therein.

Patents under this class:

Patent Number Title Of Patent Date Issued
8469826 Radial piston damped torsional coupling and machine using same Jun. 25, 2013
7993204 Torsional vibration damper arrangement Aug. 9, 2011
7654907 Apparatus for damping the torsional excitation of a drive shaft Feb. 2, 2010
7604542 Torsional vibration damper Oct. 20, 2009
7582019 Security coupling in particular for main drivetrains on rolling stands Sep. 1, 2009
7413066 Hydraulically controlled torque coupling device Aug. 19, 2008
7335107 Torsional coupling Feb. 26, 2008
6558260 Torsional vibration damping apparatus May. 6, 2003
6454070 Drain mechanism for hydraulic power transmission joint Sep. 24, 2002
6422368 Hydraulic power transmission joint Jul. 23, 2002
6382380 Hydraulic power transmission joint May. 7, 2002
6341682 Hydraulic power transmission joint Jan. 29, 2002
6283264 Hydraulic power transmission joint Sep. 4, 2001
6257387 Hydraulic power transmission joint Jul. 10, 2001
6168525 Flexible clutch for a two-mass flywheel Jan. 2, 2001
5687827 Clutch with tangential spring bodies Nov. 18, 1997
5649778 Multi-directional hydraulic swivel joint Jul. 22, 1997
5538110 Valving for vane damper Jul. 23, 1996
5415061 Flywheel for power transmission system having equiangularly spaced dashpots May. 16, 1995
5392875 Hydraulic reaction variable assist power steering system Feb. 28, 1995
5360090 Valving for vane damper Nov. 1, 1994
5297994 Hydraulic power transmission joint which is used in vehicles Mar. 29, 1994
5240457 Sealing arrangement for a torque converter vane damper Aug. 31, 1993
5234376 Spiral spring of a torsional damper Aug. 10, 1993
5085617 Vane damper assembly for a torque converter Feb. 4, 1992
5078648 Driveline isolator with hydraulic damper and spiral springs Jan. 7, 1992
5078649 Hydraulic coupling for torsion isolator Jan. 7, 1992
5037353 Hydraulic power transmission joint which is used in vehicles Aug. 6, 1991
5017178 Resilient coupling apparatus May. 21, 1991
4957468 Hydraulic reaction force apparatus of power steering device Sep. 18, 1990
4815332 Dual-type damper device Mar. 28, 1989
4782718 Fly-wheel unit for an internal-combustion engine Nov. 8, 1988
4770651 Hydraulically controlled shaft coupling Sep. 13, 1988
4743217 Damper disc having sealed spring chambers May. 10, 1988
4565273 Damper disk having hydraulic shock absorbers Jan. 21, 1986
4555008 Damper disc suitable for automobile clutch Nov. 26, 1985
4541513 Fluid power transmission Sep. 17, 1985
4333319 Universal joint assembly Jun. 8, 1982
4231443 Overload couplings Nov. 4, 1980
4148200 Torsional vibration damper for a lock-up clutch Apr. 10, 1979
4095485 Elastic shaft coupling with attenuation of torsional oscillations Jun. 20, 1978

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