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Class Information
Number: 464/68.91
Name: Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts > Torque transmitted via flexible element > Coil spring > Plural > Perpendicular to shaft > Between axially spaced plates > Spring detail > Non-coiled or non-metallic
Description: Subject matter wherein axially spaced plates include a spring detail wherein the element is (a) straight, wavy, or other shape unlike a helix or (b) plastic, wood, ceramic, or other material having poor conductivity.

Patents under this class:

Patent Number Title Of Patent Date Issued
8663021 Torque fluctuation absorber Mar. 4, 2014
8062135 Dual-mass flywheel having radially arranged wire cushion bodies Nov. 22, 2011
7445553 Damper disc assembly Nov. 4, 2008
6705181 Torque transmission apparatus Mar. 16, 2004
6342012 Flexible shaft coupling Jan. 29, 2002
6301995 Flywheel assembly and a torque converter Oct. 16, 2001
6253747 Torsional coupling for supercharger Jul. 3, 2001
6119549 Flywheel assembly and a torque converter Sep. 19, 2000
6062104 Device for isolating torque fluctuations May. 16, 2000
6044942 Dynamic damper and flywheel assembly Apr. 4, 2000
6041678 Twin mass flywheel Mar. 28, 2000
RE35932 Torsional vibration damper Oct. 20, 1998
5720248 Torsional tunable coupling for a diesel engine drive shaft Feb. 24, 1998
5711406 Friction clutch for the transmission of a motor vehicle and a flywheel assembly for a friction clutch Jan. 27, 1998
5690553 Resilent element having an elastic portion and seat portions for use in a vibration damping device Nov. 25, 1997
5558317 Volute springs adapted for torsional damper assemblies and method of manufacturing same Sep. 24, 1996
5245890 Resilient coupling with relative rotation limitation Sep. 21, 1993
5169357 Torsion damping device, in particular for a clutch friction disc for a motor vehicle Dec. 8, 1992
5135089 Transmission clutch for a motor vehicle having a dynamic absorber Aug. 4, 1992
5120276 Torsion damping apparatus for use with friction clutches in the power trains of motor vehicles Jun. 9, 1992
5052244 Torque variation absorbing device Oct. 1, 1991
4950205 Flywheel with a torsional damper Aug. 21, 1990
4947706 Flywheel with a torsional damper Aug. 14, 1990
4884996 Elastic coupling with spring guides Dec. 5, 1989
4838395 Torsion damping device Jun. 13, 1989
4735297 Damper disc of a thin type Apr. 5, 1988
4714448 Torsional damper device Dec. 22, 1987
4634397 Torsional damper device for a clutch disk Jan. 6, 1987
4601677 Dual action torsion damping device Jul. 22, 1986
4560366 Torsional damper Dec. 24, 1985
4558773 Vibration damping clutch disc Dec. 17, 1985
4549642 Torsion dampers Oct. 29, 1985
4547176 Torsional damper Oct. 15, 1985
4537580 Torsional damper device Aug. 27, 1985
4325472 Flywheel connected to an internal-combustion engine Apr. 20, 1982
4210234 Torsional vibration damper Jul. 1, 1980
4197931 Clutch friction plate and damper spring construction Apr. 15, 1980

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