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Class Information
Number: 192/84.91
Name: Clutches and power-stop control > Clutches > Operators > Electric or magnetic > Operator for axially engaging elements > Interposed friction elements
Description: Subject matter, wherein frictional engagement is provided by three or more friction elements with one or more of the friction elements being sandwiched between adjacent elements.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8490769 Lever applied solenoid clutch actuator Jul. 23, 2013
8083636 Electronic control torque vectoring axle Dec. 27, 2011
8020683 Magnetic friction clutch Sep. 20, 2011
7913827 Electromagnetic actuator, electromagnetic clutch including said electromagnetic actuator, and driving force transmitting apparatus for vehicle including said electromagnetic clutch Mar. 29, 2011
7845479 Electromagnetic clutch Dec. 7, 2010
7815028 Clutch plate, friction clutch, and coupling device Oct. 19, 2010
7815029 Electromagnetic clutch apparatus Oct. 19, 2010
7677375 Drive force transmission device Mar. 16, 2010
7591355 Disconnect Sep. 22, 2009
7584832 Apparatus for the adjustment capability of two frictional shifting components Sep. 8, 2009
7581628 Electromagnetic clutch Sep. 1, 2009
7556134 Magnetic friction clutch Jul. 7, 2009
7520373 Electromagnetic friction clutch Apr. 21, 2009
7516826 Electro-slip clutch Apr. 14, 2009
7506740 Power transmission device with clutch control system Mar. 24, 2009
7488147 Spindle device Feb. 10, 2009
7395910 Clutch with adjustable pack clearance Jul. 8, 2008
7243769 Dual motion actuator Jul. 17, 2007
7097019 Low power modulating clutch control system with electromagnetic actuator Aug. 29, 2006
7083030 Torque transfer coupling with magnetorheological clutch actuator Aug. 1, 2006
7070034 Electromagnetic clutch and manufacturing method of magnetic path forming member therefor Jul. 4, 2006
7063193 Seal structure for relatively rotational members Jun. 20, 2006
7040473 Electromagnetic friction clutch for a vehicle door May. 9, 2006
6997294 Electromagnetic clutch device Feb. 14, 2006
6988604 Friction clutch pack having a motor driven ball ramp operator Jan. 24, 2006
6988602 Torque transfer coupling with magnetorheological clutch actuator Jan. 24, 2006
6932204 Power transmission device for a four-wheel drive vehicle Aug. 23, 2005
6920968 Clutch plate, friction clutch, and coupling device Jul. 26, 2005
6880688 Driving force transmitting apparatus Apr. 19, 2005
6845854 Axial setting device Jan. 25, 2005
6786314 Electromagnetic clutch structure in driving force distribution system Sep. 7, 2004
6761662 Electromagnetic coupling apparatus Jul. 13, 2004
6755291 Wet-type friction clutch and electromagnetic friction clutch Jun. 29, 2004
6755290 Power transmission device for a four-wheel drive vehicle Jun. 29, 2004
6725992 Electromagnetic clutch control providing enhanced engagement Apr. 27, 2004
6722482 Power transfer device Apr. 20, 2004
6719110 Wet type friction clutch and electromagnetic clutch Apr. 13, 2004
6708806 Power transmission apparatus Mar. 23, 2004
6679362 Actuator device for a clutch device Jan. 20, 2004
6672443 Electromagnetic friction connecting apparatus Jan. 6, 2004
6668996 Electromagnetic clutch Dec. 30, 2003
6666315 Ball ramp clutch with indexing plates Dec. 23, 2003
6637569 Ball ramp actuator with indexing plates Oct. 28, 2003
6637572 Electromagnetic clutch structure in driving force distribution system Oct. 28, 2003
6607061 Electromagnetic clutch control system Aug. 19, 2003
6585093 Drive force transmission apparatus Jul. 1, 2003
6578693 Axial setting device Jun. 17, 2003
6578684 Driving force transmission device Jun. 17, 2003
6561332 Ball ramp clutch with frictional damping May. 13, 2003
6530460 Front-rear and side to side torque transfer module for all-wheel drive vehicles Mar. 11, 2003

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