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Class Information
Number: 192/84.7
Name: Clutches and power-stop control > Clutches > Operators > Electric or magnetic > Mechanical force increasing means
Description: Subject matter, wherein structure is provided to amplify a clutch-engaging force after an initial clutch engagement is effected by the attraction between elements of opposite magnetic polarity.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8607954 Control apparatus for clutch driving mechanism Dec. 17, 2013
8534439 Electromechanical actuator for friction clutches Sep. 17, 2013
8517156 Clutch actuating apparatus for transmission Aug. 27, 2013
8490769 Lever applied solenoid clutch actuator Jul. 23, 2013
8479904 Torque setting device Jul. 9, 2013
8376106 Driving force transmitting device Feb. 19, 2013
8348038 Disk friction clutch apparatus using self-energizing effect Jan. 8, 2013
8292054 Double clutch Oct. 23, 2012
8191696 Torque transmission apparatus Jun. 5, 2012
8167106 Clutch drive apparatus and vehicle equipped with the same May. 1, 2012
8157072 Transfer case with clutch actuator Apr. 17, 2012
8151958 Power transmitting device Apr. 10, 2012
8132638 Rear drive module wheel disconnect Mar. 13, 2012
8127906 Clutch drive device and vehicle equipped with the same Mar. 6, 2012
8091451 Power divider for motor vehicles comprising a controlled friction coupling Jan. 10, 2012
8087505 Power unit for vehicle and vehicle equipped with the same Jan. 3, 2012
8025137 Power transfer/transmission apparatus Sep. 27, 2011
7896146 Clutch device utilizing brushless motor Mar. 1, 2011
7849988 Power transmitting device Dec. 14, 2010
7845479 Electromagnetic clutch Dec. 7, 2010
7828132 Dual function holding device operable under a system power loss condition Nov. 9, 2010
7815028 Clutch plate, friction clutch, and coupling device Oct. 19, 2010
7815029 Electromagnetic clutch apparatus Oct. 19, 2010
7806797 Ball ramp assembly with variable pitch of the ball grooves Oct. 5, 2010
7793767 Four-wheel drive center disconnect electric actuator Sep. 14, 2010
7793768 Motor driven ball and ramp clutching system for a marine transmission Sep. 14, 2010
7694791 Driving force transmitting apparatus Apr. 13, 2010
7690490 Friction clutch and actuator thereof Apr. 6, 2010
7686149 Power transmission device with friction clutch and power-operated clutch actuator Mar. 30, 2010
7650808 Sprial cam clutch actuation system for two-speed transfer case Jan. 26, 2010
7648011 Compact drive assembly with multi-plate coupling Jan. 19, 2010
7635055 Torque coupling with actuator system for adaptive clutch and disconnectable lubrication pump Dec. 22, 2009
7591355 Disconnect Sep. 22, 2009
7527133 Power-operated clutch actuator for torque couplings May. 5, 2009
7481307 Torque transmission apparatus Jan. 27, 2009
7422094 Clutch mechanism for power device Sep. 9, 2008
7395910 Clutch with adjustable pack clearance Jul. 8, 2008
7334671 Actuating device for a clutch Feb. 26, 2008
7316304 Four-wheel drive center disconnect electric actuator Jan. 8, 2008
7264568 Lock detection sensor Sep. 4, 2007
7252184 Transfer gearbox Aug. 7, 2007
7211019 Torque vectoring drive mechanism having a power sharing control system May. 1, 2007
7172059 Electromagnetic coupling Feb. 6, 2007
7111718 Driving force-transmitting device Sep. 26, 2006
7083033 Torque transmission apparatus Aug. 1, 2006
7083031 Power transmitting apparatus with input and output member rotatably arranged within a case Aug. 1, 2006
7063193 Seal structure for relatively rotational members Jun. 20, 2006
7040472 Transfer case with controllable clutch May. 9, 2006
7036644 Torque-transmitting mechanism with latching apparatus May. 2, 2006
7032733 Device and method for adjusting the torque transmitted by a friction clutch Apr. 25, 2006

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