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Class Information
Number: 476/61
Name: Friction gear transmission systems or components > Condition responsive means to vary contact pressure

Sub-classes under this class:

Class Number Class Name Patents
476/63 Ball actuator 5
476/62 Centrifugal actuator 1

Patents under this class:

Patent Number Title Of Patent Date Issued
8500596 Vehicle drive force distributing apparatus Aug. 6, 2013
8419589 Locked contact infinitely variable transmission Apr. 16, 2013
8382637 Transmission Feb. 26, 2013
8075444 Friction drive device Dec. 13, 2011
7871353 Continuously variable transmission Jan. 18, 2011
7575535 Friction drive device and transmission using the friction drive device Aug. 18, 2009
7192381 Continuously variable transmission Mar. 20, 2007
7175566 Continuously variable transmission Feb. 13, 2007
7175565 Continuously variable transmission Feb. 13, 2007
7172529 Continuously variable transmission Feb. 6, 2007
7166057 Continuously variable transmission Jan. 23, 2007
7166058 Continuously variable transmission Jan. 23, 2007
7163486 Continuously variable transmission Jan. 16, 2007
7153233 Continuously variable transmission Dec. 26, 2006
7147586 Continuously variable transmission Dec. 12, 2006
7131930 Continuously variable transmission Nov. 7, 2006
6949049 Continuously variable transmission Sep. 27, 2005
6840886 Method and apparatus for a low cost, high speed, and compact nanometer precision motion stage using friction drive and flexure hinge Jan. 11, 2005
6702704 Eccentric planetary traction drive transmission with a single planetary roller Mar. 9, 2004
6689012 Continuously variable transmission Feb. 10, 2004
6554730 Auxiliary device for bicycle with traction roller type gear Apr. 29, 2003
6461261 Control apparatus and method of continuously variable transmission Oct. 8, 2002
6260654 Frictional transmission Jul. 17, 2001
5931759 Friction-roller speed changer Aug. 3, 1999
5236403 Driving hub for a vehicle, particularly a bicycle, with an infinitely variable adjustable transmission ratio Aug. 17, 1993
4555963 Torque limit drive transmission Dec. 3, 1985
4481842 Torque limit drive transmission Nov. 13, 1984
4471667 Fixed ratio traction roller transmission Sep. 18, 1984
4435998 Roller type planetary gear having a preloading arrangement Mar. 13, 1984
4328711 Reduction gear May. 11, 1982
4246802 Friction drive mechanism for converting a rotational movement into an axial movement, or vice versa Jan. 27, 1981
4224840 Traction roller transmission Sep. 30, 1980
3971262 Friction gear Jul. 27, 1976
3945270 Friction drive transmission Mar. 23, 1976

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