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Class Information
Number: 474/81
Name: Endless belt power transmission systems or components > Control for variable input to output speed-ratio > Including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter > And including belt-shifter mechanism > For shifting belt from both power input and power output pulleys
Description:


Patents under this class:

Patent Number Title Of Patent Date Issued
7597638 Transmission Oct. 6, 2009
7520831 Gear-shifting apparatus, and bicycle incorporating same Apr. 21, 2009
7361109 Bicycle gear set Apr. 22, 2008
7207912 Bicycle shift control apparatus that prevents undesirable chain angles Apr. 24, 2007
6793598 Rear derailleur device for a bicycle Sep. 21, 2004
6641494 Bicycle front derailleur fork and derailleur comprising this fork Nov. 4, 2003
6634971 Process for controlling gear shifting in a cycle, and corresponding system and components Oct. 21, 2003
6293881 Operating device for vehicle component assembly Sep. 25, 2001
6189905 Shock absorbing bicycle with pressurized air supply system Feb. 20, 2001
6162140 Motor driven derailleur Dec. 19, 2000
5865062 Method and device for speed control of a bicycle Feb. 2, 1999
5803848 Gear change system Sep. 8, 1998
5755139 Bicycle shift levers which surround a handlebar May. 26, 1998
5681234 Automatic transmission shifter for velocipedes Oct. 28, 1997
5672133 Bicycle gearing system Sep. 30, 1997
5621382 Display apparatus for a bicycle Apr. 15, 1997
5599244 Automatic transmission shifter for velocipedes Feb. 4, 1997
5588925 Shifter for transmissions on bicycles Dec. 31, 1996
5483137 Control device Jan. 9, 1996
5470277 Power operated gear change assembly for bicycles Nov. 28, 1995
5213548 Gear shifting system for derailleur equipped bicycle May. 25, 1993
5213549 Derailleurs for multi-speed bicycles May. 25, 1993
4530678 Derailer mechanism Jul. 23, 1985
4437357 Double lever assembly for bicycle speed control Mar. 20, 1984
4412828 Control means for shifting gears on dual shift bicycles Nov. 1, 1983
4340377 Speed change device Jul. 20, 1982
4304143 Speed changing device for a bicycle Dec. 8, 1981
4205558 Method and means for mounting and controlling change speed gears at the rear wheel and the crank-wheel of a bicycle or similar vehicle Jun. 3, 1980
4201095 Semi-automatic gearshift for dual derailleur bicycle May. 6, 1980
4194408 Gear-shift control for bicycle transmission Mar. 25, 1980
4154123 Drive for a bicycle May. 15, 1979
4116079 Chain drive shift system Sep. 26, 1978
4055093 10-Speed bicycles Oct. 25, 1977
4009950 Motion picture projection apparatus with film feeding speed changing apparatus Mar. 1, 1977
3965763 Bicycle gear shift Jun. 29, 1976



 
 
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