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Class Information
Number: 280/215
Name: Land vehicles > Wheeled > Occupant propelled type > With propulsion means > Added or stored energy device > With occupant propulsion means > Interposed power storing device
Description: Vehicles in which the added energy device is interposed in the occupant operated propelling train.










Sub-classes under this class:

Class Number Class Name Patents
280/216 Fluid system 29
280/217 Flywheel or weight 32


Patents under this class:

Patent Number Title Of Patent Date Issued
8534404 Auxiliary power device of bicycle Sep. 17, 2013
8251389 Bicycle with auxiliary power system Aug. 28, 2012
8201839 Bicycle with bidirectional input and one-way output Jun. 19, 2012
8100424 Bicycle driving assistance device Jan. 24, 2012
7703562 Energy efficient robotic system Apr. 27, 2010
7673893 Spring-based mechanism for saving labor of a bicycle rider Mar. 9, 2010
7150332 Speed controller for a vehicle Dec. 19, 2006
6869384 Exercising bicycle Mar. 22, 2005
6557877 Regenerative braking and driving apparatus May. 6, 2003
6502842 Bicycle power generating arrangement Jan. 7, 2003
6371501 Tread wheel frame system Apr. 16, 2002
6053830 Power-spring assist to pedals of bicycle Apr. 25, 2000
5388847 Rider propelled vehicle and drive assembly therefor Feb. 14, 1995
5188003 Power assist device for a drive mechanism Feb. 23, 1993
5157988 Elastic crank for bicycles Oct. 27, 1992
5035678 Energy-storing bicycle sprocket drive system Jul. 30, 1991
4846488 Spring drive and spring drive scooter Jul. 11, 1989
4744577 Regenerative braking system for bicycles May. 17, 1988
4416464 Spring assist drive for cycle Nov. 22, 1983
4305599 Transmission for a wheeled vehicle Dec. 15, 1981
4108459 Spring powered bicycle Aug. 22, 1978
3941075 Pedal powered amphibian tricycle with blower-turbine coupling means Mar. 2, 1976











 
 
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