Steven Donald Acenbrak
Engineers in Roswell, GA

2007026, Nov 15, 2007

Oct 31, 2005

11/666711

Steven Acenbrak - Roswell GA, US

F16C 1/10

074502200

A shifter for a bicycle having a derailleur, comprising a housing adapted to mount to a handlebar of the bicycle. The shifter further comprising a gear connected with a cable in communication with the derailleur, which is rotatably mounted in the cavity and has first and second sets of teeth; a first pawl element biased by a first biasing member into engagement with the first set of teeth; a second pawl element biased by a second biasing member into engagement with the second set of teeth. The shifter further comprising first and second shifting levers that are movable along a parallel axis of movement with a person's thumb during a shifting operation, such that the first shifting lever moves in a natural direction of movement of the thumb to wind the gear against the resistance of a gear biasing member and advance the gear of the derailleur, and such that the second shifting lever moves along a rotational axis relative to the first lever to release the gear and lower the gear of the derailleur

D579833, Nov 4, 2008

Apr 30, 2007

29/279423

Steven D. Acenbrak - Roswell GA, US

1216

D12179