Motor vehicles – Special wheel base – Rider propulsion with additional source of power – e.g.,...
Reexamination Certificate
2005-07-26
2005-07-26
Hurley, Kevin (Department: 3611)
Motor vehicles
Special wheel base
Rider propulsion with additional source of power, e.g.,...
C180S220000, C280S258000, C280S217000
Reexamination Certificate
active
06920953
ABSTRACT:
An improved electrically assisted bicycle has rear wheel, right and left, propulsion elements, each side having a modified freewheel that carries a hand operated electromagnetic-mechanical pawl, deployed along a pedal bar by a tape connected to a pawl positioning control box lever, a freewheel wheel with radian oriented grooves in its inboard face, and the equivalent of a motor back plate on its outboard face, said grooves being compatible with a ratcheting motion by said pedal bar pawl, said back plate supporting an electric motor's field coils, current rings, and motor brushes, that collectively compliment a motor armature, commutator, and current ring brushes, where wheel ratcheting torque is applied to one side, and motor torque to the other, said bicycle also having a battery, a controlling rheostat, and a pedal actuated circuit current on/off switch, so that a rider can manually deploy ratcheting pawls to selected pedal leverage points on said wheel, while combining therewith, mixed-in applications of variable motor leverage to achieve greater vehicle efficiency.
REFERENCES:
patent: 4445701 (1984-05-01), Stroud
patent: 4712806 (1987-12-01), Patrin
patent: 6676150 (2004-01-01), Goldstein
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