U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Cycles

Patent 4095663 Issued on June 20, 1978. Estimated Expiration Date: Icon_subject June 20, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3758736

3792307

3803433

3884317

3921741

Inventor

Assignee

Application

No. 05/741061 filed on 11/11/1976

US Classes:

180/205, With mechanism of occupant-powered type for developing torque for supplementing, alternating with, or replacing torque of motor180/220, Electrical-type motor180/65.3With means on vehicle for generating power for the electric motor

Examiners

Primary: Peters, Joseph F. Jr.
Assistant: McGiehan, Donn

Attorney, Agent or Firm

Abstract

An electrically assisted pedal cycle including pedals and a chain whereby the rider of the cycle can drive the rear wheel of the cycle. An electric motor and an associated electric storage battery are carried on the frame of the cycle and the motor can be energized by the battery under the control of the rider of the cycle so that the motor assists the rider in propelling the cycle. The front wheel of the cycle has a plurality of permanent magnets disposed around its rim and a stator assembly including stator windings is carried by the frame of the cycle adjacent the wheel rim. The stator assembly is capable of being connected to the battery by means of a manually operable normally open switch and between the battery and the stator windings there is additionally a rectifier. Upon closure of the normally open switch while the wheel rotates alternating current is generated in the stator windings and is supplied to the battery by way of the rectifier to charge the battery. In addition, there is a resultant regenerative braking effect on the wheel so that the cycle is braked while the battery is being charged.

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