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

On-machine battery recharging system

Patent 4360771 Issued on November 23, 1982. Estimated Expiration Date: Icon_subject November 23, 1999. 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

3005305

3480811

3497026

3792742

Method and apparatus for coupling signals from a rotating device with end shafts exposed
Patent #: 3962911
Issued on: 06/15/1976
Inventor: Grenlund

Electronic watch generator
Patent #: 4008566
Issued on: 02/22/1977
Inventor: McClintock

Tire pressure monitor Patent #: 4229728
Issued on: 10/21/1980
Inventor: Tremba

Inventor

Assignee

Application

No. 06/087412 filed on 10/22/1979

US Classes:

310/74, Inertia or fly-wheel device310/153, Inbuilt with flywheel (magneto)310/156.01, Permanent magnet rotor310/68D, Conversion elements, (e.g., transformers, rectifiers, etc.)310/68RElectric circuit elements

Examiners

Primary: Hickey, R. J.

Attorney, Agent or Firm

International Classes

H02J 7/32 (20060101)
H02J 7/00 (20060101)
H02K 21/26 (20060101)
H02K 21/00 (20060101)

Abstract

Battery charging apparatus, and the battery to be charged, are mounted on the end face of a rotating roll. In one embodiment stationary magnets are mounted adjacent the paths of travel of ferrite rods which carry electrical windings. In another embodiment a hollow torus carrying an electrical winding is mounted concentric of the axis of rotation of the roll and has a freely-falling magnet therein. In another embodiment the torus is replaced by a plurality of hollow elongate carriers each carrying a winding and each having a freely-falling magnet therein.

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