Patents by Inventor Charles R. Edson

Charles R. Edson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for synchronizing an electrodynamic clockwork drive
    Patent number: 4007582
    Abstract: A circuit for synchronizing an electrodynamic clockwork drive including two inductors and two permanent magnet assemblies which are moved relative to a clockwork drive by a mechanical oscillation system having the inherent frequency f and the first inductor is disposed in the operating circuit of a switching transistor and the second inductor is disposed in its control circuit so that current pulses induced in the second inductor trigger the switching transistor.
    Type: Grant
    Filed: March 12, 1974
    Date of Patent: February 15, 1977
    Assignee: Eurosil, G.m.b.H.
    Inventors: Robert W. Dugan, Charles R. Edson