Patents by Inventor James D. Oilschlager, Jr.

James D. Oilschlager, Jr. 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).

  • Centrifugally activated switch for a synchronous generating system
    Patent number: 4868906
    Abstract: When operating a synchronous machine as a synchronous generator, a suppression resistor is required across the main generator field. However when operating the synchronous machine as an induction motor, a current is induced in the main generator field which is typically greater than the current carrying capability of the suppression resistor.In order to overcome the foregoing problem, the present invention provides a centrifugally activated switch for mounting on a rotor and which provides an alternate current path for the induced current.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: September 19, 1989
    Assignee: Sundstrand Corporation
    Inventor: James D. Oilschlager, Jr.