Patents by Inventor John C. Studer

John C. Studer 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).

  • Power source transferring
    Patent number: 5191229
    Abstract: A circuit (10) for transferring power delivered to a load (16) from a primary voltage source (12) to a secondary power source (14) uses three transistors (32, 40, 46) which switch whenever there is a loss of power from the primary source (12). A capacitor (36), interposed between the first transistor (32) and the second transistor (40) attenuates the signal from the first transistor (32) after a predetermined amount of time to switch the second and third transistors (40,46) to isolate the load (16) from the secondary power source (14).
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: March 2, 1993
    Assignee: United Technologies Corporation
    Inventors: Eric W. Davis, John C. Studer