Patents by Inventor Richard J. Fiedor

Richard J. Fiedor 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).

  • Light activated switch system having high di/dt capability
    Patent number: 4204116
    Abstract: A light activated semiconductor switch comprises a light source for activating a light activated semiconductor device. A remote controllable light deflecting device is interposed between the light activated device and the light source for directing the light source onto the light activated device at a specified time in the rise time of the light source in response to a signal in order to decrease the switching time of the light activated device.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: May 20, 1980
    Assignee: Westinghouse Electric Corp.
    Inventors: Michael W. Cresswell, Richard J. Fiedor
  • High energy, short duration pulse system
    Patent number: 4135099
    Abstract: A system for switching a high energy, short duration pulse from a high energy source to an impedance matched series load. A light activated semiconductor device having a rectifying junction is serially connected between the source and the load, and another light activated semiconductor device is connected in parallel across the load. A fast rise time laser light source sequentially activates the series connected device to initiate the energy pulse, and then actuates the device paralleled across the load to short circuit the load and terminate the energy pulse.
    Type: Grant
    Filed: September 15, 1977
    Date of Patent: January 16, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Richard J. Fiedor, Maurice H. Hanes