Patents by Inventor Thomas Robert Orr

Thomas Robert Orr 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).

  • RF driven sulfur lamp having driving electrodes which face each other
    Patent number: 5914564
    Abstract: A high intensity discharge lamp without mercury is disclosed radiating a selected spectrum of which can be almost entirely in the visible range from an envelope that contains a sulfur containing substance. The lamp utilizes a signal source that generates an excitation signal that is externally coupled to the exterior surface of the envelope to excite the enclosed sulfur containing substance. Various embodiments of the lamp use electrodes adjacent the envelope to couple the excitation signal thereto with the face of the electrodes shaped to complement the shape of the exterior surface of the envelope. Two shapes discussed are spherical and cylindrical. To minimize filamentary discharges each envelope may include an elongated stem affixed to the exterior thereof whereby a rotational subsystem spins the envelope.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: June 22, 1999
    Assignee: The Regents of the University of California
    Inventors: George Gabor, Thomas Robert Orr, Charles Maurice Greene, Douglas Gordon Crawford, Samuel Maurice Berman
  • RF driven sulfur lamp having driving electrodes arranged to cool the lamp
    Patent number: 5825132
    Abstract: A high intensity discharge lamp without mercury is disclosed radiating a selected spectrum of which can be almost entirely in the visible range from an envelope that contains a sulfur containing substance. The lamp utilizes a signal source that generates an excitation signal that is externally coupled to the exterior surface of the envelope to excite the enclosed sulfur containing substance. Various embodiments of the lamp use electrodes adjacent the envelope to couple the excitation signal thereto with the face of the electrodes shaped to complement the shape of the exterior surface of the envelope. Two shapes discussed are spherical and cylindrical. To minimize filamentary discharges each envelope may include an elongated stem affixed to the exterior thereof whereby a rotational subsystem spins the envelope.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: October 20, 1998
    Inventors: George Gabor, Thomas Robert Orr, Charles Maurice Greene, Douglas Gordon Crawford, Samuel Maurice Berman