Patents Represented by Attorney William R. McClellan

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  • Vacuum tight assembly
    Patent number: 4197957
    Abstract: A vacuum-tight assembly such as a discharge tube for a metal vapor arc lamp is formed from a transparent or translucent ceramic composition sealed with a member formed from a vanadium-zirconium alloy or vanadium utilizing a brazing alloy. The vanadium or vanadium alloy and the brazing alloy have thermal coefficients of expansion closely matching that of the ceramic composition.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: April 15, 1980
    Assignee: GTE Laboratories Incorporated
    Inventor: Carl F. Buhrer
  • Electrodeless light source with self-contained excitation source
    Patent number: 4185228
    Abstract: An electrodeless light source having a termination fixture adapted for connection to a high frequency power source has an electrodeless lamp with a self-contained ultraviolet excitation source and a means for coupling power to the electrodeless lamp. The electrodeless lamp includes a main lamp cavity and an exciter lamp cavity within a single envelope. When power is applied to the fixture, the exciter lamp cavity emits ultraviolet radiation which assists starting of the arc discharge in the main lamp cavity.
    Type: Grant
    Filed: October 19, 1978
    Date of Patent: January 22, 1980
    Assignee: GTE Laboratories Incorporated
    Inventor: Robert J. Regan