Patents Represented by Attorney 313

Find this attorney in the Justia Lawyer Directory

  • Gas and/or vapor discharge lamp
    Patent number: 4144475
    Abstract: The invention relates to high pressure sodium vapor discharge lamp comprising a discharge tube and an outer bulb enveloping this tube, a glow starter being disposed in the space between that discharge tube and the outer bulb.In accordance with the invention the glow starter is resiliently clamped between the two rigid electric conductors which supply the discharge tube with current.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: March 13, 1979
    Assignee: U.S. Philips Corporation
    Inventors: Robert R. M. Delen, Duido J. J. Lenaerts