Patents by Inventor Anthonius P. Van Der Vleuten

Anthonius P. Van Der Vleuten 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).

  • High-pressure metal vapor discharge lamp
    Patent number: 4521716
    Abstract: The invention relates to a high-pressure metal vapor discharge lamp having an ignition auxiliary means (13) externally of the discharge vessel. The external ignition auxiliary means is connected electrically to a first main electrode (5) and in the inoperative condition of the lamp extends along the wall of the discharge vessel up to at most 3 mm beyond one end of a second main electrode (6). According to the invention the external ignition element extends at the level of the first main electrode over at most 3 mm along the first main electrode from the end of the first main electrode. In this manner a regular ignition of the lamp is obtained, variation in the ignition voltage pulse required for ignition being considerably restricted.
    Type: Grant
    Filed: September 9, 1982
    Date of Patent: June 4, 1985
    Assignee: U.S. Philips Corporation
    Inventors: Cornelis A. J. Jacobs, Johannes A. T. Schellen, Anthonius P. Van Der Vleuten