Patents by Inventor Danny L. V. Hermans

Danny L. V. Hermans 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 discharge lamp
    Patent number: 5162693
    Abstract: The lamp vessel of a high-pressure discharge lamp locally has a coating, which is a smooth, solitary, metallically reflecting graphite film. The graphite film, which increases the temperature of comparatively cold parts of the lamp vessel, can readily be applied and has an excellent adhesion.
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: November 10, 1992
    Assignee: U.S. Philips Corporation
    Inventors: Bart Van Der Leeuw, Danny L. V. Hermans
  • High pressure discharge lamp having improved containment structure
    Patent number: 5055735
    Abstract: The high pressure discharge lamp has containment structure in the outer envelope which encloses the discharge vessel. The containment structure consists of a glass cylindrical sleeve closed at its ends by a metal plate. The plates, the cylindrical sleeve and the discharge vessel are combined as a subassembly. The metal plates are provided with tongues bearing on the glass cylindrical sleeve and the outer envelope. The lamp has a flexible conductor which extends from the current lead-through conductor remote from the stem to the lamp stem and bears on the outer envelope. The containment structure prevents failure of the outer lamp envelope in the event of explosive failure of the discharge vessel.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: October 8, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Tjitte De Jong, Florentinus L. M. Bens, Danny L. V. Hermans