Patents by Inventor Jacobus Marinus Maria Claassens

Jacobus Marinus Maria Claassens 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).

  • Publication number: 20090058312
    Abstract: To decrease a power consumption of a fluorescent lamp, the fluorescent lamp is provided with a high efficiency fluorescent coating, generating more light upon receipt of a conventional amount of radiation. Decreasing the power supplied to the lamp decreases the radiation supplied to the fluorescent coating and thus the light output of the lamp. Due to the increased light output of the fluorescent coating, the light output level of the fluorescent lamp may be kept substantially equal to a light output level of a conventional lamp.
    Type: Application
    Filed: July 3, 2006
    Publication date: March 5, 2009
    Inventors: Pieter Weijs, Leendert Huibert Goud, Jos Van Meurs, Renatus Willem Clemens Van Der Veeken, Lukas Kastelein, Jacobus Marinus Maria Claassens
  • Publication number: 20080231206
    Abstract: Method of driving a high-pressure gas discharge lamp during its steady-state operation, wherein a steady-state current signal is sent through the lamp for maintaining a discharge arc in the lamp, comprising the step of comparing the lamp conductivity response to a current step in said current signal with reference parameters; and in response to said comparison at least one of the following steps: stopping the current supply to the lamp, generating a signal indicating the end-of-life status of the lamp, changing the steady-state current through the lamp, changing the steady-state waveform of the current signal through the lamp, and generating a signal indicating the lamp type, wherein said current step is obtained by sending a current pulse which is superimposed on said steady-state current signal through the lamp.
    Type: Application
    Filed: January 18, 2005
    Publication date: September 25, 2008
    Inventors: Winston Donald Couwenberg, Robertus Antonius Johannes Keijser, Jacobus Marinus Maria Claassens, Bennie Izaak Pieter Simpelaar
  • Patent number: 7391146
    Abstract: A halogen incandescent lamp has a transparent sealed bulb, a gas filling comprising an inert gas and a halogen additive, a luminous element which is attached to a current supply system extending in a pinched portion of the bulb, and a mount extending from at least adjacent the outside of the pinched portion into the bulb and comprising at least one metal support wire which retains the luminous element in the vicinity of the end of the bulb remote from the pinched portion. The mount has a non-conducting part such that the outer end of the part of the mount at or near the outside of the pinched portion and the support wire are electrically insulated from each other.
    Type: Grant
    Filed: November 27, 2003
    Date of Patent: June 24, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jacobus Marinus Maria Claassens, Joseph Franciscus Raymond Eijsermans, Wilfried Ludwig Kohlmann
  • Patent number: 4039880
    Abstract: The invention relates to a method of operating a self-stabilizing discharge lamp provided with a discharge tube which is filled with sodium and xenon.According to the invention the discharge lamp is operated in such a manner that a sodium pressure is produced in the discharge space which results in a high luminous efficacy.
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: August 2, 1977
    Assignee: U.S. Philips Corporation
    Inventors: Louis Benjamin Beijer, Mijndert Koedam, Jacobus Marinus Maria Claassens, Johannes Adrianus Josephus Maria Van Vliet