Patents by Inventor Petrus Cornelis Lauwerijssen

Petrus Cornelis Lauwerijssen 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).

  • Low-pressure mercury vapor discharge lamp
    Patent number: 7053535
    Abstract: A low-pressure mercury vapor discharge lamp includes a discharge vessel having two end portions. An electrode carrier is arranged in an end portion and carries an electrode for generating and maintaining a discharge in the discharge vessel. The electrode carrier is at least partly made of a bimetal or a memory metal, and is formed such that the distance between electrode and the far end of the end portion increases if the temperature of electrode carrier increases.
    Type: Grant
    Filed: May 27, 2002
    Date of Patent: May 30, 2006
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Petrus Cornelis Lauwerijssen, Marinus Cornelis Michiel Neelen, Johannes Theodorus Jacubus Van Haastrecht
  • Low-pressure mercury vapor discharge lamp
    Publication number: 20040145318
    Abstract: A low-pressure mercury vapor discharge lamp (1) comprising a discharge vessel (2) having two end portions (3), wherein an electrode carrier (9) is arranged in an end portion (3) and carries an electrode (10) for generating and maintaining a discharge in said discharge vessel (2), wherein said electrode carrier (9) is at least partly made of a bimetal or a memory metal, and wherein said electrode carrier (9) is formed such that the distance between said electrode (10) and the far end of said end portion (3) increases if the temperature of said electrode carrier (9) increases.
    Type: Application
    Filed: November 25, 2003
    Publication date: July 29, 2004
    Inventors: Petrus Cornelis Lauwerijssen, Marinus Cornelis Michile Neelen, Johannes Theodorus Jacubus Van Haastrecht