Patents by Inventor Koen Lenaerts

Koen Lenaerts 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 with amalgam
    Patent number: 8018130
    Abstract: The invention relates to a lamp system comprising a low-pressure mercury vapor discharge lamp having a discharge vessel (6) enclosing a discharge space (8), with two electrodes (10, 30) positioned in the discharge vessel and an amalgam (18) arranged at a first end section (28) outside the discharge path between the first electrode and the second electrode. A ballast generates an electrical discharge current independently of an electrical heating current. A heating element (22) is positioned in the first end section for heating the amalgam using the electrical heating current. The temperature of the amalgam can be kept within its optimal temperature range for a relatively broad range of operating conditions.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: September 13, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Antonius Cornelis Van Den Broek, John Elen, Frank Kloek, Koen Lenaerts, Heleen Esch, Jaak Geboers
  • LOW-PRESSURE MERCURY VAPOR DISCHARGE LAMP WITH AMALGAM
    Publication number: 20090026965
    Abstract: The invention relates to a lamp system comprising a low-pressure mercury vapor discharge lamp having a discharge vessel (6) enclosing a discharge space (8), with two electrodes (10, 30) positioned in the discharge vessel and an amalgam (18) arranged at a first end section (28) outside the discharge path between the first electrode and the second electrode. A ballast generates an electrical discharge current independently of an electrical heating current. A heating element (22) is positioned in the first end section for heating the amalgam using the electrical heating current. The temperature of the amalgam can be kept within its optimal temperature range for a relatively broad range of operating conditions.
    Type: Application
    Filed: January 30, 2007
    Publication date: January 29, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Antonius Cornelis Van Den Broek, John Elen, Frank Kloek, Koen Lenaerts, Heleen Esch, Jaak Geboers