Patents by Inventor Ronald Huijben

Ronald Huijben 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 capsule having amalgam chamber
    Patent number: 7990041
    Abstract: An amalgam capsule (16) for a low-pressure mercury vapor discharge lamp (1) has a closed end and an opposing end with an opening (21) to allow passage of mercury vapor between the amalgam plug (18) and the discharge space (3) of the lamp (1). A glass rod (19) placed in the capsule (16) restrains movement of the amalgam plug (18), and projections (20) in the inner wall of the capsule (16) restrain movement of the glass rod (19). The presence of the amalgam capsule (16) in the discharge space (3) enables highly-loaded, substantially temperature-independent operation of linear fluorescent lamps such as T8 lamps.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: August 2, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Brett Carter, Ronald Huijben
  • LOW-PRESSURE MERCURY VAPOR DISCHARGE LAMP WITH AMALGAM CAPSULE HAVING AMALGAM CHAMBER
    Publication number: 20100134000
    Abstract: An amalgam capsule (16) for a low-pressure mercury vapor discharge lamp (1) has a closed end and an opposing end with an opening (21) to allow passage of mercury vapor between the amalgam plug (18) and the discharge space (3) of the lamp (1). A glass rod (19) placed in the capsule (16) restrains movement of the amalgam plug (18), and projections (20) in the inner wall of the capsule (16) restrain movement of the glass rod (19). The presence of the amalgam capsule (16) in the discharge space (3) enables highly-loaded, substantially temperature-independent operation of linear fluorescent lamps such as T8 lamps.
    Type: Application
    Filed: May 5, 2008
    Publication date: June 3, 2010
    Inventors: Brett Carter, Ronald Huijben