Patents by Inventor Johannes Antonius Theresia Schellen

Johannes Antonius Theresia Schellen 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).

  • Assembly of a capped high-pressure discharge lamp and a lamp holder
    Patent number: 7602112
    Abstract: The invention relates to an assembly of a capped high-pressure discharge lamp (1) and a lamp holder (50). The discharge lamp comprises an outer envelope (10) in which a discharge vessel (11) is arranged. The outer envelope has a pinched portion (20) provided with a clamping member (25). A lamp cap comprises a substantially circular-cylindrical cup shaped portion for receiving the clamping member and is provided with a protruding collar (36). The lamp holder (50) comprises a substantially circular-cylindrical flange (55) for receiving the cup-shaped portion such that the flange engages the protruding collar. An inner diameter of the flange (55) has a tolerance of less than or equal to ?0.2 mm. An outer diameter of the cup-shaped portion (33) has a tolerance of less than or equal to +0.2 mm. The respective tolerances extend over a length of at least 2.5 mm, measured with respect to the protruding collar.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: October 13, 2009
    Assignees: Koninklijke Philips Electronics N.V., BJB GmbH & Co. KG
    Inventors: Nicholas Gerardus Antonius Peeters, Johannes Antonius Theresia Schellen, Karl-Wilhelm Vogt, Erwin Norbert Lingemann
  • High pressure discharge lamp having emission matching an absorption spectrum of green plant
    Patent number: 7388333
    Abstract: The invention relates to a high pressure discharge lamp intended for use in assimilation lighting. According to the invention the high-pressure discharge lamp has a discharge vessel, which besides a buffer gas, comprises substantially LiI as metal halide or a mixture of LiI and NaI.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: June 17, 2008
    Assignee: Koninklijke Philips Electronics, N.V.
    Inventors: Volker Dirk Hildenbrand, Achim Gerhard Rolf Koerber, Antonius Cornelis Van Amstel, Johannes Antonius Theresia Schellen, Marco Haverlag, Cornelis Sander Pot
  • Assembly of a Capped High-Pressure Discharge Lamp and a Lamp Holder
    Publication number: 20080129179
    Abstract: The invention relates to an assembly of a capped high-pressure discharge lamp (1) and a lamp holder (50). The discharge lamp comprises an outer envelope (10) in which a discharge vessel (11) is arranged. The outer envelope has a pinched portion (20) provided with a clamping member (25). A lamp cap comprises a substantially circular-cylindrical cup shaped portion for receiving the clamping member and is provided with a protruding collar (36). The lamp holder (50) comprises a substantially circular-cylindrical flange (55) for receiving the cup-shaped portion such that the flange engages the protruding collar. An inner diameter of the flange (55) has a tolerance of less than or equal to ?0.2 mm. An outer diameter of the cup-shaped portion (33) has a tolerance of less than or equal to +0.2 mm. The respective tolerances extend over a length of at least 2.5 mm, measured with respect to the protruding collar.
    Type: Application
    Filed: March 8, 2005
    Publication date: June 5, 2008
    Applicants: KONINKLIJKE PHILIPS ELECTRONIC, N.V., BJB GMBH & CO. KG
    Inventors: Nicolas Gerardus Antonius Peeters, Johannes Antonius Theresia Schellen, Karl-Wilhelm Vogt, Erwin Norbert Lingemann