Patents by Inventor Walter Steinmann

Walter Steinmann 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).

  • Red-colored electric lamp
    Patent number: 7518314
    Abstract: The invention relates to electric lamps and more particularly to automotive signal lamps. A glass composition is described for use in electric lamps, which glass is red colored. The glass composition comprises copper between 0.1 and 2% by weight, tin between 0.1 and 2% by weight, barium between 7 and 11% by weight, and strontium between 1 and 5% by weight.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: April 14, 2009
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Maarten Walter Steinmann, Hubertina Maria Ulenaers, Simon Krijnen, Simon Flink
  • Glass composition for blue lamp bulbs and use of a composition for forming an automotive bulb
    Patent number: 7501368
    Abstract: A glass composition for use in a lamp bulb includes cobalt oxide to provide a blue colored glass. The composition has an alkali metal oxide including lithium oxide. Such composition has a glass transition temperature Tg below 700° C.; e.g., below 500° C. The glass composition is used for forming, during operation, a blue light-emitting bulb for an automotive lamp.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: March 10, 2009
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Simon Flink, Hubertina Maria Petra Ulenaers, Maarten Walter Steinmann
  • Electric lamp with feedthrough comprising a gauze
    Patent number: 6570328
    Abstract: The electric lamp comprises a lamp vessel (1) and an electric element (4). The electric element (4) is electrically connected to the outside via a current feedthrough (8) which comprises a molybdenum gauze as a metal sealing part (6). The risks of too strong oxidation of the metal sealing part and of excessive tensile stresses in the seal are both decreased when the molybdenum gauze (6) is used, hence the safety of the lamp is increased.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: May 27, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Maarten Walter Steinmann
  • Device for detachably fastening a box
    Patent number: 5211966
    Abstract: A press having a U-shaped mold table and a removable mold block insertable therein. The mold block is wedged upward against limiting guide members of the mold table.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: May 18, 1993
    Assignee: Bucher-Guyer AG Machinenfabrik
    Inventors: Gerhard Raudies, Walter Steinmann