Patents by Inventor Juergen Achatz

Juergen Achatz 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).

  • Lamp bulbs for discharge lamps made from aluminosilicate glass, discharge lamps made with same and method of making same
    Patent number: 7535179
    Abstract: The lamp bulb for discharge lamps is made from an aluminosilicate glass with a transformation temperature Tg>600° C. The aluminosilicate glass has a composition (in % by weight, based on oxide content) of SiO2>55-64; Al2O3, 13-18; B2O3, 0-5.5; MgO, 0-7; CaO, 5-14; SrO, 0-8; BaO, 6-17; ZrO2, 0-2; TiO2, 0-5, but may contain small amounts of CeO2 and/or Fe2O3, for anti-solarization and fining agents, such as SnO2, Sb2O3 and/or As2O3. The lamp bulbs for the discharge lamps of the invention may include a melted-in molybdenum electrode and/or an electrode feed or they may be free of any internal electrodes. A method for making the lamp bulbs is also described.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: May 19, 2009
    Assignee: Schott AG
    Inventors: Brigitte Hueber, Juergen Achatz, Franz Ott, Joerg Fechner
  • Lamp bulbs for discharge lamps made from aluminosilicate glass, discharge lamps made with same and method of making same
    Publication number: 20030184211
    Abstract: The lamp bulb for discharge lamps is made from an aluminosilicate glass with a transformation temperature Tg>600° C. The aluminosilicate glass has a composition (in % by weight, based on oxide content) of SiO2>55-64; Al2O3, 13-18; B2O3, 0-5.5; MgO, 0-7; CaO, 5-14; SrO, 0-8; BaO, 6-17; ZrO2, 0-2; TiO2, 0-5, but may contain small amounts of CeO2 and/or Fe2O3, for anti-solarization and fining agents, such as SnO2, Sb2O3 and/or As2O3. The lamp bulbs for the discharge lamps of the invention may include a melted-in molybdenum electrode and/or an electrode feed or they may be free of any internal electrodes. A method for making the lamp bulbs is also described.
    Type: Application
    Filed: March 20, 2003
    Publication date: October 2, 2003
    Inventors: Brigitte Hueber, Juergen Achatz, Franz Ott, Joerg Fechner