Patents by Inventor Erich Winzerling

Erich Winzerling 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).

  • High pressure electric discharge lamp containing metal halides
    Patent number: 4171498
    Abstract: A high pressure electric arc tube discharge lamp utilizing low power input. he electrode spacing is less than 20 mm and the arc is electrode-stabilized. The arc tube is of isothermal design. The gas fill of the lamp contains a mixture of metal (i) iodides or (ii) iodides and bromides. The metal halides must include at least the halides of sodium and tin. Mercury is preferred as the buffer gas. When operating, the lamp has a low-color temperature, a luminous efficacy of 80 lms/W and a color-rendering index of about 75. It is suitable for use in interior lighting.
    Type: Grant
    Filed: November 25, 1977
    Date of Patent: October 16, 1979
    Assignee: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
    Inventors: Dietrich Fromm, Jurgen Seehawer, Wolf-Jurgen Wagner, Erich Winzerling