Patents by Inventor Ernst L. Hoene

Ernst L. Hoene 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).

  • Gas discharge overvoltage arrester
    Patent number: 4831485
    Abstract: An overvoltage arrester for high surge currents having an increased useful life while maintaining suitable electrical properties comprising a pair of electrodes secured to an insulator housing in confronting, spaced relation to provide a discharge gap, the electrodes being covered with a metallic activation compound comprising metallic barium aluminum dispersed in a matrix of metallic aluminum, the matrix being fused onto the confronting surfaces. Additional metal additives may be embedded or alloyed with the metals of the activation layer.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: May 16, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Juergen Boy, Ernst L. Hoene
  • Vacuum tube switch which uses low temperature solder
    Patent number: 4795866
    Abstract: A vacuum switch tube wherein at least one part which separates the interior of the tube from the environment is soldered to the housing of a vacuum switch tube so as to be vacuum-tight with a soft solder 6 which has a melting point which lies below 400.degree. C. The invention is suitable for vacuum switch tubes which do not have a pump stem, and particularly for protected tubes.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: January 3, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ernst L. Hoene, Roman Renz, Klaus Gessner