Patents Assigned to Patent- Truchand-Gesellschaft fuer Elektrische Gluelampen mbH
  • Sintering electrode
    Patent number: 6218025
    Abstract: A sintered electrode of high-melting metal (for example tungsten) is produced from spherical metal powder having a well defined particle size. The mean particle size is from 5 to 70 &mgr;m. The particle size distribution covers a range from at most 20% below to at most 20% above the mean particle size.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: April 17, 2001
    Assignee: Patent- Truchand-Gesellschaft fuer Elektrische Gluelampen mbH
    Inventors: Dietrich Fromm, Bernhard Altmann, Wolfram Graser, Peter Schade