Patents Assigned to Giersch GmbH
  • Flame monitor
    Patent number: 6168419
    Abstract: The invention relates to a flame monitor for blue-burning flames having a photosensor whose output signal is evaluated in such a manner that the fuel supply is switched off not only when the flame is extinguished but also when its color moves too far into the yellow band.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: January 2, 2001
    Assignee: Giersch GmbH
    Inventor: Kurt-Henry Mindermann