Patents Assigned to Siegenia-Frank AG.
  • Safety control unit
    Patent number: 4319169
    Abstract: Safety control unit using a self-starting single-phase synchronous a.c. motor with a register closure.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: March 9, 1982
    Assignee: Siegenia-Frank AG
    Inventor: Eckhard Kucharczyk
  • Air vent
    Patent number: 4178841
    Abstract: Air vent consisting of a fixed, gridlike apertured front panel and a stop plate disposed behind it, which plate is movable by a control mechanism in the direction of its plane and to the plane of the front panel and which plate in a position resting against the back of the front panel closes the grid apertures, but which in a separated position opens the grid apertures of the front panel for the passage of air.
    Type: Grant
    Filed: January 25, 1978
    Date of Patent: December 18, 1979
    Assignee: Siegenia-Frank AG.
    Inventors: Gerhard Frank, Eckhard Kucharczyk