Patents by Inventor Peter Eiswirth

Peter Eiswirth 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).

  • Device and method for detecting the coil temperature of a direct-current motor, especially a brushless direct-current motor
    Patent number: 4897584
    Abstract: A device and method for detecting the coil temperature of a direct-current motor by determining the resistance of at least one coil of the motor. The method includes measuring a parameter of the at least one coil while the motor is running. The measurement is made at a time interval in which the coil is without current. The measuring device includes a commutation circuit of the motor which generates a time interval used for measuring the current.
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: January 30, 1990
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Bertold Grutzmacher, Peter Eiswirth, Helmut Meyer
  • Protective device for a cable end
    Patent number: 4847447
    Abstract: Protective device for a cable end for use when laying a cable includes a rigid and elongated sleeve closed at one end thereof and having a cable end disposed therein.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: July 11, 1989
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Peter Eiswirth, Michael Lehnert