Patents by Inventor Gerhard Herzer

Gerhard Herzer 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).

  • Optical-electronic monitoring apparatus
    Patent number: 4549086
    Abstract: An optical electronic monitoring apparatus is used to detect undesired coil or lap formation at transport and drive rollers 13. For this purpose the beam 14 of a light barrier is arranged along the surface of the roller 13 parallel to its axis 23 in such a way that it is partially obscured by the cross-section of the roller. The subsequent evaluation circuit has a low pass filter 16, a differentiation stage 17 and a further low pass filter 18.
    Type: Grant
    Filed: August 20, 1982
    Date of Patent: October 22, 1985
    Assignee: Erwin Sick GmbH Optik-Elektronik
    Inventor: Gerhard Herzer