Patents by Inventor Klaus Bechtel

Klaus Bechtel 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).

  • Light barrier with spectrally filtered reflection means
    Patent number: 4546246
    Abstract: A reflection light barrier for recognizing also strongly reflecting articles has at one side of a monitored region a light transmitter (13) which is combined with a light receiver (12) and, at the other end of the monitored region, a reflecting device (11). The reflecting device (11) has optical filter characteristics so that the spectral distribution of the light beam is changed on reflection. An electronic processing circuit only produces a signal following the incidence of reflected light on the receiver when the spectral distribution does not correspond with the spectral distribution of light reflected from the reflecting device.
    Type: Grant
    Filed: September 21, 1983
    Date of Patent: October 8, 1985
    Assignee: Erwin Sick GmbH Optik-Elektronik
    Inventor: Klaus Bechtel
  • Photoelectric guard
    Patent number: 3944818
    Abstract: This invention relates to a protective guard for surrounding hazardous parts of a machine. The guard comprises a photoelectric barrier, connected to a circuit which will shut down the machine both when the photoelectric beam is broken, and also when a part of the photoelectric system fails to operate correctly.
    Type: Grant
    Filed: September 17, 1974
    Date of Patent: March 16, 1976
    Assignee: Visomat-Gerate GmbH
    Inventor: Klaus Bechtel