Patents by Inventor Georg Schurch

Georg Schurch 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).

  • Apparatus and method for detecting contaminants in textile products independently of the diameter of the textile products
    Patent number: 5383017
    Abstract: For the detection of the presence of contaminants in yarn a first optical sensor is used to measure the amount of light reflected from the yarn. The signal from this sensor not only depends on the presence of contaminants but also on the diameter of the yarn. For eliminating the dependence on the yarn's diameter, a second signal is recorded, which depends essentially only on the yarn's diameter. By appropriate combination of these two signals in a microprocessor system the influence of the yarn's diameter in the first signal can be eliminated.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: January 17, 1995
    Assignee: Gebruder Loepfe AG
    Inventor: Georg Schurch