Patents by Inventor Walter Gruebler

Walter Gruebler 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).

  • Method and apparatus for on-line quality monitoring in the preparatory apparatus of a spinning mill
    Patent number: 5426823
    Abstract: The fluctuations in cross-section of fiber slivers are detected by means of a sensor, and from these detections are derived quality parameters, one of which is based on mass non-uniformity. Measurement signals are compared with a limit value for deviations from the desired weight of the monitored sliver, which limit value is formed as a product of mass non-uniformity and a selectable limit-value factor. Any measurement exceeding the limit value is interpreted as the presence of a thick place in the fiber sliver.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: June 27, 1995
    Assignee: Zellweger Luwa
    Inventors: Peter Feller, Walter Gruebler