Patents by Inventor Thomas Schenkel

Thomas Schenkel 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).

  • Control apparatus for controlling flock height in a feed chute for a fiber processing machine
    Patent number: 4939816
    Abstract: A control unit maintains the fiber flock column in a feed chute at a set height. The control unit includes a row of light barriers located about a set height for emitting signals in response to interruption of the light barriers by fiber flock. An evaluation unit evaluates the signals to determine the actual height of the flock column and emits a control signal to adjust the feed rollers in the feed chute.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: July 10, 1990
    Assignee: Rieter Machine Works, Ltd.
    Inventors: Thomas Schenkel, Urs Staehli