Patents by Inventor Reto Debrunner

Reto Debrunner 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).

  • Drawing unit for a fine-spinning machine, in particular a jet-spinning machine
    Patent number: 5689945
    Abstract: An apparatus and method for guiding a broken thread end in a yarn spinning machine into a position in readiness for piecing wherein the broken thread end is retrieved from a bobbin, routed through a yarn spinning mechanism, guided into the nip of a pair of rollers of an operating drafting apparatus without abrasion of or interference with the yarn end during the guiding of the yarn end and wherein the yarn end is deposited in a position in the drafting apparatus such that the yarn end is controllably withdrawn from the drafting apparatus through the spinning mechanism and pieced or joined with a new sliver as the yarn end is withdrawn.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: November 25, 1997
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Martin Tobler, Reto Debrunner, Martin Witschi