Patents by Inventor Willi Schroth

Willi Schroth 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).

  • Patent number: 5301528
    Abstract: A device for non-cutting manufacturing of an annular part having external teeth includes a core tool that supports the blank from which the annular part is manufactured and is axially displaceable between two profiling rollers arranged diametrically opposite each other, and a separate rotating drive for each of the core tool and the two profiled rollers. The device further includes a computer element which controls the three rotating drives for synchronizing rotational speeds of the core tool and the two profiling rollers. The computer element also controls radial adjustment of the two rollers with their respective full-height regions with respect to the core tool by a calibration amount at the conclusion of the shaping operation.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: April 12, 1994
    Assignees: Langstein & Schemann GmbH, Herzing & Schroth GmbH & Co.
    Inventors: Gunter Hofmann, Willi Schroth, Erwin Klein