Patents by Inventor Gerhard Wehrmann

Gerhard Wehrmann 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).

  • Vibration device for the removal of burrs from workpieces constructed as foundry cores or the like
    Patent number: 4590636
    Abstract: There is disclosed a vibration device for de-burring a workpiece, such as a foundry core 13, 22. The device comprises a de-burring tool 10, 25 having an impact surface with a profile which corresponds with the profile of the region of the workpiece which requires de-burring. The impact surface is vibrated in the clearance between the tool and the profile of the workpiece, so as to de-burr the latter. The vibration device provides flaw-free de-burring of workpieces in automated manner (compared with known manual means) and in a short time period.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: May 27, 1986
    Assignee: Georg Fischer Aktiengesellschaft
    Inventor: Gerhard Wehrmann