Patents by Inventor Willy Grimm

Willy Grimm 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 device for producing stamped parts
    Patent number: 6212930
    Abstract: For producing stamped parts, especially plates, a method is proposed consisting of only two method steps. In a first method step the workpiece is fine blanked (2) inside a device (1) is then moved to a stamping stage (3) by means of transfer tongs (4) which are likewise housed in the device (1). The stamping stage (3) is also located inside the device (1). In a second method step, the inner and outer contours are stamped on the workpiece (5) in the stamping stage (3) in a manner such that the burrs produced on the workpiece (5) during the first step are removed.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: April 10, 2001
    Assignee: ZF Friedrichshafen AG
    Inventors: Alfred Skrabs, Willy Grimm