Patents by Inventor Otto Plank

Otto Plank 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 for producing an eyelet
    Patent number: 6904659
    Abstract: Method for production of an eyelet, during connection of workpieces where material of an outermost workpiece is pulled through openings in the other workpieces, using a single feed movement of rim hole or eyelet punch to both shape the eyelet from the one workpiece and generate the openings, in the other workpieces by breaking out one or more pieces of materials, providing a reduction in the number of operating steps and simplifying such steps.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: June 14, 2005
    Assignee: Welser Profile AG
    Inventor: Otto Plank