Patents by Inventor Robert C. Keppeler

Robert C. Keppeler 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 apparatus for making irregular sections
    Patent number: 4897002
    Abstract: A method and apparatus for machining fragile workpieces of any material, by placing the workpiece upon a convex support, tensioning the workpiece into coextensive engagement over the support, and moving a cutting tool away from an anchored end of the workpiece to establish transverse and longitudinal configurations at exposed sides of the workpiece when removed from the support.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: January 30, 1990
    Inventor: Robert C. Keppeler