Patents by Inventor Karl Sievertsen

Karl Sievertsen 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).

  • Tapered part turning apparatus
    Patent number: 6068267
    Abstract: A turning apparatus for a CNC or other turning machine comprises a faceplate having a locating insert secured and located therein for locating a part on a taper thereof. The turning apparatus clamps and draws the part into the locating insert to facilitate machining of the part. The insert is readily replaceable to accommodate a part having a different taper.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: May 30, 2000
    Assignee: Rockford Products Corporation
    Inventors: Karl Sievertsen, Richard L. Edwards