Patents by Inventor Thomas J. Kuhnell

Thomas J. Kuhnell 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 cutting a thread on a rotating workpiece
    Patent number: 4173786
    Abstract: A method and apparatus are disclosed for using a numerically controlled turning machine to automatically cut a thread in response to programmed data defining certain thread cutting parameters. The programmed data defines an initial thread cutting pass and the final thread depth. The method and apparatus cause the cutting tool to make a number of iterative thread cutting passes relative to the rotating workpiece with successive passes being made at correspondingly smaller cutting depths. The threading cycle is terminated by two finish passes at a predetermined minimum depth of cut.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: November 6, 1979
    Assignee: Cincinnati Milacron Inc.
    Inventors: Thomas J. Kuhnell, Randall C. Tanner, Alois V. Dryak