Patents by Inventor Keith J. Carpenter

Keith J. Carpenter 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).

  • Diamond tipped chip control insert
    Patent number: 4854784
    Abstract: An improved metalcutting insert which incorporates a polycrystalline diamond or a polycrystalline cubic boron nitride material therein as a cutting edge material. The insert substrate includes integral chip control features which eliminate the need for the use of separately attached mechanical chipbreakers.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: August 8, 1989
    Assignee: Kennametal Inc.
    Inventors: Gerald D. Murray, Shelby R. Gibson, Keith J. Carpenter, Kenneth E. Carpenter, Michael R. Carpenter