Patents by Inventor Louis F. Pochet

Louis F. Pochet 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).

  • Sintered cemented carbide body coated with three layers
    Patent number: 4035541
    Abstract: A triple coated cemented hard metal carbide product in which a cemented metal carbide substrate is coated with, first, a metal carbide coating, in such a manner so as to create a carbon deficient area in the substrate, then, a metal carbo-nitride and, finally, a metal nitride coating so as to take advantage of the metal carbide and metal nitride properties in order to protect the cemented metal carbide substrate from corrosive atmospheres and abrasion due to frictional wear.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: July 12, 1977
    Assignee: Kennametal Inc.
    Inventors: Emlyn N. Smith, Louis F. Pochet