Patents by Inventor Neil J. Zachman

Neil J. Zachman 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 wire drawing die blanks and methods of making the same
    Patent number: 3978744
    Abstract: A diamond wire drawing die blank and method for making the same are provided in which a diamond die blank is formed by metering about one half of a metal powder required to form a shroud around a diamond into a die cavity, partially compressing said one half while forming a central conical depression in said powder, placing a diamond in the formed conical cavity, adding the remaining metal powder to the mold over the die and first compressed half, compressing the metal powder around the diamond and sintering said powder compact.
    Type: Grant
    Filed: March 17, 1975
    Date of Patent: September 7, 1976
    Assignee: Cabot Corporation
    Inventor: Neil J. Zachman