Patents by Inventor Charles G. Edmiston

Charles G. Edmiston 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).

  • Patent number: 4690791
    Abstract: In a process wherein parts are pressed into a predetermined shape by filling a die cavity with a powder material, compressing the powder under pressure to form a compressed part of said shape, an improvement to that process comprises subjecting a portion of the cavity to vibrations during the filling of the die cavity.
    Type: Grant
    Filed: October 2, 1985
    Date of Patent: September 1, 1987
    Assignee: GTE Products Corporation
    Inventor: Charles G. Edmiston