Patents by Inventor Richard R. Eby

Richard R. Eby 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 of forming a cutting edge
    Patent number: 4428260
    Abstract: A shearbar is formed of a first material. A groove is formed in an upper surface of the bar and is filled with a second material relatively harder than the first material. A side surface is then milled off the bar until the groove is exposed. As a result, a shear edge of the bar is formed of the harder material rather than having only an outer coating of harder material.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: January 31, 1984
    Assignee: Sperry Corporation
    Inventor: Richard R. Eby