Patents by Inventor James J. Denney

James J. Denney 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).

  • Apparatus for, and method of, plunge grinding
    Patent number: 4224768
    Abstract: An apparatus for, and a method of, forming annular grooves in a workpiece by plunge grinding. The preferred embodiment of the apparatus includes: a segmental grinding wheel chuck which further includes a circumferential chuck plate to which a plurality of arcuate-shaped, equally-spaced grinding wheel segment holders are releasably connected, and, grinding wheel segments that are removably attached, by and with the use of eutectic material, to the grinding wheel segment holders. The method sets forth the steps of removably attaching the grinding wheel segments for the holders with eutectic material.
    Type: Grant
    Filed: December 5, 1978
    Date of Patent: September 30, 1980
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: James J. Denney