Patents by Inventor Roy E. Kirby

Roy E. Kirby 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: 4768747
    Abstract: An improved, one-piece slide clip suitable for molds having at least one cam-actuated slide for pulling a core element outward and inward from the parting line of the mold as the mold is opened and closed, the said slide clip being wholly enclosed within the mold and non-restrictive of the normal and required movements of the mold remains inoperable until such time the slide moving along the cam outwardly is gripped by the jaws of the clip upon the removal of the cam from the slide, during the opening operation, holding the slide in a cam-aligned position, releasing the slide only upon the re-engagement of the cam pin into the slide during the closure of the mold, thereby allowing the slide to return to the molding position in the fully closed mold.
    Type: Grant
    Filed: July 31, 1987
    Date of Patent: September 6, 1988
    Inventors: John B. Williams, Roy E. Kirby