Patents by Inventor James G. McCrone

James G. McCrone 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: 4484742
    Abstract: A stringing tool for a racket, such as a tennis racket for example, provided with individual strings for the net-like interlacing stringing covering the open area of the racket frame, each individual string being anchored at both ends, for example, by a collapsible anchoring clip disposed in a stringing aperture through the racket frame. The stringing tool comprises a pair of jaws for grasping the end of the string projecting beyond the racket frame, the jaws being mounted on a slide coupled to a second slide movable by lever action. The coupling between the two slides has an adjustable releasable mechanism operable to disconnect one slide from the other upon exerting a pull of a pre-determined force on the string. The stringing tool is preferably further provided with a clipper for cutting off the portion of the string projecting from the side of the racket frame after the string has been stretched taut from one side of the frame to the other and securely anchored by the clips in the frame stringing holes.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: November 27, 1984
    Inventors: James G. McCrone, Warren R. Heiser