Patents by Inventor Johnston R. Livingston

Johnston R. Livingston 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).

  • Alignment fitting for attaching implements to a backhoe
    Patent number: 4813163
    Abstract: An alignment fitting for implements such as buckets and hammers, which are to be removably attached to a bachhoe. The invention includes a pair of cylindrical bosses, which are affixed to opposing apertures in mounting flanges on the implement. A cylindrical bushing is rotatable inside each boss. A pin is placed through an eccentric bore in each bushing, and through the backhoe dipperstick. The eccentricity of the bushings allows the bushings to compensate for misalignment that may occur in the implement or the backhoe dipperstick. The invention may also be used with a hitch to provide greater tolerances when nonstandard size implements are attached.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: March 21, 1989
    Assignee: Construction Technology, Inc.
    Inventors: Johnston R. Livingston, Paul T. St. Louis