Patents by Inventor David E. La Bonte

David E. La Bonte 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).

  • Plural-amplitude vibration assembly
    Patent number: 4550622
    Abstract: In the embodiment shown, the assembly comprises a pair of apertured weights mounted on a rotatable shaft, each of the weights having abutment surfaces one or another pairs of which close upon each other, depending upon the direction of shaft rotation. One of the weights is keyed to the shaft to rotate therewith; the other weight is freely rotatable relative to the shaft. Upon rotation of the shaft in a first direction, a first pair of the abutment surfaces engage, and the eccentricities of the weights then are so disposed as to produce a given-amplitude vibratory force. Upon rotation of the shaft in a contrary direction, a second pair of the abutment surfaces engage, and the eccentricities of the weights then are so disposed as to produce a vibratory force of a differing amplitude.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: November 5, 1985
    Assignee: Ingersoll-Rand Company
    Inventors: David E. La Bonte, Kurt W. Richter, Robert F. Goehler