Patents by Inventor George N. LaCasse

George N. LaCasse 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).

  • Oscillation lockout system for track mounted rock drill
    Patent number: 4046209
    Abstract: A track type vehicle having pivotable A-frame members and a walking beam structure to permit oscillation of one track relative to the other is equipped with a pair of single acting hydraulic cylinders, each of which is connected between the main frame of the vehicle and one of the track assembly. The cylinders are interconnected by a line having a selector valve. The valve is opened to permit transfer of fluid between the cylinders to permit relative oscillation of the tracks, and the valve is closed to prevent transfer of fluid between cylinders when it is desired to prevent oscillation of the tracks.
    Type: Grant
    Filed: December 11, 1975
    Date of Patent: September 6, 1977
    Assignee: Worthington Compressors, Inc.
    Inventor: George N. LaCasse