Patents by Inventor Joseph A. Dezelan

Joseph A. Dezelan 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).

  • Auxiliary hydrostatic wheel drive
    Patent number: 4071106
    Abstract: A supplementary hydrostatic front wheel drive for a motor grader or the like utilizes pump flow from an already existing implement system as the source of supply to operate the drive wheel motors. The drive wheel motors are of the variable displacement over center type, and the system provides equal flow to both drive wheel motors to establish a synchronized rotational speed of both drive wheel motors. The displacements of the drive wheel motors are responsive to vehicle ground speed. The drive wheel components may include friction driving means which are responsive to the primary vehicle drive system.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: January 31, 1978
    Assignee: Caterpillar Tractor Co.
    Inventors: John A. Junck, Joseph A. Dezelan, Donald J. Larson, Robert W. White