Patents by Inventor Robert G. DeJohn

Robert G. DeJohn 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).

  • Turret end effector for waterjet hole cutting
    Patent number: 5655426
    Abstract: An interface for incorporation between an articulated arm robot and a cutting nozzle for cutting a circular opening in a workpiece. The interface includes apparatus for moving the cutting nozzle independently of the arm robot. The interface includes a first moving mechanism for moving the cutting device linearly to an offset position with respect to an axis extending through a center of the opening to be cut, and a second moving mechanism for moving the offset cutting nozzle in a circular path around the axis to cut the opening.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: August 12, 1997
    Assignee: Cambridge Industries, Inc.
    Inventor: Robert G. DeJohn
  • Material handling apparatus for transporting lay-out patterns
    Patent number: 5275451
    Abstract: A material handling apparatus particularly suitable for transferring lay-out patterns to a molding die press comprises a central drive unit, a plurality of outstretched wing units operatively connected to the central drive unit, and a plurality of gripping talons supported by the wing units wherein the gripping talons are operative in unison by interconnection with the wing unit and central drive unit.
    Type: Grant
    Filed: November 27, 1991
    Date of Patent: January 4, 1994
    Assignee: GenCorp Inc.
    Inventor: Robert G. DeJohn