Patents by Inventor Robert D. Pritchard

Robert D. Pritchard 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).

  • Patent number: 6731043
    Abstract: A spin-roll formed one-piece field core shell formed from a blank disc of sheet metal. The one-piece field core has an outer annular ring integral to and encircling a center axis of the disc and extending from a bottom external surface in a direction that is perpendicular to the bottom surface of the disc and parallel to the center axis of the disc. The core has an inner annular ring integral to and encircling a center axis of the disc, the inner annular axis is spaced radially inward from the outer annular ring and extends from the bottom external surface in a direction that is perpendicular to the bottom surface of the disc and parallel to the center axis of the disc. The one-piece field core also contains a mounting flange that encircles a center axis of the disc and extends in a perpendicular direction to a top external surface of the disc and parallel to the center axis of the disc.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: May 4, 2004
    Assignee: A. J. Rose Manufacturing Co.
    Inventors: Robert D. Pritchard, Michael Hamulak, Randy Monahan
  • Publication number: 20030076002
    Abstract: A spin-roll formed one-piece field core shell formed from a blank disc of sheet metal. The one-piece field core has an outer annular ring integral to and encircling a center axis of the disc and extending from a bottom external surface in a direction that is perpendicular to the bottom surface of the disc and parallel to the center axis of the disc. The core has an inner annular ring integral to and encircling a center axis of the disc, the inner annular axis is spaced radially inward from the outer annular ring and extends from the bottom external surface in a direction that is perpendicular to the bottom surface of the disc and parallel to the center axis of the disc. The one-piece field core also contains a mounting flange that encircles a center axis of the disc and extends in a perpendicular direction to a top external surface of the disc and parallel to the center axis of the disc.
    Type: Application
    Filed: October 22, 2001
    Publication date: April 24, 2003
    Applicant: A.J. Rose Manufacturing Co.
    Inventors: Robert D. Pritchard, Michael Hamulak, Randy Monahan
  • Patent number: 6095307
    Abstract: A tool support and monitoring assembly for a press. The tool includes upper and lower die shoes, back-up plates, and upper and lower die tooling. The die tooling is secured to the back-up plate and includes a first surface facing the back-up plate and an opposite second surface. The back-up plate defines an air plenum which is connected to a pressure monitoring device. The die tooling defines a plurality of small bores which communicate with the air plenum. The bores extend from the first surface toward the second surface of the die tooling. The pressure monitoring device detects air pressure in the air plenum and bores, and shuts down the press to prevent a subsequent stroke when a pressure drop indicative of tool failure is detected.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: August 1, 2000
    Assignee: A. J. Rose Manufacturing Co.
    Inventors: Michael A. Hamulak, Randy Monahan, Christopher P. Rose, Robert D. Pritchard