Patents by Inventor Bruce Coxhead

Bruce Coxhead 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).

  • Publication number: 20180056565
    Abstract: A post mold cooling system for cooling preforms is disclosed. The post mold cooling system includes a take-out device that is configured to remove preforms from a molding area and deliver them to a post mold cooling area, and a cooling station that is configured to cool the preforms. A first transfer device is configured to transfer the preforms between the take-out device and the cooling station, and a second transfer device is configured to transfer the preforms away from the cooling station.
    Type: Application
    Filed: March 16, 2016
    Publication date: March 1, 2018
    Inventors: Richard SIERADZKI, Bruce COXHEAD
  • Patent number: 5833902
    Abstract: The invention covers an injection molding apparatus and injection molding process. The apparatus has at least a first and second injection molding machine adjacent one another, with each machine including upper and lower mold elements operative to form molded products; and robot adjacent said injection molding machines operative to remove and replace at least a portion of one of said mold elements from a first of said injection molding machines while the second of said injection molding machines continues to form molded products.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: November 10, 1998
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Bruce Coxhead, Robert Schad
  • Patent number: 5772951
    Abstract: An article handling and conditioning system for use between associated machines and associated processes are disclosed. The system comprises at least one initial molding machine and a finishing machine; a device for receiving initially molded articles from the at least one initial molding machine prior to finishing in the finish machine; a first mechanism for accumulating devices for receiving and the initially molded articles; a mechanism for transporting the device for receiving and the initially molded articles from the initial molding machine to the first mechanism for accumulating; a mechanism for moving the devices for receiving and the initially molded articles through the first mechanism for accumulating; and a device for transferring the initially molded articles from the first mechanism for accumulating to the finishing machine.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: June 30, 1998
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Bruce Coxhead, Michael Koch, Robert D. Schad, Emery I. Valyi
  • Patent number: 5169705
    Abstract: Apparatus includes a blow mold, a holding device for holding the parison within the blow mold, a blow device for forming a blown article in the blow mold and a stretch rod for stretching the parison movable in the holding device. A device is provided for determining the position of the stretch rod in the holding device channel and for synchronizing the transmission of high pressure fluid to the parison based on the position of the stretch rod.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: December 8, 1992
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Bruce Coxhead, Tom Van Leeuwen
  • Patent number: 4923395
    Abstract: A method and apparatus is disclosed for establishing a preferred temperature profile useful in the oven portion of a blow molding machine by incrementally adjusting heating elements for the exterior of the oven while a stream of parisons are in motion through the oven. The disclosure also includes means and method for preserving and duplicating a preferred temperature profile.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: May 8, 1990
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Bruce Coxhead, Gary Hughes, John R. Murchie
  • Patent number: RE34177
    Abstract: A method and apparatus is disclosed for establishing a preferred temperature profile useful in the oven portion of a blow molding machine by incrementally adjusting heating elements for the exterior of the oven while a stream of parisons are in motion through the oven. The disclosure also includes means and method for preserving and duplicating a preferred temperature profile.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: February 9, 1993
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Bruce Coxhead, Gary Hughes, John R. Murchie