Patents by Inventor John R. Murchie

John R. Murchie 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).

  • Oven for blow molding machine
    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
  • Process for preparing hollow plastic articles
    Patent number: 4793960
    Abstract: The method of the present invention involves transferring plastic parisons from a receiving station to a finishing station on a plurality of pallets in a single row for forming said parisons into hollow plastic articles. The pallets with parisons thereon are transported through a temperature conditioning means for temperature conditioning said parisons to render same suitable for forming into said hollow plastic articles at the finishing station.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: December 27, 1988
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Robert D. Schad, Herbert Rees, Gary Hughes, John R. Murchie
  • Carrying means for holding and cooling a parison
    Patent number: 4729732
    Abstract: The apparatus of the present invention involves transferring plastic parisons from a receiving station to a finishing station on a plurality of pallets in a single row for forming said parisons into hollow plastic articles. The pallets with parisons thereon are transported through a temperature conditioning means for temperature conditioning said parisons to render same suitable for forming into said hollow plastic articles at the finishing station.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: March 8, 1988
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Robert D. Schad, Herbert Rees, Gary Hughes, John R. Murchie
  • Apparatus for preparing hollow plastic articles
    Patent number: 4690633
    Abstract: The apparatus of the present invention involves transferring plastic parisons from a receiving station to a finishing station on a plurality of pallets in a single row for forming said parisons into hollow plastic articles. The pallets with parisons thereon are transported through a temperature conditioning means for temperature conditioning said parisons to render same suitable for forming into said hollow plastic articles at the finishing station.
    Type: Grant
    Filed: May 14, 1985
    Date of Patent: September 1, 1987
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Robert D. Schad, Herbert Rees, Gary Hughes, John R. Murchie
  • Oven for blow molding machine
    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