Patents by Inventor Teresa H. Bryan

Teresa H. Bryan 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).

  • Method of shaping an extrusion die
    Patent number: 4869862
    Abstract: From the mold cross section and the position of the parison in the mold that parison wall thickness distribution (function of the wall thickness of the parison around the parison) is computed, which would result in the desired wall thickness distribution of the blow molded article; the die gap is then shaped to at least approximate the so computed parison wall thickness distribution.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: September 26, 1989
    Assignee: Phillips Petroleum Company
    Inventor: Teresa H. Bryan
  • Shaping of dies
    Patent number: 4751651
    Abstract: From the mold cross section and the position of the parison in the mold that parison wall thickness distribution (function of the wall thickness of the parison around the parison) is computed, which would result in the desired wall thickness distribution of the blow molded article; the die gap is then shaped to at least approximate the so computed parison wall thickness distribution.
    Type: Grant
    Filed: August 16, 1983
    Date of Patent: June 14, 1988
    Assignee: Phillips Petroleum Company
    Inventor: Teresa H. Bryan