Patents by Inventor Michael Kent Martin

Michael Kent Martin 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).

  • Extrusion blow molding methods and articles made thereby
    Publication number: 20040202809
    Abstract: A process for extrusion blow molding an article, and an extrusion blow-molded article, in which a solid radially outwardly extending flange is blown into the tubular side wall of the article. A circumferentially extending groove is formed in the inner surface of the mold that molds the tubular side wall of the article. A parison of molten thermoplastic material is extruded and the parison is inflated by blowing to blow the parison against the walls of a mold. During inflation, the groove is filled by the molten thermoplastic material. The material that filled the groove forms a solid radially outwardly extending flange molded to the tubular side wall of the article. A portion of the article extending above the flange is severed in a single cutting step to form an article having an outward flange at its top end.
    Type: Application
    Filed: April 29, 2004
    Publication date: October 14, 2004
    Applicant: Sonoco Development, Inc.
    Inventors: Michael Kent Martin, Manson Drew Case
  • Extrusion blow molding methods and articles made thereby
    Publication number: 20040035874
    Abstract: A process for extrusion blow molding an article, and an extrusion blow-molded article, in which a solid radially outwardly extending flange is blown into the tubular side wall of the article. A circumferentially extending groove is formed in the inner surface of the mold that molds the tubular side wall of the article. A parison of molten thermoplastic material is extruded and the parison is inflated by blowing to blow the parison against the walls of a mold. During inflation, the groove is filled by the molten thermoplastic material. The material that filled the groove forms a solid radially outwardly extending flange molded to the tubular side wall of the article. A portion of the article extending above the flange is severed in a single cutting step to form an article having an outward flange at its top end.
    Type: Application
    Filed: August 20, 2002
    Publication date: February 26, 2004
    Applicant: Sonoco Development, Inc.
    Inventors: Michael Kent Martin, Manson Drew Case
  • Container
    Patent number: D489986
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: May 18, 2004
    Assignee: Sonoco Development, Inc.
    Inventors: Manson Drew Case, Michael Kent Martin