Patents by Inventor William P. Atkins

William P. Atkins 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).

  • Thermoplastic containers manufactured by extrusion blow molding apparatus
    Publication number: 20010009242
    Abstract: Extrusion blow molding apparatus (10) having a blow mold (12), a neck mold (14) positioned above the blow mold and an anvil (30) positioned in an outwardly facing cavity (32) of the neck mold. A container (C) is produced in the molding apparatus from a parison of a heated thermoplastic material by introducing pressurized blowing fluid into the container being formed by way of a blow pin assembly (16) that is reciprocable relative to the blow mold. The blow pin assembly has an inner tubular member (20) with a free end that is within the container during blowing, and an outer tubular member (22) that surrounds the inner tubular member and defines an annulus therewith for withdrawing spent blowing fluid from the container. The outer tubular member has radial ports (24) for directing spent blowing fluid against a moil (M) being formed at a rim (R) of a finish (F) of the container.
    Type: Application
    Filed: March 21, 2001
    Publication date: July 26, 2001
    Inventors: Theodore M. Czesak, Thomas J. Krall, William P. Atkins
  • Extrusion blow molding apparatus for manufacture of thermoplastic containers
    Patent number: 6213756
    Abstract: Extrusion blow molding apparatus (10) having a blow mold (12), a neck mold (14) positioned above the blow mold and an anvil (30) positioned in an outwardly facing cavity (32) of the neck mold. A container (C) is produced in the molding apparatus from a parison of a heated thermoplastic material by introducing pressurized blowing fluid into the container being formed by way of a blow pin assembly (16) that is reciprocable relative to the blow mold. The blow pin assembly has an inner tubular member (20) with a free end that is within the container during blowing, and an outer tubular member (22) that surrounds the inner tubular member and defines an annulus therewith for withdrawing spent blowing fluid from the container. The outer tubular member has radial ports (24) for directing spent blowing fluid against a moil (M) being formed at a rim (R) of a finish (F) of the container.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: April 10, 2001
    Assignee: Owens-Brockway Plastic Products Inc.
    Inventors: Theodore M. Czesak, Thomas J. Krall, William P. Atkins