Patents by Inventor Terry Wayne Williams

Terry Wayne Williams 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).

  • Mixing section for plastic extrusion screw
    Patent number: 10513051
    Abstract: An mixing section for an extrusion screw has an inlet end and an outlet end as well as alternating wiping lands and barrier lands. The wiping lands have a greater helix angle than the barrier lands. The wiping lands and the barrier lands define inlet channels which narrow toward the outlet end and outlet channels which widen toward the outlet end. A helical pattern of mixing channels is cut into the wiping lands and the barrier lands. The mixing channels may be oriented generally at approximately right angles to the wiping lands and the barrier lands. A portion of the extrudate encounters the inside wall surfaces of the mixing channels and changes direction which improves the mixing of the extrudate.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: December 24, 2019
    Assignee: Reifenhäuser GmbH & Co. KG
    Inventor: Terry Wayne Williams
  • MIXING SECTION FOR PLASTIC EXTRUSION SCREW
    Publication number: 20180126596
    Abstract: An mixing section for an extrusion screw has an inlet end and an outlet end as well as alternating wiping lands and barrier lands. The wiping lands have a greater helix angle than the barrier lands. The wiping lands and the barrier lands define inlet channels which narrow toward the outlet end and outlet channels which widen toward the outlet end. A helical pattern of mixing channels is cut into the wiping lands and the barrier lands. The mixing channels may be oriented generally at approximately right angles to the wiping lands and the barrier lands. A portion of the extrudate encounters the inside wall surfaces of the mixing channels and changes direction which improves the mixing of the extrudate.
    Type: Application
    Filed: September 14, 2017
    Publication date: May 10, 2018
    Applicant: Reifenhauser GmbH & Co. KG, Maschinenfabrik
    Inventor: Terry Wayne Williams
  • Mixing section for a plastic extrusion screw
    Patent number: 9764496
    Abstract: A mixing section for an extrusion screw has an inlet end and an outlet end as well as alternating wiping lands and barrier lands. The wiping lands have a greater helix angle than the barrier lands. The wiping lands and the barrier lands define inlet channels which narrow toward the outlet end and outlet channels which widen toward the outlet end. A helical pattern of mixing channels is cut into the wiping lands and the barrier lands. The mixing channels may be oriented generally at approximately right angles to the wiping lands and the barrier lands. A portion of the extrudate encounters the inside wall surfaces of the mixing channels and changes direction which improves the mixing of the extrudate.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: September 19, 2017
    Assignee: Reifenhäuser GmbH & Co. KG, Maschinenfabrik
    Inventor: Terry Wayne Williams
  • MIXING SECTION FOR A PLASTIC EXTRUSION SCREW
    Publication number: 20150298356
    Abstract: An mixing section for an extrusion screw has an inlet end and an outlet end as well as alternating wiping lands and barrier lands. The wiping lands have a greater helix angle than the barrier lands. The wiping lands and the barrier lands define inlet channels which narrow toward the outlet end and outlet channels which widen toward the outlet end. A helical pattern of mixing channels is cut into the wiping lands and the barrier lands. The mixing channels may be oriented generally at approximately right angles to the wiping lands and the barrier lands. A portion of the extrudate encounters the inside wall surfaces of the mixing channels and changes direction which improves the mixing of the extrudate.
    Type: Application
    Filed: January 20, 2015
    Publication date: October 22, 2015
    Applicant: Reifenhäuser GmbH & Co. KG, Maschinenfabrik
    Inventor: Terry Wayne Williams