Patents by Inventor Alexandre MacGregor

Alexandre MacGregor 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).

  • Polymeric tube forming apparatus with a multi-dimensional control system
    Patent number: 11577442
    Abstract: A tube forming apparatus for forming polymeric tubing includes a housing between rear and discharge ends. The tube forming apparatus includes a core tube assembly with an exterior core tube and an inner core tube positioned partially therein and in an interior area of the housing. The tube forming apparatus includes a die that has an inner die-surface. A diverter tip is mounted in and extends from the inner core tube into the die forming a die opening between the die and the diverter tip. The tube forming apparatus includes a core tube adjustment system mounted proximate the rear end which includes an axial displacement device configured to axially position the core tube assembly for modulating wall thickness of the tube and/or an angular displacement device configured to modulate the inner core tube for modulating concentricity of the tube.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: February 14, 2023
    Assignee: DAVIS-STANDARD, LLC
    Inventors: John P. Christiano, Chad Allen Biron, Alexandre MacGregor, Joseph A. Wnuk, Christopher Rosivach, Saulius T. Eiva, Tyler Robert McKenna
  • POLYMERIC TUBE FORMING APPARATUS WITH A MULTI-DIMENSIONAL CONTROL SYSTEM
    Publication number: 20210107203
    Abstract: A tube forming apparatus for forming polymeric tubing includes a housing between rear and discharge ends. The tube forming apparatus includes a core tube assembly with an exterior core tube and an inner core tube positioned partially therein and in an interior area of the housing. The tube forming apparatus includes a die that has an inner die-surface. A diverter tip is mounted in and extends from the inner core tube into the die forming a die opening between the die and the diverter tip. The tube forming apparatus includes a core tube adjustment system mounted proximate the rear end which includes an axial displacement device configured to axially position the core tube assembly for modulating wall thickness of the tube and/or an angular displacement device configured to modulate the inner core tube for modulating concentricity of the tube.
    Type: Application
    Filed: October 8, 2020
    Publication date: April 15, 2021
    Applicant: Davis-Standard, LLC
    Inventors: John P. Christiano, Chad Allen Biron, Alexandre MacGregor, Joseph A. Wnuk, Christopher Rosivach, Saulius T. Eiva, Tyler Robert McKenna