Patents by Inventor David John Wilkie

David John Wilkie 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).

  • Patent number: 8951029
    Abstract: A mobile plastics extrusion plant 10 for manufacturing an extruded plastics product in a remote location. The mobile plant 10 comprises the following components: a transportable container 16 for storing raw plastics material prior to extrusion, and a transportable extruded product forming assembly (in the form of a die and former assembly 12) for forming an extruded plastics product from the raw plastics material. The mobile extrusion plant 10 further comprises a transportable delivery system 18 for delivering the raw plastics material from the transportable container 16 to the die and former assembly 12 whereby, in use, the entire plant can be transported to a remote location and operated to manufacture an extruded plastics product.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: February 10, 2015
    Assignee: Polyline Piping Systems Pty Ltd.
    Inventor: David John Wilkie
  • Publication number: 20130330434
    Abstract: A mobile plastics extrusion plant 10 for manufacturing an extruded plastics product in a remote location. The mobile plant 10 comprises the following components: a transportable container 16 for storing raw plastics material prior to extrusion, and a transportable extruded product forming assembly (in the form of a die and former assembly 12) for forming an extruded plastics product from the raw plastics material. The mobile extrusion plant 10 further comprises a transportable delivery system 18 for delivering the raw plastics material from the transportable container 16 to the die and former assembly 12 whereby, in use, the entire plant can be transported to a remote location and operated to manufacture an extruded plastics product.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 12, 2013
    Applicant: POLYLINE PIPING SYSTEMS PTY LTD
    Inventor: David John Wilkie