Patents by Inventor Keith Halliwell

Keith Halliwell 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 apparatus and adapters therefor
    Publication number: 20070178183
    Abstract: There is provided an adapter for an extrusion apparatus to split the flow of a molten material into a plurality of extrusion pathways (20), which adapter comprises an input channel (8), a first output channel (22), a second output channel (24) and means (26, 30) for adjusting the flow balance between the first output channel (22) and the second output channel (24).
    Type: Application
    Filed: March 1, 2005
    Publication date: August 2, 2007
    Applicant: BURNDEN HOLDINGS (UK) LIMITED
    Inventor: Keith Halliwell
  • Angle joint for building system
    Patent number: D249459
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: September 19, 1978
    Assignee: Injectaform Pty. Limited
    Inventor: Keith Halliwell