Patents by Inventor Richard Burwood

Richard Burwood 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).

  • Method and apparatus for extruding cementitious articles
    Publication number: 20060061007
    Abstract: A method and apparatus (20) for extruding fibre cement. The extruder comprises a casing (30) with a pair of inter-meshing self-wiping screws (40) rotatably mounted therein. The screws continuously mix and or knead the components of the fibre cement provided through various feed means (61, 62) to form a substantially homogeneous paste and force the paste through a die (50) to form a green cementitious extrudate suitable for curing.
    Type: Application
    Filed: November 14, 2005
    Publication date: March 23, 2006
    Inventors: Hong Chen, Richard Burwood, Ian Maxwell, Nilmini Goringe