Patents by Inventor Norman W. Bibby

Norman W. Bibby 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).

  • Process for producing mouldings from an expanded styrene polymer
    Patent number: 5308560
    Abstract: A process for producing a moulding from an expanded styrene polymer. This process comprises applying gas pressure to particles of the polymer, introducing the particles under pressure into a mould, and reducing the pressure to allow at least some of the particles to expand in the mould and bond together to form the moulding.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: May 3, 1994
    Assignee: M. Y Trondex Limited
    Inventors: Norman W. Bibby, Oskar L. Willi