Patents by Inventor John Dinwoodie

John Dinwoodie 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: 7387822
    Abstract: A method for the production of a laminated composite mat is disclosed. The method involves impregnating a fibre mass with a liquid binder system and subjecting the so-obtained impregnated fibre mass to a drying step while the impregnated fibre mass is deposited as a layer on one side of a performed sheet incorporating an intumescent material so as to, at least, substantially remove the carrier liquid.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: June 17, 2008
    Assignee: Imperial Chemical Industries PLC
    Inventor: John Dinwoodie
  • Patent number: 7276280
    Abstract: A fibre mat (1) comprises inorganic fibres (3; 5 ) held in a flocculated binder system (4 ), the binder system comprising less than 12 w/w % of the mat. The binder-fibre flocs (3, 4 ) may be held together with relatively long inorganic fibres (5 ). A film cover layer (6 ) may be present.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: October 2, 2007
    Inventors: John Dinwoodie, Angus William Newton, Katherine Wade
  • Publication number: 20050176322
    Abstract: A laminated composite mat comprising first and second layers, the first layer comprising an intumescent material and the second layer comprising a plurality of inorganic fibres and a binder which serves to bind the fibres together and to bond the second layer to the first layer. Also described is a process for preparing the composite mat.
    Type: Application
    Filed: February 22, 2005
    Publication date: August 11, 2005
    Applicant: Imperial Chemical Industries PLC
    Inventor: John Dinwoodie
  • Publication number: 20050148252
    Abstract: A fibre mat (1) comprises inorganic fibres (3; 5) held in a flocculated binder system (4), the binder system comprising less than 12 w/w % of the mat. The binder-fibre flocs (3, 4) may be held together with relatively long inorganic fibres (5). A film cover layer (6) may be present.
    Type: Application
    Filed: December 17, 2003
    Publication date: July 7, 2005
    Inventors: John Dinwoodie, Angus Newton, Katherine Wade
  • Patent number: 6733628
    Abstract: Thermoplastic fibers of different melting points are present in an aqueous slurry of refractory fibers, binder and flocculant. The slurry is passed through a screen to form a wet body which is heated to dry the body and melt the thermoplastic fibers to bind the refractory fibers together.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: May 11, 2004
    Assignee: Saffil Limited
    Inventors: John Dinwoodie, Kathleen E. Wade, Stella M. Young
  • Publication number: 20030121631
    Abstract: Thermoplastic fibres of different melting points are present in an aqueous slurry of refractory fibres, binder and flocculant. The slurry is passed through a screen to form a wet body which is heated to dry the body and melt the thermoplastic fibres to bind the refractory fibres together.
    Type: Application
    Filed: November 7, 2002
    Publication date: July 3, 2003
    Inventors: John Dinwoodie, Kathleen E. Wade, Stella M. Young
  • Publication number: 20020025750
    Abstract: A laminated composite mat comprising first and second layers, the first layer comprising an intumescent material and the second layer comprising a plurality of inorganic fibers and a binder which serves to bind the fibers together and to bond the second layer to the first layer. Also described is a process for preparing the composite mat.
    Type: Application
    Filed: November 7, 2001
    Publication date: February 28, 2002
    Applicant: Imperial Chemical Industries PLC.
    Inventor: John Dinwoodie
  • Patent number: 5002836
    Abstract: A metal matrix composite comprises essentially-aligned, fine-diameter inorganic oxide fibers embedded in a metal matrix material such as a light metal, for example aluminium or magnesium or an alloy thereof. In a particular embodiment the fibers are nominally-continuous and preferably are of mean diameter below 5 microns. The composite can be made by liquid infiltration of a fiber preform comprising the fibres bound together with an inorganic or an organic binder or (in the case of short fibers) by extrusion of a mixture, for example a suspension, of the fibers and powdered metal matrix material.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: March 26, 1991
    Assignee: Imperial Chemical Industries PLC
    Inventors: John Dinwoodie, Michael D. Taylor, Martyn H. Stacey
  • Patent number: 4818633
    Abstract: A metal matrix composite comprises randomly-oriented inorganic oxide fibres of density below 3 g/ml embedded in a metal matrix material such as a light metal, for example aluminium or magnesium or an alloy thereof. In a particular embodiment the fibres are of density 1.8 to 2.5 g/ml and preferably are of mean diameter from 2 to 10 microns. The composite can be made by liquid infiltration of a fibre preform comprising the fibres bound together with an inorganic or an organic binder or by extrusion of a mixture of the fibres and a powdered metal matrix material.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: April 4, 1989
    Assignee: Imperial Chemical Industries PLC
    Inventors: John Dinwoodie, Martyn H. Stacey, Michael D. Taylor, Andrew M. Walker