Patents by Inventor Ihsan A H Al-Dawery

Ihsan A H Al-Dawery 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 of manufacturing a ceramic matrix composite
    Patent number: 6660115
    Abstract: A method of manufacturing a ceramic matrix composite comprises forming a slurry comprising a ceramic sol, filler particles and a solvent and forming laminates of fibers (12). The laminates of fibers (12) are impregnated with the slurry and are stacked (14) on a mold (10). The stack (14) of laminates of fibers (12) is covered by a porous membrane (16), a breather fabric (18) and a vacuum bag (20). The vacuum bag (20) is evacuated and is heated to a temperature of 60° C. for 10 hours to produce a ceramic matrix composite. The ceramic matrix composite is then heated to a temperature of 1200° C. at atmospheric pressure to sinter the ceramic matrix composite.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: December 9, 2003
    Assignee: Rolls-Royce plc
    Inventors: Edwin G Butler, Anthony G Razzell, John Dominy, Paul A Doleman, Ihsan A H Al-Dawery
  • Method of manufacturing a ceramic matrix composite
    Publication number: 20030034113
    Abstract: A method of manufacturing a ceramic matrix composite comprises forming a slurry comprising a ceramic sol, filler particles and a solvent and forming laminates of fibers (12). The laminates of fibers (12) are impregnated with the slurry and are stacked (14) on a mold (10). The stack (14) of laminates of fibers (12) is covered by a porous membrane (16), a breather fabric (18) and a vacuum bag (20). The vacuum bag (20) is evacuated and is heated to a temperature of 60° C. for 10 hours to produce a ceramic matrix composite. The ceramic matrix composite is then heated to a temperature of 1200° C. at atmospheric pressure to sinter the ceramic matrix composite.
    Type: Application
    Filed: September 18, 2002
    Publication date: February 20, 2003
    Inventors: Edwin G. Butler, Anthony G. Razzell, John Dominy, Paul A. Doleman, Ihsan A.H. Al-Dawery