Patents by Inventor David J. Chisholm

David J. Chisholm 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).

  • Gas turbine engine casing construction
    Patent number: 5408826
    Abstract: A casing assembly for a ducted fan gas turbine engine comprises a casing around which extend two annular, axially spaced apart, frangible rails. Pieces of cloth woven from an aromatic polyamide fibre are positioned on the casing radially outer surface between the rails. Continuous layers of the cloth are wound around the casing radially outwardly of the rails and cloth pieces. The arrangement provided enhanced containment of any fan blades of the engine which may become detached from the gas turbine engine which carries the casing assembly.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: April 25, 1995
    Assignee: Rolls-Royce plc
    Inventors: Ian F. Stewart, Sivasubramaniam K. Sathianathan, David J. Chisholm