Patents by Inventor Sivasubramaniam K Sathianathan

Sivasubramaniam K Sathianathan 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 fan blade assembly
    Patent number: 5443366
    Abstract: A fan blade assembly for a ducted fan gas turbine engine comprises a hub which carries an annular array of radially extending fan blades. Each fan blade has a root portion which locates in a corresponding groove in the hub. Aligned radial slots in the root portion and groove accommodate a U-shaped key which provides axial retention of the root portion in its groove. A flat spring attached to the underside of the root portion maintains the key in position and permits manual deflection of the key to assist blade assembly and disassembly.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: August 22, 1995
    Assignee: Rolls-Royce plc
    Inventors: David S. Knott, Czeslaw Paluszkiewicz, Martyn P. Adams, Sivasubramaniam K. Sathianathan
  • 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