The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 2011
Filed:
Oct. 15, 2004
Cedric B Harper, Derby, GB;
Michael Creagh, Stillorgan, IE;
Neil Humphries, Derby, GB;
Ian G Martindale, Derby, GB;
Cedric B Harper, Derby, GB;
Michael Creagh, Stillorgan, IE;
Neil Humphries, Derby, GB;
Ian G Martindale, Derby, GB;
Rolls-Royce plc, London, GB;
Abstract
A turbofan gas turbine engine () comprises a fan rotor () carrying a plurality of radially extending fan blades (). A fan blade containment assembly () surrounds the fan blades () and the fan blade containment assembly () comprises a generally cylindrical, or frustoconical, metal casing (). The casing () comprises an annular member () positioned axially upstream of the tip () of the fan blade (). The annular member () extends in a radially inwardly and axially downstream direction from the metal casing () towards the tip () of the fan blade. A set of cassettes () carries fan blade track panels (B,C,D). The cassettes () are secured to the metal casing () by axially extending members () on the upstream and downstream ends () of the cassettes () which locate on the annular member () and are secured to inserts () on the inner face of the casing ().