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:
Aug. 03, 2004
Filed:
Mar. 18, 2002
Sivasubramaniam K Sathianathan, Burton on Trent, GB;
Stephen J Booth, Derby, GB;
Ian G Martindale, Derby, GB;
Rolls-Royce plc, London, GB;
Abstract
A gas turbine engine fan blade containment assembly ( ) comprising a generally cylindrical, or frustoconical, metal casing ( ) has an upstream portion ( ), a transition portion ( ) and a blade containment portion ( ) and a downstream portion ( ). The upstream portion ( ) has a flange ( ) connecting the metal casing ( ) to a flange ( ) on axially adjacent casing ( ). The blade containment portion ( ) has a greater thickness (T ) than the thickness (T ) of the upstream portion ( ) and the downstream portion ( ). The downstream portion ( ) has impact protection means ( ) located on its inner surface ( ) to protect the downstream portion ( ) of the containment casing ( ). The impact protection means ( ) comprises a plurality of radially inwardly and circumferentially extending ribs ( ) on the inner surface ( ) of the downstream portion ( ) to act as spacer between an inner portion of a detached fan blade ( ) and the downstream portion ( ).