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, 2010
Filed:
May. 02, 2006
Peter R Beckford, Derby, GB;
Stephen J Booth, Derby, GB;
Peter R Beckford, Derby, GB;
Stephen J Booth, Derby, GB;
Rolls-Royce plc, London, GB;
Abstract
A fan blade containment assembly () for a turbofan gas turbine engine () comprises a cylindrical, or frustoconical, casing () arranged to surround an arrangement of fan blades (). At least one hollow tubular member () is arranged radially within and secured to the casing () and the at least one hollow tubular member () contains a filler material (). The at least one hollow tubular member () extends circumferentially. The hollow tubular member () is helical and the axial spacing between the adjacent turns of the tubular member () varies and the density of the filler material () varies in order to match the severity of the impact expected at each axial location along the casingof the fan blade containment assembly ().