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:
May. 26, 2015
Filed:
Oct. 17, 2012
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
Kenneth Franklin Udall, Kirk Hallam, GB;
Kenneth John Mackie, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 11/06 (2006.01); F01D 5/30 (2006.01); B64D 27/00 (2006.01);
U.S. Cl.
CPC ...
B64C 11/06 (2013.01); F01D 5/3023 (2013.01); F05D 2260/94 (2013.01); B64D 2027/005 (2013.01); Y02T 50/66 (2013.01);
Abstract
A support ring for a rotary assembly such as a propeller assembly includes support cups for receiving blade roots of propeller blades. The support cups are interconnected by bridging structures. Each bridging structure includes bridging walls which extend radially from a bridging web. The bridging structures thus have a channel-shaped cross-section. The bridging walls have a scalloped configuration at their radially outer edges. As a result of this configuration, the neutral axes of the bridging structures are straight, so that the support ring behaves, in structural terms, as a polygon.