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. 15, 2018
Filed:
May. 19, 2015
Applicant:
Rolls-royce Plc, London, GB;
Inventors:
David Michael Beaven, Nottingham, GB;
Kenneth John Mackie, Derby, GB;
Richard Geoffrey Stretton, Leicester, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 17/10 (2006.01); F01D 15/02 (2006.01); B64C 11/30 (2006.01);
U.S. Cl.
CPC ...
F01D 17/10 (2013.01); B64C 11/306 (2013.01); F01D 15/02 (2013.01); F05D 2220/36 (2013.01); F05D 2260/79 (2013.01);
Abstract
A unison ring assembly comprises a backing plate, and a plurality of pocket-forming portions. The backing plate is formed as an annular disc, with the annular disc being planar in a radial plane of the unison ring assembly. The plurality of pocket-forming portions are equi-spaced circumferentially around the axis of the unison ring assembly, and each of the plurality of pocket-forming portions is attached to the backing plate to form a corresponding radially extending pocket.