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:
Dec. 04, 2012
Filed:
Apr. 29, 2011
Robert J. Mitchell, Nottingham, GB;
David Ulrich Furrer, Zionsville, IN (US);
Joseph Andrew Lemsky, Waukesha, WI (US);
Mark C. Hardy, Derby, GB;
Robert J. Mitchell, Nottingham, GB;
David Ulrich Furrer, Zionsville, IN (US);
Joseph Andrew Lemsky, Waukesha, WI (US);
Mark C. Hardy, Derby, GB;
Rolls-Royce PLC, London, GB;
Abstract
An alloy disc includes a hub portion, a rim portion and a web portion disposed between the hub portion and the rim portion. The disc includes a fine grain structure substantially in a first region of the disc and a coarse grain structure substantially in a second region of the disc. The fine grain structure may be in the hub portion of the disc, and the coarse grain structure may be in the rim portion of the disc. The coarse grain structure may extend a greater distance radially inwardly from the rim portion into the web portion on the first axial end of the disc than on the second axial end of the disc. The fine grain structure may extend a greater distance radially outwardly from the hub portion into the web portion on the second axial end of the disc than on the first axial end of the disc.