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. 19, 2014
Filed:
Sep. 23, 2011
Christopher S. Mckaveney, East Hartford, CT (US);
James R. Murdock, Tolland, CT (US);
Christopher S. McKaveney, East Hartford, CT (US);
James R. Murdock, Tolland, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A fan blade has a main body extending between a leading edge and a trailing edge. Channels are formed into the main body from at least one open side. A plurality of ribs extend across the main body intermediate the channels. The fan blade has a dovetail, and an airfoil extending radially outwardly from the dovetail. The channels have a termination end adjacent a radially inner end of the ribs. The termination end is formed along a complex fillet with a first radius of curvature formed at the termination end, and a second radius of curvature merging into sides of the ribs. The second radius of curvature is greater than the first radius of curvature.