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:
Nov. 08, 2016
Filed:
Apr. 30, 2013
Applicants:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Ratier-figeac Sas, Figeac, FR;
Inventors:
Assignees:
RATIER-FIGEAC SAS, Figeac, FR;
HAMILTON SUNDSTRAND CORPORATION, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 5/14 (2006.01); B64C 11/26 (2006.01);
U.S. Cl.
CPC ...
F01D 5/147 (2013.01); B64C 11/26 (2013.01); Y10T 29/49332 (2015.01);
Abstract
According to one embodiment, a propeller blade includes a foam core and a structural layer formed of multiple layers that surrounds at least a portion of the foam core. The structural layer includes a mid-thickness location defined between the foam core and an outer edge of the structural layer and the multiple layers include at least one unidirectional layer and at least one biased layer disposed asymmetrically about the mid-thickness location.