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:
Apr. 16, 2013
Filed:
Aug. 14, 2009
Brian P. Huth, Westfield, MA (US);
Phillip Alexander, Colchester, CT (US);
Carl Brian Klinetob, East Haddam, CT (US);
Michael Parkin, South Glastonbury, CT (US);
Rajiv A. Naik, Glastonbury, CT (US);
Brian P. Huth, Westfield, MA (US);
Phillip Alexander, Colchester, CT (US);
Carl Brian Klinetob, East Haddam, CT (US);
Michael Parkin, South Glastonbury, CT (US);
Rajiv A. Naik, Glastonbury, CT (US);
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Abstract
The disclosed composite airfoil includes a three-dimensional composite core extending longitudinally and having a chord-wise direction. The core has a core in-plane thickness extending between opposing sides in a through-plane direction generally perpendicular to the chord-wise and longitudinal directions. A composite skin covers the opposing sides and has an exterior surface providing an airfoil contour. The skin includes a total skin in-plane thickness corresponding to a sum of thicknesses through the skin in the through-plane direction from each of the opposing sides to their adjoining exterior surface. A sum of the core in-plane and total skin in-plane thicknesses at a central portion of the composite airfoil is a total in-plane thickness. The total skin in-plane thickness at the central portion is less than 50% of the total in-plane thickness.