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:
Mar. 04, 2014
Filed:
Aug. 31, 2010
Rajiv A. Naik, Glastonbury, CT (US);
Steven R. Clarke, Mansfield, MA (US);
Rajiv A. Naik, Glastonbury, CT (US);
Steven R. Clarke, Mansfield, MA (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A composite blade includes a preform and a binder. The preform is a preform of yarns woven in three-dimensions and has a tip region, a root region and an intermediate region. The intermediate region is positioned between the tip region and the root region. The yarns comprise warp yarns and weft yarns. The warp yarns form a longitudinal axis. The weft yarns are positioned at a 90 degree angle to the warp yarns. The weft yarns increase in yarn size as determined by filament count along the longitudinal axis to change the thickness of the preform. The binder maintains the relative positions of the preform yarns.