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. 20, 2018
Filed:
Jan. 25, 2012
John M. Obrecht, Louisville, CO (US);
Lasse Gilling, Vejle, DK;
Henrik Fredslund Hansen, Aalborg, DK;
Scott J. Johnson, Boulder, CO (US);
Ryan A. Sievers, Lyons, CO (US);
John M. Obrecht, Louisville, CO (US);
Lasse Gilling, Vejle, DK;
Henrik Fredslund Hansen, Aalborg, DK;
Scott J. Johnson, Boulder, CO (US);
Ryan A. Sievers, Lyons, CO (US);
SIEMENS AKTIENGESELLSCHAFT, München, DE;
Abstract
A swept wind turbine blade () includes a blade body () extending along a length between a root () and a tip () of the blade (). A pitch axis () extends through the root () of the blade (). A reference line () defines a deviation from the pitch axis () and corresponds to a swept shape of the blade () along its length. The reference line () has a zero sweep at the root (), a zero slope at the root (), and a positive curvature () along a segment within 25% of the length from the root () to the tip () of the blade ().