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. 28, 2012
Filed:
Jan. 06, 2011
John M. Obrecht, Louisville, CO (US);
Kevin J. Standish, Erie, CO (US);
Paul F. Medina, Boulder, CO (US);
John M. Obrecht, Louisville, CO (US);
Kevin J. Standish, Erie, CO (US);
Paul F. Medina, Boulder, CO (US);
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The present invention includes a rotor blade () having a blade body () with a leading edge () and a trailing edge () and opposed first and second surfaces () extending there between defining an airfoil shape () in cross-section. A passageway () extends through the blade body () between the first and second surfaces (). A flexible member () is sealed over one end () of the passageway (). Advantageously, the flexible member () is passively responsive to changes in a differential pressure between the first and second surfaces () to move between a deactivated position () and an activated position () where the flexible member () extends away from the airfoil shape () to function as a load mitigation device () for the wind turbine rotor blade ().