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:
Jun. 21, 2011
Applicant:
Anders Varming Rebsdorf, Skanderborg, DK;
Inventor:
Anders Varming Rebsdorf, Skanderborg, DK;
Assignee:
Envision Energy (Denmark) ApS, Silkeborg, DK;
Primary Examiner:
Int. Cl.
CPC ...
F03D 9/00 (2006.01); H02P 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drive shaft for a wind turbine is shaped so as to allow for increased bending of the shaft, while being suitable for transferring torque in a wind turbine system. An example of such a shaping is a drive shaft having a helical rib defined on the surface of the shaft. A wind turbine incorporating such a shaft, and a method of manufacture of such a shaft are also described.
Published as: