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:
Feb. 26, 2019
Filed:
Jul. 12, 2012
Applicants:
Daniel Farb, Beit Shemesh, IL;
Avner Farkash, Beit Shemesh, IL;
Inventors:
Daniel Farb, Beit Shemesh, IL;
Avner Farkash, Beit Shemesh, IL;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D 7/06 (2006.01); H02K 7/18 (2006.01); F03D 3/00 (2006.01); F03D 3/06 (2006.01);
U.S. Cl.
CPC ...
H02K 7/1823 (2013.01); F03D 3/005 (2013.01); F03D 3/062 (2013.01); F03D 7/06 (2013.01); F05B 2240/213 (2013.01); F05B 2240/313 (2013.01); Y02E 10/74 (2013.01);
Abstract
A wind turbine, particularly vertical axis, whose diameter is extensible and retractable, either from the length of the arms or the angle of the blades, or both, has advantages in operating in low wind speed regimes and surviving in high wind speed, regimes. The current application describes how to construct such a turbine, particularly the control mechanisms and the optimal aerodynamic configurations of the blades.