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.

Date of Patent:
Mar. 08, 2011

Filed:

Nov. 08, 2007
Applicants:

Vladimir Krivcov, Miass, RU;

Vladimir Krivospitski, Miass, RU;

Vasili Maksimov, Miass, RU;

Richard Halstead, Rohnert Park, CA (US);

Jurij Grahov, Miass, RU;

Inventors:

Vladimir Krivcov, Miass, RU;

Vladimir Krivospitski, Miass, RU;

Vasili Maksimov, Miass, RU;

Richard Halstead, Rohnert Park, CA (US);

Jurij Grahov, Miass, RU;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D 9/00 (2006.01); H02P 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A vertical axis wind turbine is described. The wind turbine can include a top ring, a middle ring and a lower ring, wherein a plurality of vertical airfoils are disposed between the rings. For example, three vertical airfoils can be attached between the upper ring and the middle ring. In addition, three more vertical airfoils can be attached between the lower ring and the middle ring. When wind contacts the vertically arranged airfoils the rings begin to spin. By connecting the rings to a center pole which spins an alternator, electricity can be generated from wind.


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