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:
Nov. 01, 2016
Filed:
May. 26, 2011
Brian Plourde, St. Paul, MN (US);
John Abraham, Minneapolis, MN (US);
Brian Plourde, St. Paul, MN (US);
John Abraham, Minneapolis, MN (US);
Windstrip LLC, St. Paul, MN (US);
Abstract
One embodiment of a rotor blade for a vertical axis wind turbine comprises a central portion having a central axis and at least two blade members. The blade members each have a proximal end attached to the central portion, a high drag side and a low drag side that is opposite the high drag side. Each of the blade members also includes an uncovered vent comprising an opening through the blade member that provides an unobstructed path for airflow through the blade member. In one embodiment, a pair of fins are positioned adjacent the opening of the vent and extend from the high drag side of the blade member.