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. 12, 2019
Filed:
Nov. 30, 2016
Applicant:
William Scott Keeley, Charlestown, RI (US);
Inventor:
William Scott Keeley, Charlestown, RI (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F03D 1/04 (2006.01); F03D 1/06 (2006.01);
U.S. Cl.
CPC ...
F03D 1/04 (2013.01); F03D 1/0633 (2013.01); F05B 2240/221 (2013.01); F05B 2240/30 (2013.01);
Abstract
A semi-ringed airfoil is designed in conjunction with a fluid turbine rotor blade to provide increased rotor-tip speed, increased coefficient of power, reduced wind shear and reduced noise. A dual-winglet rotor blade in combination with a semi-ringed airfoil increases the above mentioned benefits by increasing the rotor-blade tip surface-area that is in contact with the area of increased fluid velocity over the semi-ringed airfoil.