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:
Dec. 23, 2025
Filed:
Mar. 20, 2024
Applicant:
Vincent Loccisano, Wellesley, MA (US);
Inventor:
Vincent Loccisano, Wellesley, MA (US);
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F03D 1/04 (2006.01);
U.S. Cl.
CPC ...
F03D 1/046 (2023.08); F03D 1/053 (2023.08); F05B 2220/30 (2013.01); F05B 2240/12 (2013.01);
Abstract
A fluid turbine has an annular-airfoil duct and passive, leading-edge flaps on the airfoil that enhance yaw stability and reduce extreme loads in excessive fluid-stream velocities when the turbine is in shutdown mode, or when it is parked or otherwise not producing power. Flaps retract and deploy passively to reduce loads by eliminating the lift over the airfoil, providing manageable loads in high-velocity flow at Up-0. The flaps are intended for use in extreme and unlikely events. Appropriate design and material selection mitigates the detrimental effects of dormancy.