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:
Sep. 09, 2025
Filed:
Mar. 07, 2025
Applicant:
Evapco, Inc., Taneytown, MD (US);
Inventors:
Assignee:
Evapco, Inc., Taneytown, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/38 (2006.01); F04D 19/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/384 (2013.01); F04D 19/002 (2013.01);
Abstract
A fan blade that responds to external perturbations in a way that reduces the effect of the perturbations on the blade. The fan blade is designed so that the twist center is forward of the pressure center relative to the air flow direction, and the distance between the twist center and the pressure center is greater than zero. Fan blades having this feature will deform in a way to decrease aerodynamic load when conditions cause an increase in aerodynamic load and conversely increase aerodynamic load when conditions cause a decrease in aerodynamic load.