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:
Jan. 21, 2020
Filed:
Apr. 07, 2016
Horton, Inc., Roseville, MN (US);
Hugh Schilling, Fountain Hills, AZ (US);
David R. Hennessy, Burnsville, MN (US);
Kevin Cahill, Fishers, IN (US);
Horton, Inc., Roseville, MN (US);
Abstract
A fan blade () includes a working region () having a leading edge () and a pressure side (). A plurality of flow modification features (-to-) are positioned at the working region, including first and second flow modification features (---) each having a wedge shape with a pointed end () and a wider end (), and located on the pressure side. A length of the first flow modification feature is less than a chord length of the fan blade, and the pointed end of the first flow modification feature is spaced from the leading edge. A length of the second flow modification feature is less than the chord length of the fan blade, and the pointed end of the second flow modification feature is spaced from the leading edge. The first and second flow modification features are spaced from each other to define a channel () therebetween.