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. 01, 2022
Filed:
Oct. 29, 2019
Applicant:
Dri-eaz Products, Inc., Burlington, WA (US);
Inventor:
Alexander John Uffelman, Bellingham, WA (US);
Assignee:
Legend Brands, Inc., Burlington, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/38 (2006.01); F28F 5/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/384 (2013.01); F04D 29/388 (2013.01); F05B 2250/184 (2013.01); F05B 2260/221 (2013.01); F28F 5/00 (2013.01); F28F 2250/08 (2013.01);
Abstract
Contoured fan blades and associated systems and methods are disclosed herein. A representative embodiment includes a hub and multiple curved fan blades circumferentially arranged around, and coupled to, the hub. Individual fan blades can have a tip, a first curved edge, and a second curved edge. The first and second curved edges extend over at least part of the length between the hub to the tip of the fan blade. The fan blade is formed with multiple upper channels and multiple lower channels. The multiple upper and lower channels extend from the first curved edge to the second curved edge.