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:
Jul. 30, 2019
Filed:
Aug. 23, 2016
Applicant:
Flexxaire Inc, Edmonton, CA;
Inventors:
Assignee:
FLEXXAIRE INC, Edmonton, Alberta, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 25/08 (2006.01); F04D 29/36 (2006.01); F04D 29/38 (2006.01);
U.S. Cl.
CPC ...
F04D 29/384 (2013.01); F04D 25/08 (2013.01); F04D 29/362 (2013.01); F04D 29/366 (2013.01); F05B 2240/30 (2013.01);
Abstract
A fan blade is mounted on a shaft or arranged to vary in pitch via rotation about a pitching axis. The fan blade is mounted with a center of mass offset from the shaft or pitching axis. This offset reduces torque around the shaft or pitching axis.