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. 05, 2021
Filed:
Mar. 07, 2017
Applicant:
Johnson Electric S.a., Murten, CH;
Inventors:
Assignee:
JOHNSON ELECTRIC INTERNATIONAL AG, Murten, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/62 (2006.01); F04D 29/26 (2006.01); F04D 29/02 (2006.01); F04D 17/08 (2006.01); F04D 25/06 (2006.01); F04D 25/16 (2006.01); F04D 29/053 (2006.01); F04D 29/28 (2006.01); F04D 29/58 (2006.01);
U.S. Cl.
CPC ...
F04D 29/626 (2013.01); F04D 17/08 (2013.01); F04D 25/06 (2013.01); F04D 25/16 (2013.01); F04D 29/023 (2013.01); F04D 29/053 (2013.01); F04D 29/263 (2013.01); F04D 29/281 (2013.01); F04D 29/5806 (2013.01); F04D 29/588 (2013.01); F05D 2300/50211 (2013.01);
Abstract
A fan device includes a driving device, a fan wheel, and a locking fastener. The driving device includes a shaft. The fan wheel defines a shaft hole to receive the shaft. The locking fastener has a thermal expansion coefficient same as a thermal expansion coefficient of the shaft.