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. 17, 2018
Filed:
Dec. 04, 2013
Applicant:
Delta Electronics, Inc., Taoyuan Hsien, TW;
Inventors:
Tsung-Yu Lei, Taoyuan Hsien, TW;
Ching-Hua Wu, Taoyuan Hsien, TW;
Assignee:
DELTA ELECTRONICS, INC., Taoyuan Hsien, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/42 (2006.01);
U.S. Cl.
CPC ...
F04D 29/4226 (2013.01); F04D 29/4213 (2013.01);
Abstract
A fan frame of a centrifugal fan comprises a housing and an inlet structure. The housing includes an opening. The inlet structure is disposed at the opening and includes a top portion and an edge portion. The top portion is disposed around the opening and includes a plurality of first chamfering angles, at least one of the chamfering angles is different from the others. The edge portion extends from the top portion to the inside of the housing through the opening and includes a plurality of second chamfering angles. A centrifugal fan including the fan frame is also disclosed.