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.

Date of Patent:
Feb. 17, 2026

Filed:

Mar. 06, 2025
Applicant:

Delta Electronics, Inc., Taoyuan, TW;

Inventors:

Shun-Chen Chang, Taoyuan, TW;

Chin-Cheng Tsao, Taoyuan, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/28 (2006.01); F04D 17/06 (2006.01); F04D 29/66 (2006.01);
U.S. Cl.
CPC ...
F04D 29/281 (2013.01); F04D 17/06 (2013.01); F04D 29/662 (2013.01); F04D 29/666 (2013.01);
Abstract

An impeller wheel includes a top ring, a bottom disc, and a plurality of fan blades. The inner edge of the top ring surrounds an air inlet. The top ring has a curved structure. The inner edge of the bottom disc surrounds an opening. The bottom disc has a curved structure. The fan blade has a front edge, a top edge, a rear edge, and a bottom edge. The top edge and the bottom edge are fixed to the top ring and the bottom disc, respectively. The top edge and the top ring define an upper connection line, and the bottom edge and the bottom disc define a lower connection line. When viewed from above, the upper and lower connection lines intersect, and a portion of the fan blade is joined with the upper and lower connection lines so as to form a contour line.


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