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:
Sep. 27, 2022

Filed:

Jun. 28, 2018
Applicant:

Gd Midea Air-conditioning Equipment Co., Ltd., Guangdong, CN;

Inventors:

Changlin Yan, Guangdong, CN;

Liangrui Chen, Guangdong, CN;

Hongliang Yuan, Guangdong, CN;

Zhiqiang Liu, Guangdong, CN;

Xianyou Mao, Guangdong, CN;

Daijie Peng, Guangdong, CN;

Zhiqiang Yang, Guangdong, CN;

Liang Shen, Guangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24F 13/02 (2006.01);
U.S. Cl.
CPC ...
F24F 13/0209 (2013.01); F24F 13/0245 (2013.01);
Abstract

An air duct having first to third air ducts, each of the first to third air ducts has a duct structure having a first end and a second end, the duct structure of the each of the first to third air ducts are separable from each other, a cross sectional area of the first end is greater than a cross sectional area of the second end, a plurality of cross sectional areas between the first end and the second end decrease progressively from the first end to the second end, and the first to third air ducts are communicated successively in a direction such that the second end of the duct structure of the third air duct is arranged closer to the second end of the duct structure of the first air duct and further from the first end of the duct structure of the first air duct.


Find Patent Forward Citations

Loading…