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:
Apr. 27, 2021
Filed:
May. 29, 2018
Asia Vital Components Co., Ltd., New Taipei, TW;
Liang-Hua Xu, New Taipei, TW;
Te-Chung Wang, New Taipei, TW;
Asia Vital Components Co., Ltd., New Taipei, TW;
Abstract
A fan wheel structure includes a hub provided with a plate member and a plurality of blades. The plate member is located around the hub and has an upper side and a lower side. The blades are arranged on the upper side of the plate member and respectively have a connecting end connected to the hub as well as a free end. The blades respectively include a backward-curved section, a middle section and a forward-curved section. The backward-curved section is located adjacent to the connecting end and connected to the upper side of the plate member; the forward-curved section is located adjacent to the free end; and the middle section is connected at two opposite ends to the backward-curved section and the forward-curved section. And, an air passage is formed on the upper side of the plate member between any two adjacent backward-curved sections.