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. 28, 2025
Filed:
Aug. 08, 2024
Innovation Research Institute of Zhejiang University of Technology Shengzhou, Zhejiang, CN;
Shuiqing Zhou, Zhejiang, CN;
Xinhan Huang, Zhejiang, CN;
Xing He, Zhejiang, CN;
Zengliang Gao, Zhejiang, CN;
Lijian Guo, Zhejiang, CN;
Abstract
An unpowered cowl with adjustable fan blades and a waste heat recovery system for cooking fumes include a cowl body, lifting mechanisms, and a pressure sensor. The cowl body includes a top cap, a bottom ring, and the fan blades disposed between the top cap and the bottom ring. The pressure sensor is disposed on an inner wall of the top cap. An upper end of each of the fan blades is disposed above the top cap and slightly exceeds an outer edge of the top cap. The lifting mechanisms are annularly disposed on the top cap. The lifting mechanisms include lifting plates, electric pushing rods, and lifting shafts. The electric pushing rods are fixed on the top cap. The lifting shafts are connected to the fan blades. The electric pushing rods and the pressure sensor are electrically connected to a control box.