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:
May. 05, 2026
Filed:
Oct. 08, 2023
Hefei Midea Refrigerator Co., Ltd., Hefei, CN;
Hefei Hualing Co., Ltd., Hefei, CN;
Midea Group Co., Ltd., Foshan, CN;
Benlei Liang, Hefei, CN;
Chao Liu, Hefei, CN;
HEFE! MIDEA REFRIGERATOR CO., LTD., Hefei, CN;
HEFEI HUALING CO., LTD., Hefei, CN;
MIDEA GROUP CO., LTD., Foshan, CN;
Abstract
The present application relates to the field of household appliance technologies and discloses a hinge assembly and an opening and closing device. The hinge assembly includes a first matching member and a second matching member rotatably connected. The first matching member has a first curved surface and a second curved surface at one end, and the second matching member has a third curved surface and a fourth curved surface at one end. The first matching member and the second matching member have a first state and a second state. The first matching member and the second matching member are rotatable relative to each other around a first axis to be switchable between the first state and the second state. In the first state, the first curved surface abuts against and is matched with the third curved surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile