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:
Mar. 03, 2026
Filed:
Aug. 31, 2022
Calb Co., Ltd., Suzhou, CN;
Jiuling Xu, Changzhou, CN;
Yongjie Zhang, Luoyang, CN;
Hao Zhao, Changzhou, CN;
Lulu Zhang, Changzhou, CN;
CALB Co., Ltd., Jiangsu, CN;
Abstract
A battery includes an explosion-proof valve and a battery casing. The explosion-proof valve is arranged in the battery casing. The explosion-proof valve includes a first straight line segment, a second straight line segment and a circular arc segment. Two ends of the circular arc segment are respectively connected to the first straight line segment and the second straight line segment. Lengths of the first straight line segment and the second straight line segment are respectively a and b, and an arc length of the circular arc segment is c, a radius of curvature of the circular arc segment is r, and 0.8≤a/b≤1.2 and 0.5≤c/r≤2.7 are satisfied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile