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. 16, 2017
Filed:
Jan. 29, 2016
Applicants:
Soode Nagano Co., Ltd., Okaya-shi, Nagano, JP;
Nippon Light Metal Company, Ltd., Tokyo, JP;
Inventors:
Takayuki Sode, Okaya, JP;
Yukinori Sugiyama, Okaya, JP;
Shinichi Nomura, Tokyo, JP;
Masato Kobayashi, Niigata, JP;
Assignees:
SOODE NAGANO CO., LTD., Nagano, JP;
NIPPON LIGHT METAL COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 6/00 (2006.01); H01M 2/12 (2006.01); B21C 23/18 (2006.01); B21D 11/08 (2006.01); B21D 51/44 (2006.01); B21K 23/00 (2006.01); B21D 51/38 (2006.01); H01M 2/04 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1241 (2013.01); B21C 23/186 (2013.01); B21D 11/08 (2013.01); B21D 51/383 (2013.01); B21D 51/44 (2013.01); B21K 23/00 (2013.01); H01M 2/0426 (2013.01);
Abstract
A battery case lid is formed by working a metal plate, and includes a substrate section and an explosion-proof valve formed in the substrate section. The explosion-proof valve has a reduced thickness section that is thinner than the substrate section, and the reduced thickness section is formed by extending the metal plate by applying pressure while the metal plate is kept unrestrained.