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:
Oct. 30, 2012
Filed:
May. 13, 2010
Yusuke Itoh, Tokushima, JP;
Kenji Nansaka, Habikino, JP;
Yasuhiro Yamauchi, Sumoto, JP;
SANYO Electric Co., Ltd., Moriguchi-shi, Osaka, JP;
Abstract
The sealed batteryincludes an electrolyte pour holepassing through the sealing plate; a rivethaving a shank part, a flange partcovering a peripheral surface of the electrolyte pour hole, and a crimping partin the electrolyte pour hole; and a gasketinterposed between the electrolyte pour holeand the rivetand adhering to the peripheral surface of the electrolyte pour holeand to a back side of the flange partof the rivet; on the peripheral surface of the electrolyte pour hole, an inner annular first convex partand an outer annular second convex partare formed; and on the back side of the flange partof the rivet, an annular third convex partis formed so as to be superimposed over the second convex part