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:
Aug. 27, 2002
Filed:
Apr. 22, 1998
Akira Iwamura, Toyohashi, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An enclosed storage battery having an excellent closed tightness and reliability is obtained. An annular bump is formed integrally with the upper periphery of the penetration hole of a lead-alloy bushing buried in the top of the lid for covering the jar. The leading end of the pole passing through the penetration hole of the bushing is inserted into the lower part of the annular bump. A recess is formed on the, top of the leading end of the pole so as to be easier to melt the upper portion of the pole, and by welding with the inner wall of the penetration hole of the bushing, the annular bump is later melted, and the bushing penetration hole is filled up with the fused lead.