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:
Feb. 18, 2014
Filed:
Aug. 04, 2009
Yasuhide Nakayama, Kyoto, JP;
Eiji Hojo, Kyoto, JP;
Masashi Shiota, Kyoto, JP;
Shin Ohsaki, Kyoto, JP;
Shinichi Egami, Kyoto, JP;
Yasuhide Nakayama, Kyoto, JP;
Eiji Hojo, Kyoto, JP;
Masashi Shiota, Kyoto, JP;
Shin Ohsaki, Kyoto, JP;
Shinichi Egami, Kyoto, JP;
GS Yuasa International Ltd., , JP;
Abstract
A lead-acid battery comprising a container having at least one cell chamber and a lid body for covering a top opening of the container. The lid body has on a top surface a recessed portion having therein an annular portion protruding upward and having, in an area of a bottom wall inside the protruding portion, an exhaust hole for exhausting gas from the cell chamber, wherein a guide passage for guiding gas from the exhaust hole to the outside is formed by joining the protruding portion with a joining portion provided on the lid body cover. An annular groove formed between the protruding portion and the vertical wall is covered with an outer periphery of the lid body coverand the guide passage is isolated from the groove.