Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takeshi Okamoto0
Seiji Anzai0
Date of Patent
June 16, 2015
0Patent Application Number
128657990
Date Filed
August 31, 2009
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A lead-acid battery having a reliable exhaust structure suppressing unexpected leakage of acid mist and gas to outside the battery. The battery having a first gas exhaust path A for guiding gas generated in a plate pack from a cell compartment to a recess formed in a cover. A top lid is placed on the top surface of the cover to extend over the recess. The top lid and the cover form a closed shape so that the recess and the top lid form an exhaust chamber. A through hole for establishing communication between a first opening formed in the recess and a second opening formed in the outer surface of the cover, serves as a second gas exhaust path B which establishes communication with the first gas exhaust path A through the exhaust chamber.
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