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:
Nov. 05, 2019
Filed:
Jan. 06, 2016
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/12 (2006.01); B25B 21/00 (2006.01); H01M 2/10 (2006.01); H01M 2/30 (2006.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 2/1241 (2013.01); B25B 21/00 (2013.01); H01M 2/1022 (2013.01); H01M 2/1055 (2013.01); H01M 2/30 (2013.01); H01M 10/425 (2013.01); H01M 10/4207 (2013.01); H01M 2200/20 (2013.01); H01M 2220/30 (2013.01);
Abstract
A battery pack for an electric power tool is adapted for attachment in a removable manner to a tool body of the electric power tool. The battery pack includes an outer shell and a rechargeable battery unit accommodated in the outer shell. The rechargeable battery unit includes at least one rechargeable battery cell, a battery case that is sealed accommodating the at least one rechargeable battery cell, and a relief valve arranged on the battery case. The relief valve is configured to open when the at least one rechargeable battery cell generates gas and builds up pressure in the battery case to a predetermined value or greater.