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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.:

US 12776549 B1

PDFFull Text
Date of Patent:
Oct. 27, 2026

Filed:

Dec. 13, 2021

Sealing body for cylindrical storage battery and cylindrical storage battery using same

Applicant:

Fdk Corporation, Tokyo, JP;

Inventors:

Yusuke Fukuda, Tokyo, JP;

Hiroyuki Shibaoka, Tokyo, JP;

Assignee:

FDK CORPORATION, Tokyo, JP;

Attorney:

JCIPRNET

Primary Examiner:

Brian K Talbot

Int. Cl.
CPC ...
H01M 50/325 (2021.01); H01M 50/107 (2021.01); H01M 50/152 (2021.01); H01M 10/04 (2006.01); H01M 50/147 (2021.01); H01M 50/159 (2021.01); H01M 50/166 (2021.01); H01M 50/171 (2021.01); H01M 50/183 (2021.01); H01M 50/186 (2021.01); H01M 50/317 (2021.01);
U.S. Cl.
CPC ...
H01M 50/325 (2021.01); H01M 50/107 (2021.01); H01M 50/152 (2021.01); H01M 10/04 (2013.01); H01M 50/147 (2021.01); H01M 50/159 (2021.01); H01M 50/166 (2021.01); H01M 50/171 (2021.01); H01M 50/183 (2021.01); H01M 50/186 (2021.01); H01M 50/317 (2021.01); H01M 2200/20 (2013.01);
Abstract

A sealing body and a cylindrical storage battery are provided. The sealing body includes: a first cover plate fixed to the battery; a second cover plate forming a housing space between itself and first cover plate; and an elastic valving element disposed inside housing space and compressed between the first and second cover plate. The first cover plate includes an annular, hollow disk-shaped base portion around an axis line, an annular first sidewall portion extending downward from an inner peripheral edge portion of the base portion, and a bottom wall portion connected to the first sidewall portion. The first sidewall portion has a first through-hole passing through the first sidewall portion in a direction approaching axis line. The second cover plate has a communicating hole communicating housing space and an external space. The valving element is disposed between the first through-hole and the communicating hole in direction of fluid flow.

Find Patent Forward Citations

Fukuda, Yusuke. (2026). Sealing body for cylindrical storage battery and cylindrical storage battery using same (U.S. Patent No. 12776549). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12776549

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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