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:
Jun. 25, 2024
Filed:
Mar. 27, 2019
Applicant:
Nhk Spring Co., Ltd., Yokohama, JP;
Inventors:
Assignee:
NHK SPRING CO., LTD., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 1/04 (2006.01); B21D 22/20 (2006.01); B21D 51/24 (2006.01); B23K 26/21 (2014.01); F15B 1/10 (2006.01); B21D 35/00 (2006.01); B21D 51/16 (2006.01);
U.S. Cl.
CPC ...
F15B 1/04 (2013.01); B21D 22/20 (2013.01); B21D 51/24 (2013.01); B23K 26/21 (2015.10); F15B 1/103 (2013.01); F15B 1/106 (2013.01); B21D 35/006 (2013.01); B21D 51/16 (2013.01); F15B 2201/3153 (2013.01); F15B 2201/405 (2013.01); F15B 2201/4056 (2013.01); F15B 2201/605 (2013.01);
Abstract
A shell memberconstituting an accumulatorincluding a cover member, a shell memberhaving a cylindrical portion, an opening portionformed at one end of the cylindrical portionand welded to the cover member, and a closed portionformed at another end of the cylindrical portion, and an accumulation partaccommodated in the shell member. The cylindrical portionincludes an upper end portion, and a protruding portionhaving the opening portion. The protruding portionis thicker than the upper end portion