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:
Sep. 13, 2022
Filed:
Oct. 10, 2017
Toyo Seikan Co., Ltd., Tokyo, JP;
Takeshi Aihara, Yokohama, JP;
Masaomi Tamura, Tokyo, JP;
Toshiyuki Hasegawa, Kawasaki, JP;
Takeshi Murase, Kawasaki, JP;
Tomohiko Nakamura, Yokohama, JP;
Naoya Matsumoto, Kawasaki, JP;
Nobuhiro Sasajima, Yokohama, JP;
TOYO SEIKAN CO., LTD., Tokyo, JP;
Abstract
A method for manufacturing a metal bottle having a mouthpiece in an upper part of a bottomed cylindrical bottle body, including forming a screw part on the mouthpiece and then forming a curl at a tip of the mouthpiece. During formation of the screw part, a height of the first-stage screw thread from a tip side in a complete screw part and a height of the second-stage screw thread from the tip side are substantially equal and a distance between an apex part of the first-stage screw thread and a bottle axis is smaller than a distance between the apex part of the second-stage screw thread and the bottle axis. After formation of the curl, a distance between the apex part of the first-stage screw thread and the bottle axis and a distance between the apex part of the second-stage screw thread and the bottle axis are substantially equal.