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. 10, 2025
Filed:
Apr. 06, 2020
Applicant:
Sanoh Industrial Co., Ltd., Tokyo, JP;
Inventors:
Guang Ping Lan, Koga, JP;
Kazuhiko Nakazato, Koga, JP;
Takaaki Habu, Koga, JP;
Kazuki Yasuraoka, Koga, JP;
Assignee:
SANOH INDUSTRIAL CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 53/84 (2006.01); B29C 37/00 (2006.01); B29C 53/08 (2006.01); B29K 701/12 (2006.01); B29L 23/00 (2006.01);
U.S. Cl.
CPC ...
B29C 53/84 (2013.01); B29C 37/00 (2013.01); B29C 53/083 (2013.01); B29C 2037/90 (2013.01); B29K 2701/12 (2013.01); B29L 2023/22 (2013.01);
Abstract
A thermoplastic tube bending method suppresses springback after the processing by a highly safe and short bending step. The thermoplastic tube bending method includes a step Sof preheating the thermoplastic tube, a step Sof bending the preheated thermoplastic tube by using a forming mold, and a step Sof forming the bent thermoplastic tube by temperature control of an electric heater provided to the forming mold.