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:
Apr. 08, 2003
Filed:
Aug. 31, 2001
Applicant:
Inventor:
Isao Suzuki, Tokyo, JP;
Assignee:
Flowell Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 2/500 ;
U.S. Cl.
CPC ...
F16L 2/500 ;
Abstract
The present invention relates to a method of constructing a tube joint wherewith one end T of a tubing T is heated to be softened; the softened end T of the tubing T is inserted into a drop-off prevention ring ; the end T of the tubing T is upset by means of an upsetting core such that the anchoring portion of the drop-off prevention ring bites into the softened end T of the tubing T; and the end T of the tubing T is cooled to be hardened with the anchoring portion of the drop-off prevention ring being kept biting into it, and to such tube joint.