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:
Oct. 13, 2009
Filed:
Jan. 25, 2005
Applicant:
Shizuo Wada, Koga, JP;
Inventor:
Shizuo Wada, Koga, JP;
Assignee:
Sanoh Kogyo Kabushiki Kaisha, Koga-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A flared end structure formed by processing an end part of a metal tube which is pressed against a seat formed in a member by tightening a coupling nut to the member. The flared end structure has a joining end part to be pressed against the seat of the member, and a curved part continuous with the joining end part. The curved part has an outer surface having a curved area, and a concave inner surface having a bottom edge. The curved area of the outer surface has a radius of curvature smaller than the wall thickness of the metal tube.