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. 15, 2019
Filed:
Dec. 18, 2013
Jfe Steel Corporation, Tokyo, JP;
Takuya Nagahama, Handa, JP;
Hiroshi Chikatsune, Handa, JP;
Kazunari Takahashi, Handa, JP;
Masaki Yoshikawa, Handa, JP;
Jun Takano, Handa, JP;
Masateru Ueta, Handa, JP;
Takamasa Kawai, Handa, JP;
JFE STEEL CORPORATION, Tokyo, JP;
Abstract
A threaded joint for pipes including a pin and a box, characterized in that the relationship 0.05 degrees≤θ−θ≤2.0 degrees is satisfied, where θis an angle of an insertion surface of the female thread on the box side relative to a plane perpendicular to an axis of pipe, and θis an angle of an insertion surface of the male thread, which faces the insertion surface of the female thread, on the pin side relative to the plane perpendicular to the axis of pipe.