Invention Grant
- Patent Title: Threaded joint for steel pipe
- Patent Title (中): 钢管螺纹接头
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Application No.: US14394987Application Date: 2013-06-04
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Publication No.: US09568126B2Publication Date: 2017-02-14
- Inventor: Masayoshi Sasaki , Katsutoshi Sumitani , Kunio Goto
- Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION , VALLOUREC OIL AND GAS FRANCE
- Applicant Address: JP Tokyo FR Aulnoye-Aymeries
- Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION,VALLOUREC OIL AND GAS FRANCE
- Current Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION,VALLOUREC OIL AND GAS FRANCE
- Current Assignee Address: JP Tokyo FR Aulnoye-Aymeries
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2012-130134 20120607
- International Application: PCT/JP2013/065472 WO 20130604
- International Announcement: WO2013/183634 WO 20131212
- Main IPC: F16L15/04
- IPC: F16L15/04 ; F16L15/00 ; C10M107/50 ; E21B17/042
Abstract:
A threaded joint for a steel pipe includes a pin and a box each of which is provided with a contact surface that includes an unthreaded metal contact portion having a seal portion and a threaded portion. This threaded joint includes an ultraviolet ray-curable resin coating film that is formed on the contact surface of at least one of the pin and the box; and an acrylic silicone resin coating film that is formed on at least a portion of a surface of the ultraviolet ray-curable resin coating film.
Public/Granted literature
- US20150130182A1 THREADED JOINT FOR STEEL PIPE Public/Granted day:2015-05-14
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