发明名称 |
THREADED JOINT FOR STEEL PIPES |
摘要 |
A threaded joint for steel pipes comprises a pin (1) and a box (2). The pin has male thread (11), a sealing surface (13), and a shoulder surface (14) located on the end face of the pin. Correspondingly, the box has female thre ad (21), a sealing surface (23), and a shoulder surface (24) which can mate or contact with the corresponding portions of the pin. The shoulder surface (14 ) of the pin (1) is provided at an end face of the pin. The sealing surface (1 3) of the pin (1) is located on a pipe end side near the male thread (11). A a nose portion (15) is provided on the pin (1) between the sealing surface (13 ) and the shoulder surface (14), the nose portion (15) being not in contact wi th a corresponding portion of the box (2).
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申请公布号 |
CA2527944(A1) |
申请公布日期 |
2004.12.16 |
申请号 |
CA20042527944 |
申请日期 |
2004.06.04 |
申请人 |
VALLOUREC MANNESMANN OIL & GAS FRANCE;SUMITOMO METAL INDUSTRIES, LTD. |
发明人 |
VERGER, ERIC;SUGINO, MASAAKI;ROUSSIE, GABRIEL;YAMAMOTO, MIYUKI;DUTILLEUL, PIERRE;IWAMOTO, MICHIHIKO;NAGASAKU, SHIGEO |
分类号 |
F16L9/12;E21B17/042;F16L15/04;F16L15/06 |
主分类号 |
F16L9/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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