发明名称 |
AN IMPROVED SEAL BETWEEN PIPES |
摘要 |
A screw-threaded pipe joint comprising a pin having at one end a male screw-threaded portion and a box having at one end a female portion having a complementary screw-thread. The pin and box inter-engage along the threaded portions with the male thread extending to a male stop shoulder adjacent a complementary stop shoulder on the other portion. The complementary stop shoulder comprises a recess in the form of a cone receiver having a radial surface adjacent a corresponding radial surface on the complementary stop shoulder. A curved sealing surface on the pin sealingly engages a corresponding curved sealing surface on the complementary stop shoulder of the box, each curved sealing surface lying on the arc of the circumference of a separate circle, and wherein the curvature of the box sealing surface is greater than on the sealing surface on the pin. |
申请公布号 |
EP2572132(A1) |
申请公布日期 |
2013.03.27 |
申请号 |
EP20100801438 |
申请日期 |
2010.12.13 |
申请人 |
HIGH SEALED AND COUPLED "HSC" FZCO |
发明人 |
UENO, KATSUO;HIGNETT, IAN, HAROLD |
分类号 |
F16L15/00 |
主分类号 |
F16L15/00 |
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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