发明名称 |
AN IMPROVED SEAL BETWEEN PIPES |
摘要 |
A pipe joint comprises a pin having a male screw-threaded portion and a box having a complementary screw-threaded portion. The threaded portions of the pin and box inter-engage along the greater part of the axial length of the threaded portions, the male thread extending to a male stop shoulder adjacent a complementary stop shoulder on the other portion. The pin further comprises a radial surface adjacent a corresponding radial surface on the complementary stop shoulder of the box, a curved sealing surface of the radial surface on the pin sealingly engaging a corresponding curved sealing surface on the corresponding radial surface on the complementary stop shoulder. Each of the curved sealing surfaces is so shaped to lie on an arc of a separate ellipse. The parameters of the ellipses are carefully chosen to maximize the strength and robustness of the seal. |
申请公布号 |
EP2641007(B1) |
申请公布日期 |
2016.03.02 |
申请号 |
EP20100801672 |
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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