发明名称 Threaded joint for tubes
摘要 The threaded joint for tubes according to the invention concerns sealed end to end connections of metal tubes useable in particular in the petroleum industry. This joint comprises a sleeve provided with two housings with tapered threads into which are screwed the male extremities of two metal tubes provided with corresponding threads having non-threaded extremity zones the front walls of which abut one against the other, a clearance existing between the lateral walls of these zones and the annular wall of he sleeve opposite. Two pairs of male/female shoulder stops prevent over-screwing. The heights of the teeth of the male and female threads are identical.
申请公布号 US5782503(A) 申请公布日期 1998.07.21
申请号 US19960636932 申请日期 1996.04.24
申请人 VALLOUREC OIL & GAS;SUMITOMO METAL INDUSTRIES 发明人 NOEL, THIERRY;NARITA, AKIRA
分类号 F16L9/02;E21B17/042;F16L15/04;F16L15/06;(IPC1-7):F16L7/00 主分类号 F16L9/02
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