发明名称 Pipe Coupling Spacer Insert
摘要 A tubular coupling system and a protective spacer for use within a coupling, and methods of their use. The spacer, in at least one embodiment, has two or more separate and separable members that are length-adjustable to accommodate different distances between ends of two tubulars connected with a coupling.
申请公布号 US2011031738(A1) 申请公布日期 2011.02.10
申请号 US20100906299 申请日期 2010.10.18
申请人 NATIONAL OILWELL VARCO, L.P. 发明人 PERSON DAVID VERNON
分类号 F16L21/00;F16L35/00 主分类号 F16L21/00
代理机构 代理人
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