专利内容由知识产权出版社提供
专利名称：COUPLING ASSEMBLY AND PROTECTIVE
RING THEREFOR
发明人：MCLAUGHLIN Thomas Kilpatrick申请号：EP07733561.0申请日：20070321公开号：EP2069672B1公开日：20140312
摘要：A protective ring (40) for use in a coupling assembly (10), the coupling assemblycomprising a coupling body (20) of generally cylindrical shape with a channeltherethrough, each end of said coupling body having a thread (22, 24) for threadedmating with a tubular (32) so that the coupling assembly may provide a connectionbetween two tubulars, the protective ring comprising a ring body for positioning adjacentan interior wall (26) of said coupling body (20) between the two ends thereof and locatedfor contact by said two tubulars (32), said ring body being generally cylindrical and havinga ring channel therethrough, characterised in that said protective ring comprises anenergizing member (42), the arrangement being such that, in use, upon compression ofsaid protective ring (40) between said two tubulars (32) said energizing member (42)urges said ring body against said interior wall (26) of said coupling body (20) wherebycorrosive material is inhibited from contact therewith.
申请人：NAT OILWELL VARCO LP
地址：US
国籍：US
代理机构：Lucas, Phillip Brian
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