发明名称 Electrically insulated wedge thread connection
摘要 An electrically-insulative threaded connection includes a pin member having a pin thread and a box member having a box thread. An insulating composite layer is disposed between the pin thread and the box thread. The insulating composite layer includes an insulating fiber and insulating resin. The pin thread and the box thread are wedge threads. A method of making an electrically-insulative threaded connection includes forming a pin wedge thread on a pin member and winding a filament over the pin wedge thread. The filament is wetted with a resin, thereby forming a composite layer. The composite layer is cured and machined to mate with a box wedge thread.
申请公布号 US2008084060(A1) 申请公布日期 2008.04.10
申请号 US20070952538 申请日期 2007.12.07
申请人 HYDRIL COMPANY LLC 发明人 REYNOLDS HARRIS A.JR.
分类号 F16L25/02 主分类号 F16L25/02
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