发明名称 METHOD AND SYSTEM FOR SEALING AND HANDLING PIPE
摘要 In one aspect, the present invention relates to a friction-pin unit. The friction-pin unit includes a sleeve and a guide cone formed at a first end of the sleeve. A shaft is disposed coaxially within the sleeve and a plurality of friction pins extend radially outward from the shaft. The plurality of friction pins are adapted for interference-fit engagement with an inner surface of the pipe. A ring seal is circumferentially disposed around an inner surface of the sleeve. The ring seal adapted to circumferentially seal an outer surface of the pipe.
申请公布号 US2013049385(A1) 申请公布日期 2013.02.28
申请号 US201213597547 申请日期 2012.08.29
申请人 AUSTIN JOHN A.;YOUNG RAYMOND CHRISTOPHER 发明人 AUSTIN JOHN A.;YOUNG RAYMOND CHRISTOPHER
分类号 E21B31/20;B23P17/00;B66C1/56 主分类号 E21B31/20
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