发明名称 ROD LOCKING APPARATUS
摘要 A rod locking apparatus comprising a housing having a first and second intersecting tubular passages, the first tubular passage being provided with a serrated locking surface, a wedge piston slidably arranged in the first tubular passage, the wedge piston having a front side with a wedge surface adapted in use to engage an end surface of a rod to be locked, wherein the wedge piston has a serrated rear side which engages with the serrated locking surface.
申请公布号 WO2017030444(A1) 申请公布日期 2017.02.23
申请号 WO2016NO50167 申请日期 2016.08.15
申请人 MARITIME PROMECO AS 发明人 HÅVERSTAD, Thor Arne;NORBOM, Erik;WILLIAMS III, Bolie C.;NANCE, J. Gilbert;ALSUP, John L.;EAGLES, Marion E.
分类号 E21B33/06 主分类号 E21B33/06
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