HEAD ASSEMBLY

专利名称：HEAD ASSEMBLY

发明人：Beach, Andrew,McLeod, Gavin,Blakeway, Ben申请号：EP18161424.9申请日：20100222公开号：EP3358125A1公开日：20180808

专利附图：

摘要：A spear head assembly (12) is provided which comprises a spear point (16)having a proximal end (18) pivotally coupled about a pivot axis (20) and a sleeve (22) thatis biased in a direction toward a pointed end (24) of the spear point (16). The sleeve (22) iscoupled with the spear point (16) so that the spear point (16) and the pivot axis (20) can

move axially relative to the sleeve (22). The spear head assembly (12) enables a headassembly (10) to be coupled to an overshot to enable tripping through a drill string.

申请人：Imdex Global B.V.

地址：Herikerbergweg 238 110 CM Amsterdam Zuidoost NL

国籍：NL

代理机构：Ström & Gulliksson AB

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