发明名称 DUAL ROTATIONAL AND AXIAL LOAD PICK-UP ELEMENT
摘要 The invention relates to a device for transmitting torques to a polished rod and for accommodating axial loads of a polished rod and/or a hollow shaft for a borehole pump. The transmission of the torque and/or the accommodation of the axial load is ensured by a dual-action integral device.
申请公布号 WO2012092914(A3) 申请公布日期 2013.04.11
申请号 WO2011DE02036 申请日期 2011.11.24
申请人 NETZSCH OILFIELD PRODUCTS GMBH;DITTRICH, JOCHEN;ZUBER, ALEXANDER;CEMIN, ANGELO 发明人 DITTRICH, JOCHEN;ZUBER, ALEXANDER;CEMIN, ANGELO
分类号 E21B19/12;E21B43/12;F04C15/00;F04D13/10 主分类号 E21B19/12
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