发明名称 SPINDLE DRIVE APPARATUS AND METHODS
摘要 Systems and methods are disclosed for material treatment within a member or for removal of material from within a member. Embodiments have a spindle powered by a motor or motors positionable within the member during operation of the spindle; and, in certain particular aspects, such systems and methods are for forming a stator for a downhole motor.
申请公布号 US2011211928(A1) 申请公布日期 2011.09.01
申请号 US200913127029 申请日期 2009.10.26
申请人 NATIONAL OILWELL VARCO L.P. 发明人 WILMOT WESSLEY
分类号 B23C3/00;B23C9/00;F16H25/08 主分类号 B23C3/00
代理机构 代理人
主权项
地址
您可能感兴趣的专利