发明名称 |
Retaining arrangement, sub adaptor and/or drill spindle |
摘要 |
A retaining arrangement suitable for use with a drill string assembly having a sub adaptor and a drill spindle in use connected together, the retaining arrangement including: one or more retaining bodies, the or each retaining body comprising a connection region for removably connecting the or each retaining body to one of the sub adaptor and the drill spindle; and a first retaining or catch region adapted to catch the other of the sub adaptor and drill spindle. |
申请公布号 |
US8944188(B2) |
申请公布日期 |
2015.02.03 |
申请号 |
US200912466768 |
申请日期 |
2009.05.15 |
申请人 |
Cardinal Trading Company Pty Ltd |
发明人 |
Lowry Jacob Garth |
分类号 |
E21B17/03;E21B19/16;F16L21/06;F16L21/08 |
主分类号 |
E21B17/03 |
代理机构 |
Morris, Manning & Martin, LLP |
代理人 |
Morris, Manning & Martin, LLP ;Raimund Christopher W. |
主权项 |
1. A retaining arrangement suitable for use with a drill string assembly having a sub adaptor and a drill spindle in use connected together via a screw thread arrangement, the retaining arrangement including:
one or more retaining bodies, the or each retaining body comprising a connection region for removably connecting the or each retaining body to one of the sub adaptor and the drill spindle; and a first retaining or catch region adapted to catch the other of the sub adaptor and drill spindle; wherein the first retaining region includes a catch element; wherein the catch element is a peripheral flange or rib; wherein the connection region is removably connected to one of the sub adaptor and the drill spindle by one or more fasteners and includes one or more openings adapted to receive the one or more fasteners; and wherein the fasteners are screw thread fasteners and are removably connected to the sub adaptor or drill spindle by a corresponding screw thread arrangement located on the one of the sub adaptor and drill spindle. |
地址 |
Branxton, NSW AU |