| 20100123308 | RETAINING ARRANGEMENT, SUB ADAPTOR AND/OR DRILL SPINDLE - 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. | 05-20-2010 |
