|
This page displays all 「FI」 in main group E21B4/00. |
HB:Handbook | ||||
|
CC:Concordance | |||||
|
|
Drives for drilling, used in the borehole [3] | HB | CC | 2D129 | |
|
|
.Fluid rotary type drives[2006.01] | HB | CC | 2D129 | |
|
|
Turbo-drills | HB | CC | 2D129 | |
|
|
.Turbo-drill bearing devices | HB | CC | 2D129 | |
|
|
Others | HB | CC | 2D129 | |
|
|
.Electric drives (E21B 4/12 takes precedence) [3] | HB | CC | 2D129 | |
|
|
.Down-hole impacting means, e.g. hammers (boring rams E21B 11/02)[2006.01] | HB | CC | 2D129 | |
|
|
..impact being obtained by gravity only, e.g. with lost-motion connection [3] | HB | CC | 2D129 | |
|
|
..continuous unidirectional rotary motion of shaft or drilling pipe effecting consecutive impacts [3] | HB | CC | 2D129 | |
|
|
..Electrically operated hammers [3] | HB | CC | 2D129 | |
|
|
..Fluid operated hammers [3] | HB | CC | 2D129 | |
|
|
by liquid pressures | HB | CC | 2D129 | |
|
|
by pneumatic pressures | HB | CC | 2D129 | |
|
|
Others | HB | CC | 2D129 | |
|
|
.Plural down-hole drives, e.g. for combined percussion and rotary drilling (E21B 4/10 takes precedence); Drives for multi-bit drilling units [3] | HB | CC | 2D129 | |
|
|
.Anchoring or feeding in the borehole [3,7] | HB | CC | 2D129 | |
|
|
.combined with surface drive (E21B 4/10 takes precedence) [3] | HB | CC | 2D129 | |