Tubular actuator component for use in a drill string

Details Tubular actuator component for use in a drill string Tubular actuator component for use in a drill string

1998-04-28

2000-03-28

Bagnell, David

Boring or penetrating the earth

With below-ground tool drive prime mover

With positive connection between tool and support shaft for...

175267, 175320, 192 481, E21B 2304, E21B 1710

Patent

active

060418745

ABSTRACT:
A tubular actuator component (20) for use in a drill-string is disclosed and which comprises a main tubular outer body (6) within which a clutch mechanism, mandrel (2), and pad mandrel (7) are located. The clutch mechanism comprises a lower stationay clutch component (4), secured upper clutch component (12) and an intermediate clutch component (1) such that application of fluid aetuating pressure to the interior of the tubular component axially displaces intermediate clutch member (1) between positions of co-operative engagement with one or the other of the lower stationary clutch component (4) and the secured upper clutch component (12).

REFERENCES:
patent: 2167019 (1939-10-01), Yost
patent: 4276944 (1981-07-01), Geczy

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