Actuator assembly

An oil or gas well actuator assembly 1 comprising: a fixed member 10 having an axis; an actuating member 30 being moveable axially with respect to the fixed member; a plurality of open-ended recesses on one of the fixed member and the actuating member wherein each recess at least partially houses a...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	Jason Duthie
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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