Integrated retaining ring and bushing

A piston-actuated drilling tool includes a housing, a top joint, a piston, and a drive joint; a piston having a nose at the front end thereof, the nose being slidably mounted for reciprocating movement within the housing and striking a spindle located at the front end of the housing; wherein there i...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	PRANA ANTHONY, BRECKENFELD TED
Format:	Patent
Sprache:	chi ; 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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