Well production signal means

A well pumping unit which employs a walking beam carried on a saddle bearing which in turn is supported by a sampson post wherein a signal means which produces a signal on movement of a member of the signal means is connected to at least one of the walking beam, saddle bearing, and the main shaft of...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	STEVENS, GERALD L, DUKE, SPENCER E
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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