Remotely operated elevator and method

An elevator apparatus and method. The apparatus includes a circular member comprising a first and second semi-circular half and a hinge pin(s) for pivoting the first and second semi-circular half together. The elevator apparatus further includes a hinge rotary actuator(s) for activating the hinge pi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	DUGAL ROBERT, CHILDRESS LAWRENCE E.II
Format:	Patent
Sprache:	eng
Schlagworte:	CRANES EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HAULING HOISTING LIFTING LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS TRANSPORTING
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