发明名称 EXTENDED RANGE SINGLE-JOINT ELEVATOR
摘要 An oilfield elevator is disclosed and has first and second body halves pivotally-coupled at a hinge and moveable between an open position and a closed position to receive and move a tubular segment. Slips are slidably received within corresponding tapered slots in the elevator and are configured to translate vertically within the tapered slots and, at the same time, radially so as to be able to capture a wider range of tubular having varied outside diameters. Tension handles are pivotally-coupled to the first and second body halves and moveable between locked and unlocked positions. Locking the tension handles engages the slips via biasing members, and forces the slips into radial contact with the tubular segment. Unlocking the tension handles releases the biasing members.
申请公布号 CA2834880(A1) 申请公布日期 2012.11.08
申请号 CA20122834880 申请日期 2012.04.30
申请人 FRANK'S CASING CREW AND RENTAL TOOLS, INC. 发明人 ANGELLE, JEREMY RICHARD;STELLY, JOHN ERICK;HOLLIER, TYLER J.
分类号 E21B19/06;E21B19/07;E21B19/10;E21B19/16 主分类号 E21B19/06
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