Automatic pipe elevator

Patent · Tue Mar 17 00:00:00 EST 1987

OSTI ID:6632226

Haney, K M; Willis, C A

This patent describes an elevator adapted for use with a power swivel for supporting a drilling or production tubular, the elevator comprising: at least two jaws, each jaw having a clamping surface; a connector member for supporting the jaws, the connector member comprising an upper end, a lower end, means for coupling the upper end to the power swivel, means for coupling the lower end to a tubular. The member also comprises means for defining a passageway extending from the upper end to the lower end through the connector member to allow drilling mud to be passed from the power swivel through the bore, into the tubular; and linkage means mounted between the connector member and the jaws for coupling the jaws to the connector member and for maintaining the clamping surfaces of the jaws in clamping engagement with the tubular when the connector member and the tubular are urged apart relative to one another. The linkage means is configured such that the force by which the clamping surfaces clamp the tubular increases as the force urging the connector member and the tubular apart increases.

• Assignee: W-N Apache Corp., Wichita Falls, TX
• Patent Number(s): US 4650236
• OSTI ID: 6632226
• Resource Relation: Patent File Date: Filed date 15 Mar 1985
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
DRILL PIPES
HOISTING
NATURAL GAS WELLS
HOISTS
OIL WELLS
CONNECTORS
FASTENERS
FASTENING
PRODUCTION
SUPPORTS
WELL DRILLING
CONDUCTOR DEVICES
DRILLING
DRILLING EQUIPMENT
ELECTRICAL EQUIPMENT
EQUIPMENT
FABRICATION
JOINING
MATERIALS HANDLING
MATERIALS HANDLING EQUIPMENT
MECHANICAL STRUCTURES
PIPES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing