Tool driving or impacting – Advance causing or controlling means – Tool advances relative to drive
Patent
1979-07-02
1981-05-26
Feidbaum, Ronald
Tool driving or impacting
Advance causing or controlling means
Tool advances relative to drive
24263DT, B23Q 5027, B23Q 5033
Patent
active
042692776
ABSTRACT:
Disclosed are apparatus for gripping and manipulating pipe members, including a plurality of slip carriers mounted on an equal number of carrier actuators. The carrier actuators are arranged within a drive sleeve and constrained by radial T-slot connections to a base ring. Sloped T-slot connections link each of the carrier actuators to the drive sleeve. Longitudinal movement of the drive sleeve in one sense propels the carrier actuators and the slip carriers radially inwardly whereby slips mounted on the slip carriers may grip a pipe member positioned within the drive sleeve; longitudinal movement of the drive sleeve in the opposite sense withdraws the carrier actuators and slip carriers from the pipe member. Cooperating wedging surfaces between each of the slip carriers and the corresponding carrier actuator permits the application of holding or moving force on pipe members in either longitudinal sense. The base ring may be rotated by means of a chain drive mechanism to thereby apply torque to pipe members by way of the slips.
REFERENCES:
patent: 3096075 (1963-07-01), Brown
patent: 3722603 (1973-03-01), Brown
patent: 3742563 (1973-07-01), Brown
patent: 3748702 (1973-07-01), Brown
patent: 3760469 (1973-09-01), Brown
patent: 3776320 (1973-12-01), Brown
patent: 3915244 (1975-10-01), Brown
patent: 3964552 (1976-06-01), Slator
Brown Oil Tools, Inc.
Feidbaum Ronald
Felsman Robert A.
Zamecki E. Richard
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