Pipe spinner

Details Pipe spinner Pipe spinner

1978-12-08

1980-09-09

Feldbaum, Ronald

Tool driving or impacting

Means to drive tool about an axis

Means to hold and relatively rotate sections of tool shaft

81 572, E21B 300

Patent

active

042212693

ABSTRACT:
A pipe spinner for spinning drill pipe as used to dig deep wells includes a yoke with a torque arm. Three self-contained rotary hydraulic motors having urethane coated rollers on the exterior thereof are mounted upon the spinner, one in the central area of the yoke and one each on a swing arm pivoted to the end of the legs on the yoke. Hydraulic fluid for the three motors is supplied and removed axially thereof. The hydraulic fluid conduits are made flexible at the pivots.

REFERENCES:
patent: 2746329 (1956-05-01), Paget
patent: 2928301 (1960-03-01), Beeman et al.
patent: 2985455 (1961-05-01), Powell
patent: 3122211 (1964-02-01), Wilson et al.
patent: 3390726 (1968-07-01), Bartog
patent: 4099429 (1978-07-01), Hauk

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