Pipe spinner

Details Pipe spinner Pipe spinner

1984-01-20

1985-04-23

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Machine

B25B 1700

Patent

active

045122164

ABSTRACT:
A motor driven serpentine chain circulating device for spinning drill pipe into engagement for final tightening by other devices. Jaws are closed and locked to position chain for embracing pipe before the chain tension is applied. Chain tension does not depend upon exact positioning of the jaw closure. Optional sequencing system speeds operation.

REFERENCES:
patent: 4099429 (1978-07-01), Hauk
patent: 4471674 (1984-09-01), Doss

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