Power tong

Details Power tong Power tong

1976-04-29

1977-11-29

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Machine

B25B 1700

Patent

active

040600149

ABSTRACT:
An open head power tong for use in making-up and breaking-out joints of varying diameter such as drill pipe joints which provides for bi-directional operation with the tong housing remaining in the same position.

REFERENCES:
patent: 1811666 (1931-06-01), Foster
patent: 2668689 (1954-02-01), Cormany
patent: 3025733 (1962-03-01), Soodnizin
patent: 3180186 (1965-04-01), Catland
patent: 3518903 (1970-07-01), Hain et al.
patent: 3610640 (1971-10-01), Bollin
patent: 3776320 (1973-12-01), Brown

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