Jaws for power tongs and back-up units

Details Jaws for power tongs and back-up units Jaws for power tongs and back-up units

1987-07-16

1989-06-06

Meislin, Debra

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5715, B25B 1700

Patent

active

048360643

ABSTRACT:
An improvement is made to jaw designs for power tongs and back-up units. The jaw is formed having a cavity whose opening is oriented toward the pipe to be gripped. An elongated die is movably mounted in the cavity effectively closing off the cavity. The die has a gripping surface adapted to contact the pipe. A resilient member, preferably synthetic rubber or other elastomer or a substantially incompressible fluid, is disposed within the cavity adjacent the die. Uneven loads on the die are redistributed through the hydraulic action of the resilient member with a resultant equal distribution of the loads on the die.

REFERENCES:
patent: Re31699 (1984-10-01), Eckel
patent: Re31993 (1985-10-01), Wesch, Jr.
patent: 1811666 (1929-12-01), Foster
patent: 2668689 (1954-02-01), Cormany
patent: 3589742 (1971-06-01), Flick
patent: 3599960 (1971-08-01), Phillips
patent: 3776320 (1973-12-01), Brown
patent: 3858468 (1975-01-01), Pasbrig
patent: 4077250 (1978-03-01), Wesch
patent: 4084453 (1978-04-01), Eckel
patent: 4089240 (1978-05-01), Eckel
patent: 4215602 (1980-08-01), Carstensen
patent: 4250773 (1981-02-01), Haynes et al.
patent: 4276771 (1981-07-01), Wesch, Jr.
patent: 4281535 (1981-08-01), Wesch, Jr.
patent: 4334444 (1982-06-01), Carstensen
patent: 4350062 (1982-09-01), Farr
patent: 4372026 (1983-02-01), Mosing
patent: 4401000 (1983-08-01), Kinzbach
patent: 4593584 (1986-06-01), Neves
patent: 4649777 (1987-03-01), Buck
patent: 4709599 (1987-12-01), Buck

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