Rod coupling breakout device

Details Rod coupling breakout device Rod coupling breakout device

1993-04-26

1994-11-08

Schoeppel, Roger J.

Wells

Above ground apparatus

With means facilitating connecting or disconnecting...

166 85, E21B 1916

Patent

active

053618319

ABSTRACT:
Well pump rods and similar threadedly interconnected rod members are loosened from their couplings by a device which includes two opposed housing members which are hinged together and support impact blow transmitting members thereon. A latch mechanism including an over-center or toggle linkage is operable to secure the housing in a closed position encircling a tubular rod coupling with the spaced apart and opposed impact transmitting members adapted to receive impact blows and transmit same to the coupling to loosen the threaded connections between the coupling and the rods. The housing provides a suitable support for transmitting impact blows to the coupling and for retaining the coupling in the event of catastrophic fracture of the coupling.

REFERENCES:
patent: 1861728 (1932-06-01), Vance et al.
patent: 2217238 (1940-10-01), Sisson
patent: 2295720 (1942-09-01), Dietzmann et al.
patent: 4295526 (1981-10-01), Hauk et al.
patent: 4458562 (1984-07-01), Jackson
patent: 4483564 (1984-11-01), McDaniel
patent: 5010635 (1991-04-01), Clark

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