On and off fishing tool

Details On and off fishing tool On and off fishing tool

1989-12-26

1992-09-22

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Well type

294 8632, 294 8633, E21B 3118

Patent

active

051491630

ABSTRACT:
A fishing tool for composite sucker rod has a four fingered collet. An overshot tube is connected to the top of the fishing tool. The top of the collet has a stack telescoped within a helical spring. A fish deep within a well has a splintered partial joint of composite rod above a metal coupling having a four faced wrench flat. In operation, the splintered joint is telescoped within the overshot and the four fingers engage the four faced wrench flat. The tool is disengaged by rotating the tool 1/8 of a turn to bring the collet fingers over the corners between the flat faces of the wrench flat.

REFERENCES:
patent: 1797505 (1931-03-01), Jones et al.
patent: 1869861 (1932-08-01), O'Bannon
patent: 2232949 (1941-02-01), Jones et al.
patent: 2250440 (1941-07-01), Shannon
patent: 2753208 (1956-07-01), Le Bus
patent: 3549187 (1970-12-01), Harbison
patent: 3727967 (1973-04-01), Anastasiu et al.

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