Tool for fishing an object from a bore hole

Details Tool for fishing an object from a bore hole Tool for fishing an object from a bore hole

1977-07-11

1978-07-18

Leppink, James A.

Handling: hand and hoist-line implements

Grapple

Well type

166240, E21B 3102

Patent

active

041011570

ABSTRACT:
A tool is disclosed which fishes an object from a bore hole. The tool uses a tubular body having an upper and lower end, fingers are mounted within the body for moving between an opened position and a closed position and a spring is mounted within the body to use the fingers toward the lower end of the body. The movement of the fingers between the opened and closed positions is controlled by a camming mechanism slidably mounted within the body, which uses a sleeve forming a cam face defining a recycling "J" slot grooves and a pin extending from the body into the groove to cause the sleeve to rotate. Lugs are mounted with the sleeve for nesting within slots formed in the body to limit movement of the pin within the stems of the "J" slotted grooves.

REFERENCES:
patent: 1816207 (1931-07-01), Borgo et al.
patent: 2070869 (1937-02-01), Sorensen
patent: 2250440 (1941-07-01), Shannon
patent: 2687323 (1954-08-01), Stohn
patent: 3420305 (1969-01-01), Alexander et al.
patent: 3912009 (1975-10-01), Davis, Jr.

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