Fishing tool for retrieving implements from a hole

Details Fishing tool for retrieving implements from a hole Fishing tool for retrieving implements from a hole

1990-07-10

1991-10-08

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Well type

294 8617, 2941022, E21B 3118

Patent

active

050548328

ABSTRACT:
A fishing tool for retrieving broken or lost implements from a drilled hole includes a one-piece body having a bore extending from one end to the other. Oppositely positioned and inwardly directed male keys extend from the inner surface of the bore. The male keys extend along a substantial portion of the length of the bore and engage oppositely positioned portions of a catch slip. The catch slip is slidable along the length of the bore and is guided by the male keys and supported by the inner surface of the bore. The lower end of the body may be provided with a removable guide bushing and a removable guide for retaining the guide bushing in place at the lower end of the body. A front face of the catch slip may be provided with a buttress thread for firmly grasping the implement being retrieved and for permitting the grasped implement to be released while it is still in the hole through rotation of the tool.

REFERENCES:
patent: 529781 (1894-11-01), Craelius
patent: 885478 (1908-04-01), Hollingsworth
patent: 1491463 (1924-04-01), Clulow
patent: 1581010 (1926-04-01), Murray
patent: 1616024 (1927-02-01), Brust
patent: 1720692 (1929-07-01), Reynolds et al.
patent: 1732962 (1929-10-01), Brust
patent: 1778968 (1930-10-01), Towne
patent: 2067009 (1937-01-01), Hinderliter
patent: 2201434 (1940-05-01), Gallagher
patent: 2275911 (1942-03-01), Le Bus
patent: 2492813 (1949-12-01), Osman
patent: 2595008 (1952-04-01), Sill
patent: 2970859 (1961-02-01), Justice
patent: 4157199 (1979-06-01), Klingman

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