Stop device for well conduit

Details Stop device for well conduit Stop device for well conduit

1983-10-31

1985-07-23

Novosad, Stephen J.

Wells

Brushing, scraping, cutting or punching-type cleaners

On tubing or casing

166175, E21B 3700

Patent

active

045303991

ABSTRACT:
The invention provides a stop device for installation on a well conduit. The stop device is fabricated from semi-annular elements having one ends thereof pivotally interconnected by a hook and notch connection and the other ends stamped to provide apertured lugs traversed by a clamping device. The effective diameter of the stop is increased by a plurality of peripherally spaced, outwardly projecting notches formed in the top and bottom edges of the semi-annular elements.

REFERENCES:
patent: 519312 (1894-05-01), Arthur
patent: 2787039 (1957-04-01), Krasberg
patent: 4422504 (1983-12-01), Moore
patent: 4442154 (1984-04-01), Fortsch et al.

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