Pipe collapsing attachment

Details Pipe collapsing attachment Pipe collapsing attachment

1991-04-12

1993-01-26

Crane, Daniel C.

Metal deforming

By tool-couple embodying nonplanar tool-face

Similar tool-faces

72407, 7245302, 7245315, 2989014, 29727, 251 7, B21D 706

Patent

active

051814137

ABSTRACT:
An apparatus for collapsing and crushing heavy-duty steel well casings and similar pipes to terminate flow of liquids such as crude oil therethrough, a housing portion gripping and sealing spaced portions of the casing, casing collapsing rams at opposite sides of the casing and between said portions of the housing and confined within portions of the housing; and a pair of hydraulic cylinders driving the rams inwardly against the casing to collapse it and crush it to reduce and substantially prevent flow of liquid or crude oil through the casing.

REFERENCES:
patent: 1497398 (1924-06-01), Axelson
patent: 2182663 (1939-12-01), Eby
patent: 3086797 (1963-04-01), Webb
patent: 3252474 (1966-05-01), Ehrens
patent: 3419008 (1968-12-01), Plishner
patent: 3511469 (1970-05-01), Bell
patent: 3822456 (1974-07-01), Petruzzi
patent: 3937050 (1976-02-01), Nicholson
patent: 4231246 (1980-11-01), Gorenc
patent: 5007280 (1991-04-01), Quinn

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