Pipe collapsing attachment
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United States of America Patent
Stats
-
Jan 26, 1993
Grant Date -
N/A
app pub date -
Apr 12, 1991
filing date -
Apr 12, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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