Valve for insertion in a pressurized fluid flow line
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United States of America Patent
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May 31, 1994
Grant Date -
N/A
app pub date -
Aug 30, 1993
filing date -
Aug 30, 1993
priority date (Note) -
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Abstract
A valve adapted for insertion in a pressurized fluid flow line for blocking and sealing the flow of fluid through the line without disconnecting the line and to maintain the pressure in the upstream end of the line. The valve includes two body portions which may be clamped on the fluid flow line to form a valve body in which is adjustably mounted a shaft carrying an annular hole cutter and a tubular seal. The shaft is rotatable for driving the annular hole cutter through the line and to position the tubular seal in the hole cut through the line to block and seal flow through the downstream portion of the line.
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