Tee connection to a pipeline
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United States of America Patent
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-
Jan 31, 2006
Grant Date -
Dec 2, 2004
app pub date -
Sep 2, 2002
filing date -
Oct 5, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A method for securing a branch assembly to a pipeline includes positioning a first containment ring surrounding an area from which the branch is to extend, positioning a first annular seal within the containment ring to provide a first ring/seal arrangement, positioning a second containment ring spaced from the first containment ring and first annular seal, positioning a second annular seal within the second containment ring to provide a second ring/seal arrangement, positioning the second part of the branch assembly onto the seals, and positioning a first part of the assembly on the pipe line and securing the first and second parts together so as to leave an annular gap between the first and second ring/seal arrangements and to provide an access point or vent in the second part communicating with the annular gap.
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