Method for installation of an extended header
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United States of America Patent
Stats
-
Apr 16, 1985
Issued Date -
N/A
app pub date -
Feb 21, 1984
filing date -
May 6, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A header or other pipe under pressure which is blanked at its terminal end by a closure plate is extended without the need of a shutdown or the construction of bypass piping. In a series of steps in the method disclosed, alternate bolts in the ring of bolts holding the closure plate to the annular flange of the existing pipe are variously repositioned or replaced to accommodate the construction of the extension while maintaining an adequate seal to prevent the escape of the pressurized fluid in the pipe. A structure which is installed as a product of this method and an apparatus used in this installation are also disclosed.
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Cited Art Landscape
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