SECONDARY CONTAINED CSST PIPE AND FITTING ASSEMBLY
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United States of America Patent
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Issued Date -
Mar 1, 2012
app pub date -
Aug 22, 2006
filing date -
Aug 22, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A double wall pipe assembly includes an inner primary pipe (4) and an outer secondary pipe (5), as well as a novel fitting assembly (3) for terminating the double wall pipe assembly. The primary pipe is a flexible annularly corrugated pipe made from stainless steel which is flexible and nearly impermeable to fuels. The fitting assembly provides an integrated seal of the secondary pipe to a fastener (8) used to seal the primary pipe to fitting body. The fitting assembly may also maintain communication between an interstitial space between the primary and secondary pipes and an access port (182) in the fastener. The access port can be used for monitoring of the interstitial space between the primary and secondary pipe.
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