Double wall storage tank having an outer jacket bonded around an aperture
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United States of America Patent
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Jun 29, 1999
Issued Date -
N/A
app pub date -
Feb 5, 1997
filing date -
Oct 23, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A multiple wall tank for the storage of liquids is manufactured from a rigid inner tank having at least one aperture by applying a layer of a synthetic resin material to the inner tank exterior surface around the aperture, providing a spacing means to provide for substantially free passage of liquids along at least a portion of the inner tank, applying over the layer of synthetic resin and the inner tank an outer sheath of a thermoplastic synthetic resin material, and bonding the outer sheath to the resin material layer surrounding and proximal to the aperture to form a substantially liquid-impervious seal around the aperture.
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