Underground storage tank
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Sep 30, 2004
app pub date -
Apr 12, 2004
filing date -
Jan 23, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An underground storage tank includes a shell provided with an outer wall which is molded to include a plurality of longitudinally spaced, opposed pairs of receiving pockets which extend inwardly from the outer surface of the outer wall. Internal reinforcements may be provided either as tubular members mounted within the shell on reinforcement mounts molded into the pockets, or as tubes molded into the shell. The reinforcements are positioned within the chamber of the tank and resist deformation by maintaining the opposed pairs of pockets in spaced-apart relationship. Stabilization lugs are molded into the shell at corners adjacent each of the longitudinally spaced generally dome-shaped ends. A manway has an upwardly extending collar for receiving a cover thereon, and a circumscribing trough for isolating the collar against deformation.
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