Underground water storage tank

Details Underground water storage tank Underground water storage tank

2005-05-19

2011-10-04

Rivell, John (Department: 3753)

Fluid handling

Distribution systems involving geographic features

C137S576000, C405S045000, C220S567100

Reexamination Certificate

active

08028713

ABSTRACT:
An underground water storage tank which rarely causes water leakage, and which largely increases an amount of water to be stored therein having an internal water storage sub-tank11provided by coating an assembly of water-bearing materials12obtained by combining multiple water-bearing materials12with one another with a first water-impermeable sheet14; soil pressure absorption plates26provided outside the internal water storage sub-tank11; and a second water-impermeable sheet27for coating the soil pressure absorption plates26. The water-bearing materials are rigid pipes12made of resin and the assembly of the water-bearing materials is formed by mutually and parallel coupling the multiple rigid pipes12by pipe coupling means13in a state that the multiple rigid pipes12are vertically set and arranged at predetermined intervals therebetween in a horizontal direction.

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patent: 5624204 (1997-04-01), Dorsemaine
patent: 6382237 (2002-05-01), Takai
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patent: 2001-107403 (2001-04-01), None
patent: 2002-115280 (2002-04-01), None

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