Wide area water collection type underground water tank
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United States of America Patent
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-
May 7, 2002
Grant Date -
N/A
app pub date -
Apr 26, 2001
filing date -
Oct 26, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A wide area water collection type underground water tank compresses: a water tank (11) constituted to be capable of reserving water therein, the water tank (11) being buried underground and having draining structure (14) capable of drawing out the water within the water tank (11) from the aboveground position; an intake pipe (21) having one end communicated with the interior of the water tank (11) from the side portion or upper portion of the water tank (11), and the other end opened into the underground around the water tank (11); a check valve (31) mounted to the intake pipe (21). A water impermeable sheet (19) is buried underground and upwardly and outwardly inclined from the side or bottom of the water tank.
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