Hydraulic and earth engineering – Foundation
Patent
1995-09-14
1997-07-01
Neuder, William P.
Hydraulic and earth engineering
Foundation
521695, F02B 1100
Patent
active
056429673
ABSTRACT:
Method of reducing moisture damage to a building having a foundation crawl space with a floor that includes excavating a pit in the floor and positioning a plastic liner in the pit. This plastic liner defines a cavity and an inlet intersecting the cavity which is configured to collect water. A space exists between the liner and the pit. A trench is formed in a portion of the floor and configured to intersect the pit. A drain tile is put in the trench which has an outlet engaging the inlet of the liner. A pneumatic conveyor system is positioned outside the crawl space which has an intake and a dispensing outlet. An aggregate source is provided outside the crawl space adjacent the intake, and the aggregate generally does not exceed the size of pea gravel. A flexible hose is connected to the dispensing outlet which has a discharge outlet selectively positioned within the crawl space. Aggregate is drawn by suction into the intake and then discharged through the discharge outlet by pressurized air at a rate of at least three tons per hour. Aggregate is deposited on the floor of the crawl space including the trench and space surrounding the liner. A moisture barrier is placed on top of the floor and aggregate to reduce exposure of the building to moisture from the crawl space. A pump system is installed for pumping water out of the pit.
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Key Greg B.
Swain Kenneth L.
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