Transfer pad system

Details Transfer pad system Transfer pad system

1994-09-28

1996-05-07

Tsay, Frank S.

Hydraulic and earth engineering

Fluid control, treatment, or containment

405128, E02B 1300, B09B 100

Patent

active

055139280

ABSTRACT:
A transfer pad in which a central sump is covered with a liquid-impervious membrane. A layer of gravel is then added on top of the membrane. To facilitate monitoring and draining of the pad, a network of perforated pipes is installed within the gravel layer to receive liquids that have filtered through the layer. The gravel layer is then partially covered with concrete, onto which a truck may drive. The layer of gravel may be further covered with a permeable buffer on top of which is added a second layer of gravel. The concrete would then be placed on top of the second layer of gravel. Materials spilled onto the concrete portions of the slab or the gravel are percolated through the gravel layers and collected within the perforated pipes.

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patent: 4190761 (1980-02-01), Colten
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patent: 5080528 (1992-01-01), Ressi di Cervio
patent: 5190406 (1993-03-01), Shannonhouse et al.
patent: 5362182 (1994-11-01), Hergenrother

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