Static structures (e.g. – buildings) – Specified terranean relationship – With drain or vent exterior to foundation perimeter
Patent
1989-02-07
1990-03-13
Corbin, David H.
Static structures (e.g., buildings)
Specified terranean relationship
With drain or vent exterior to foundation perimeter
405 45, 405 50, E02D 3102
Patent
active
049073850
ABSTRACT:
A drainage apparatus is utilized in combination with a hollow core concrete block having a notch extending through one longitudinal wall thereof, to allow water to escape the hollow core. In the preferred embodiment of the invention, a fabric pocket is held upright within the hollow core by a wire frame. The lower end of the wire frame is bent into a J-shape so as to clip onto the concrete block at the notch in the block. The fabric is of a type which will absorb water and permit a high water flow rate, so as to drain water from the surrounding material downwardly through the fabric and out the notch. A second embodiment of the invention utilizes a hollow tubular frame within a fabric pocket. The tubular frame has a plurality of slots cut therein to allow water to seep into the tube and be drained out through the notch in the concrete block. A third embodiment of the invention includes a hollow core concrete block having a notch in its lower edge to drain water from the hollow core, and a channel extending vertically upward from the notch in the core of the block. A fabric is bonded to the concrete block wall over the channel to draw water down the fabric within the channel and thereby drain the liquid through the notch in the concrete block.
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