Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway
Patent
1997-12-23
1999-06-15
Graysay, Tamara
Hydraulic and earth engineering
Drainage or irrigation
Porous or apertured pipe, flume, or tileway
405 45, 521691, 521695, E02B 1100
Patent
active
059115408
ABSTRACT:
The subterranean liquid distribution or liquid routing apparatus utilizing a housing having a wall portion forming an inner chamber. The housing includes inner and outer surfaces, the former defining the inner chamber of the housing. A plurality of apertures in the wall portion of the housing permit communication with the inner chamber and allow liquids to pass either into or out of the inner chamber. At least a pair of protuberances extend from the inner surface of the wall portion of the housing in contact one another to prevent collapsing of the housing chamber. An opening is also found to the housing chamber in spaced relationship to the plurality of apertures which generally serves as the drainage or source of the liquid being distributed by the apparatus.
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Bielen, Jr. Theodore J.
Graysay Tamara
Lee Jong-Suk
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