Drain sealing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 14, 2006
Issued Date -
N/A
app pub date -
Oct 8, 2004
filing date -
May 30, 2003
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Plastic liner sections define a drainage channel when placed end to end. Each end has a stiff, double walled flange at each side of the end adapted to butt up to a similar flange at the adjacent end of the next sections. The double walled construction of the flanges stiffens the ends significantly reducing the risk of deformation by the hydrostatic forces produced by wet concrete during installation. A groove is formed inwardly of the flanges on a female end of the liner section and receives a sealing ring, which is held in place by a lip formed on a male end.
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Cited Art Landscape
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