Drain sealing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Feb 16, 2006
app pub date -
May 28, 2004
filing date -
May 30, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Plastic liner sections (2) define a drainage channel when placed end to end. Each end (6,8) has a stiff, double walled flange (34) at each side of the end adapted to butt up to a similar flange (34) at the adjacent end of the next sections (2). The double walled construction of the flanges (34) stiffens the ends (6,8) significantly reducing the risk of deformation by the hydrostatic forces produced by wet concrete during installation. A groove (24) is formed inwardly of the flanges (34) on a female end (6) of the liner section (2) and receives a sealing ring (52), which is held in place by a lip (26) formed on a male end (8).
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Cited Art Landscape
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