Roadway surface grating with trash detention during drier conditions
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United States of America Patent
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-
Apr 27, 2004
Grant Date -
Apr 8, 2004
app pub date -
Oct 8, 2002
filing date -
Oct 8, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A roadway surface drain provided with a grating to detain trash but pass water, a hinged closure plate beneath the grating to close the opening in which the grating is fitted, and linkage to tilt the closure plate to open said opening when the rate of water flow is sufficient, while permitting flow of water and detaining trash when the rate of flow is acceptably slow.
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Cited Art Landscape
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