Hydraulic and earth engineering – Drainage or irrigation
Reexamination Certificate
2004-09-22
2008-03-11
Kreck, John (Department: 3673)
Hydraulic and earth engineering
Drainage or irrigation
C404S002000
Reexamination Certificate
active
07341400
ABSTRACT:
A water storage cell (2) is positioned underneath a pavement (4). An upper boundary of the cell (2) is formed by a surface (6) or wearing course of the pavement (4). The remaining boundary of the cell is defined by a water-retaining layer (8) that may pen-nit infiltration of water into the surrounding ground. Means for enhancing the evaporation rate of the water in the cell are provided. As shown a ventilated pathway (20) extends between a vent (22) and a flue (24) and is surrounded by means such as a liner, suspended dished panels, absorbent mats (32) or particulate material with surface absorbency characteristics to detain water in contact with the airflow in the pathway (20). The cell (2) can be used in a SUDS system without an outfall with both permeable and impermeable pavements.
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patent: 298 23 806 (1999-12-01), None
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Pratt, CJ; “Sustainable Urban Drainage Systems Symposium—Part 2: The Difficulties and the Opportunities,” The Chartered Institution of Water and Environmental Management, West Midlands Branch; Midlands Engineering Centre, Austin Court, Birmingham, Jan. 31, 2001.
International Preliminary Report on Patentability of the International Bureau of the PCT for International Application No. PCT/GB2004/004115, dated Apr. 20, 2006.
English Translation of German Patent: DE 298 23 806 U1 (Previously submitted as citation B1 on Mar. 7, 2006.).
Kirkpatrick & Lockhart Preston Gates & Ellis LLP
Kreck John
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