Hydraulic and earth engineering – Drainage or irrigation – Control means responsive to sensed condition
Patent
1997-08-11
1999-08-31
Bagnell, David J.
Hydraulic and earth engineering
Drainage or irrigation
Control means responsive to sensed condition
405 36, 405130, 405131, 137 782, 137561R, F02B 1100, F16K 1736
Patent
active
059444444
ABSTRACT:
A control system for an athletic field coordinates drainage by gravity or vacuum-enhanced and irrigation by monitoring water level with respect to a subsurface membrane, wherein a flow network resides on the membrane and is covered by a fill layer, which in turn supports the field surface thereabove. The flow network includes couplings located at the intersections of some of the pipe rows and conduit rows. The water permeability of the conduit rows allows the flow network to be used for draining, irrigating or heating the field. The heating of the fill layer and the surface thereabove minimizes energy costs and eliminates installation and maintenance costs that would otherwise be necessitated by separate heating and draining systems.
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Ferry Brian L.
Goddard James B.
Heinlein Mark A.
Motz Joseph E.
Reese Craig
Advanced Drainage Systems, Inc.
Bagnell David J.
Lee Jong-Suk
Murray Equipment
Technology Licensing Corp.
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