Hydraulic and earth engineering – Drainage or irrigation – Control means responsive to sensed condition
Patent
1992-04-08
1994-09-27
Reese, Randolph A.
Hydraulic and earth engineering
Drainage or irrigation
Control means responsive to sensed condition
405 51, 405 36, E02B 1100
Patent
active
053502515
ABSTRACT:
A system is provided for controlling the moisture content of a planted surface. The system includes a plurality of drain conduits located beneath the planted surface for collecting liquid from the planted surface. The system also includes a sealed collection tank coupled to the plurality of drain conduits. The collection tank is located beneath the planted surface to collect liquid passing through the plurality of drain conduits. The system also includes a vacuum pump coupled to the collection tank for removing air from the collection tank to provide a suction force in the collection tank and in the plurality of drain conduits to draw liquid from the planted surface through the plurality of drain conduits and into the collection tank. An elevated air tank is coupled between the vacuum pump and the collection tank. The elevated air tank is located at a remote location spaced apart from the collection tank. The vacuum pumps remove air from the air tank which causes the suction force on the air tank, in the collecting tank, and in the plurality of drain conduits. Soil mosture sensors automatically operate programs for favorable turf growth and playing conditions.
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McBee J. Russell
Purdue Research Foundation
Reese Randolph A.
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