Hydraulic and earth engineering – Drainage or irrigation – Control means responsive to sensed condition
Patent
1988-03-28
1989-11-21
Corbin, David H.
Hydraulic and earth engineering
Drainage or irrigation
Control means responsive to sensed condition
405 38, 405 50, A01G 2500, E02B 1100
Patent
active
048818461
ABSTRACT:
The disclosure relates to a built-up playing court structure having a stable moisture content controlled surface layer with playing qualities equivalent to conventional clay courts. The playing court structure comprises a built-up court surface layer, a barrier surface which is substantially impervious to moisture, a containment wall, a subsurface bed of aggregate, and means for controlling the moisture content of the court surface. A subsurface moisturizing and drainage system provides a horizontal playing surface, highly resistant to any washing away of surface materials. Controlling surface moisture also provides a consistent playing surface with no loss of surface materials due to wind.
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Tennis Courts 1984-1985, published for the United States Tennis Association, p. 31 (1984).
Burkstaller Herman F.
Corbin David H.
Peacock Deborah A.
Weig Robert W.
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