Flat roof auxiliary drain system
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United States of America Patent
Stats
-
Feb 3, 1981
Grant Date -
N/A
app pub date -
Jun 11, 1979
filing date -
Jun 11, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flat roof solar powered auxiliary drain system having master and satellite modules with respective drain lines and electric pumps for charging the drain lines for syphoning standing water from a flat roof, the master module having a battery and a solar cell for charging the battery for supplying power for operating the electric pumps and a control circuit for selectively energizing the electric pumps for removing standing water.
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Cited Art Landscape
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