发明名称 |
Flat roof auxiliary drain system |
摘要 |
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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申请公布号 |
US4248258(A) |
申请公布日期 |
1981.02.03 |
申请号 |
US19790047360 |
申请日期 |
1979.06.11 |
申请人 |
DEVITT, GERALD J.;RITTER, RICHARD A. |
发明人 |
DEVITT, GERALD J.;RITTER, RICHARD A. |
分类号 |
E04D13/04;H01L31/02;(IPC1-7):F04F10/00 |
主分类号 |
E04D13/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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