发明名称 |
Automated irrigation system |
摘要 |
In a center pivot irrigation system, comprising a hollow tube advanced on a wheeled carriage around a pivot and including a plurality of spray heads thereon, the improvement comprising a telescopically received extension deployable from the end of the pivoting tube at the corners of a rectangular plot. A stepping switch, fixed to the pivot, provides the requisite deployment signals at predetermined angular positions, releasing the extension and turning the wheels on a sliding support frame for advancement or retraction. The signals from the stepping switch are furthermore combined with a plurality of status signals to indicate a failure.
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申请公布号 |
US4033508(A) |
申请公布日期 |
1977.07.05 |
申请号 |
US19760686104 |
申请日期 |
1976.05.13 |
申请人 |
JACOBI, EDGAR F.;MADDEN, MARK R. |
发明人 |
JACOBI, EDGAR F.;MADDEN, MARK R. |
分类号 |
A01G25/09;(IPC1-7):B05B3/12 |
主分类号 |
A01G25/09 |
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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