Wind correction method and apparatus for irrigation systems
US4128205A · kind A · utility
10Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1977 |
| Grant date | Dec 5, 1978 |
| Priority date | — |
| Expiry date | Apr 7, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G25/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device which controls the discharge of liquid from an elevated spray head according to the wind conditions. A wind sensor is mounted near the end of an irrigation boom or other elevated pipe. An end spray head for the boom is controlled by a motor driven valve. When the sensor detects wind along the boom above a selected velocity, a circuit is activated to operate the valve motor in a manner to turn the spray head off or on, depending on the wind direction. The circuit includes time delay relays which disregard sudden gusts of wind.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.