Irrigation system
US6431475B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Sep 27, 2000 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Nov 4, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G25/09
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fully automated land irrigation system to irrigate regular and irregular shapes of land. The system includes an expanse of water delivery pipe moved laterally while irrigating adjacent to a stationary row of spaced access valves supplied by a water main. A swing arm is pivotally mounted to one end of the delivery pipe and a valve coupler is mounted to the opposite free swinging swing arm end. Valve connection is made and the delivery pipe irrigates while traveling to the next successive access valve. The coupler is then disconnected from the valve and the free swing arm end and coupler are ground pivoted to the next valve where connection is again made. Delivery pipe travel results in rotation of the swing arm about the valve connection. This rotation feature also enables the swing arm and the water delivery pipe to the pivoted about a valve as an anchor to a similar position on the opposite side of the water main. The invention includes a new apparatus for raising and lowering the swing arm end and coupler thus coupling and uncoupling to a valve. Also, vertical position measuring shortens the time spent coupling and uncoupling. A new coupler apparatus improves reliability and co…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.