Irrigation system
US4877189A · kind A · utility
Inventor
Key dates
| Filing date | May 18, 1987 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | May 18, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G25/097
- 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. The invention includes a new connection apparatus for hydraulically connecting the traveling delivery pipe along the row of stationary access valves. A swing arm is pivotably 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 traveling the same distance found between successive access valves. The coupler is then disconnected from the valve and the free swing arm end, with coupler, is 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 be pivoted about a valve as an anchor to a similar position on the opposite side of the water main. The new connector also provides inherent geographic positioning for the traveling delivery pipe. The in…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.