Irrigation system
US4186763A · kind A · utility
10Cited by
4References
4Claims
0Family size
Inventors
Key dates
| Filing date | Mar 20, 1978 |
| Grant date | Feb 5, 1980 |
| Priority date | — |
| Expiry date | Mar 20, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8807
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An irrigation system having a generally vertical water delivery pipe and a water distribution pipe extending horizontally from and communicating with the delivery pipe. The distribution pipe is driven in rotation around an axis defined by the water delivery pipe by a hydraulic fluid operated drive, while hydraulic fluid for actuating the drive is circulated between the drive and a pump or the like through a conduit system which includes a rotary joint encircling the axis defined by the delivery pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.