Low precipitation rate rotor-type sprinkler with intermittent stream diffusers
US8636233B2 · kind B2 · utility
13Cited by
20References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2011 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Sep 8, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7898
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An irrigation sprinkler includes an outer case and a riser extensible from the outer case by water pressure and normally in a retracted position. A nozzle is rotatably mounted at an upper end of the riser. A turbine is mounted in the riser for rotation by water entering a lower end of the riser. A gear train reduction is mounted in the riser. A gear driven coupling mechanism mounted in the riser couples the gear train reduction and the nozzle. A pressure regulator valve is located inside a nozzle turret of the sprinkler and includes a valve member that is pivotably mounted between the gear train reduction and the nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.