Water sprinkler
US4180210A · kind A · utility
3Cited by
7References
34Claims
0Family size
Inventor
Key dates
| Filing date | Apr 5, 1978 |
| Grant date | Dec 25, 1979 |
| Priority date | — |
| Expiry date | Apr 5, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/01
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A water sprinkler is described for developing predetermined but variable patterns of water coverage. The sprinkler includes a plurality of pattern-defining apertures which are contoured in accordance with desired patterns of water coverage to pass varying but predetermined amounts of water as a sprinkler nozzle rotates. A sampling aperture progressively samples the outputs of selected pattern-defining apertures in synchronism with the rotation of the sprinkler nozzle so as to conform the water output of the nozzle to that of the desired pattern of water coverage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.