Controlling device for rotating sprinkler
US6494385B1 · kind B1 · utility
6Cited by
8References
11Claims
0Family size
Inventor
Key dates
| Filing date | Aug 23, 2001 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Aug 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/01
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A controlling device for a rotating sprinkler is composed of a sleeve (10), a compressing block (21), a spring (22), a controller (23), a rotator (24), a cushion (25), and a shelter ring (26). The rotator (24) rotates with a rotating sprinkler (50) synchronously and operates with the controller (23) to construct a gap selectively therebetween so that a quantity of water flowing into the rotating sprinkler (50) is changed when the gap is formed or not. Whereby the controlling device arranges a substantially rectangular spraying arrangement of the rotating sprinkler (50).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.