Water sprinkler for spraying a select depth of water per unit area onto one or a group of ground areas of any shape and relative size
US11154019B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 19, 2020 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | Jun 19, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B12/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A sprinkler system for lawns and landscaping is custom-fitted to each particular lot or area to be irrigated. Each in-ground, pop-up, rotating sprinkler head has a pattern defining plate fitted therein having a central opening made therein, as by laser cutting, solid particle deposition, or the like, the opening being congruent with the area to be watered, as adjusted for any sloped portions of the area. A pattern sampling aperture aligned with spray nozzles of the sprinkler rotates about the opening in the defining plate, feeding an amount of water to each radial line of the area about the sprinkler sufficient to reach from the sprinkler position out to the periphery. A speed control comprising a spring-biased cam and an opposing turbine wheel in the water flow slows spray head rotation at arc portions of longer water throw and speeds rotation where the throw is shorter, thus to obtain substantially uniform water coverage over all parts of the area served by each sprinkler head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.