Watering and aerating soil with a drip line
US6959882B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jun 13, 2003 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Sep 5, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1866
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
When the dripline used for watering soil, low pressure air in the range 10–100 inch water column is flowed through a buried dripline, in alternation of with flow of water at 5 psig or more. The flow of air provides oxygen to the soil, and more widely and evenly disperses the water within the soil, and impedes or counters saturation. A buried dripline runs in a U-shape path, so that low pressure and flow of air from emitters near the dripline terminal end is compensated for by higher pressure and flow of air near the inlet end. Flow of low pressure air or other gas, which pushes water from the dripline and surrounding soil, enables use of driplines in soil subject to freezing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.