Pressure-compensating drip irrigation hose and method for its manufacture
US6116523A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1999 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Dec 6, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pressure-compensating drip irrigation hose (10) has a water supply passage (26) and a flow regulating channel (24) smaller than the water supply passage (26). The flow regulating channel (24) comprises at least one inlet section (28), at least one outlet section (32), and at least one nozzle section (34) between an inlet section (28) and an outlet section (32). The inlet section (28) comprises one or more openings (38) connecting the water supply passage (26) to the flow regulating channel (24). The outlet section comprises one or more openings connecting the flow regulating channel (24) to the exterior of the hose (10). Preferably the flow regulating channel (24) further comprises at least one turbulent flow section (30) between an inlet section (28) and an outlet section (32). The nozzle section (34) is preferably between an inlet section (28) and a turbulent flow section (30). A method for making the drip irrigation hose (10) is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.