Pressure compensating drip irrigation hose
US6736337B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | Jul 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P60/21
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pressure compensated drip irrigation hose (20) includes a hose having a wall (21) with an inner surface (21a). A continuous elastomeric strip member (30) is connected to the inner surface (21a). The continuous elastomeric strip member (30) and inner surface (21a) form a plurality of emitters. The emitters have an inlet section (40), a pressure reducing section (60) which is downstream from the inlet section (40). A pressure responsive section (70) is downstream from the pressure reducing section (60) and the outlet section (80) is downstream from the pressure responsive section (70). The continuous elastomeric strip member (30) is constructed from a material softer than the wall (21).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.