Drip irrigation emitter and flow control unit included therein
US5636797A · kind A · utility
54Cited by
6References
20Claims
0Family size
Inventor
Key dates
| Filing date | Feb 16, 1995 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Feb 16, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/22
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A drip irrigation emitter includes a tube having a plurality of flow control units bonded to its inner face providing a flow control passageway between the interior of the tube and each of a plurality of discharge openings formed through the wall of the tube. Each flow control unit includes a body member bonded to the inner face of the tube, a cover also bonded to the inner face of the tube, and a deformable elastomeric membrane between the body member and cover and defining a pressure-compensated flow control passageway through the flow control unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.