Flow control device particularly useful in drip irrigation emitters
US5634594A · kind A · utility
43Cited by
9References
20Claims
0Family size
Inventor
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/22
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A flow control device particularly useful as a drip irrigation emitter includes a housing having a housing including a plurality of inlet openings defining a plurality of filtering inlet passageways to communicate with a pressurized fluid, an outlet opening, and a connecting passageway connecting the inlet openings to the outlet opening, and a pressure-deformable elastomeric membrane having a edge overlying the inlet openings and deformable to change the effective cross-sectional areas thereof in a dynamic manner in response to the pressure of the pressurized fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.