Drip irrigation lines
US5203503A · kind A · utility
60Cited by
6References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Jan 29, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A drip irrigation line includes a continuous tube having a plurality of flow-reducer elements each including a strip formed with an inlet chamber at one end having an inlet opening, an outlet chamber at the opposite end having an outlet opening, a flow-reducer path between the two chambers, and a connecting passageway between, and axially spaced from, the flow-reducer path and the outlet chamber. At least the portion of the strip forming the connecting passageway is of elastomeric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.