Adjustable drip emitter
US9258949B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2013 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Dec 12, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G25/023
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A flow-regulating drip emitter, comprising a base that includes an inlet connector configured for connection to an upstream line with a water source; and a cover attached to the base, the cover including an outlet connector configured for connection to a downstream line. At least one of the cover or the base defines at least a first labyrinth passageway having a first resistance to water flow and a second labyrinth passageway having a second resistance to water flow different from the first resistance to water flow; and further wherein the base and the cover are structured so that movement of the cover in relation to the base connects the inlet connector to the outlet connector via only the first labyrinth passageway, and wherein further movement of the cover in relation to the base connects the inlet connector to the outlet connector via only the second labyrinth passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.