Drip irrigation lines
AssigneeAgroteam Consultants Ltd.
InventorAmir Cohen
Life of this patent
Estimating the term…
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.
Claims17
A drip irrigation line, comprising:
- a continuous tube having a plurality of flow-reducer elements spaced longitudinally of the tube;
- each of said flow-reducer elements comprising a strip formed with an inlet chamber of a predetermined depth at one end having an inlet opening, an outlet chamber of said predetermined depth at the opposite end having an outlet opening, and a flow-reducer path between said two chambers;
- said strip of each flow-reducer element being further formed with a connecting passageway, of a depth less than said predetermined depth, between, and axially spaced from, said flow-reducer path and said outlet chamber;
- said connecting passageway including a wide groove of a depth from the inner face of the tube less than that of said predetermined depth, and a narrow groove, of a depth from the inner face of the tube greater than that of said wide groove but less than that of said predetermined depth, extending through a part of said wide groove;
- at least the portion of the strip forming said connecting passageway being of elastomeric material.
A drip irrigation line, comprising:
- a continuous tube having a plurality of flow-reducer elements spaced longitudinally of the tube;
- each of said flow-reducer elements comprising a strip formed with an inlet chamber of a predetermined depth at one end having an inlet opening, an outlet chamber of said predetermined depth at the opposite end having an outlet opening, and a flow-reducer path between said two chambers;
- said strip of each flow-reducer element being further formed with a connecting passageway, of a depth less than said predetermined depth, between, and axially spaced from, said flow-reducer path and said outlet chamber;
- at least the portion of the strip forming said connecting passageway being of elastomeric material;
- said flow-reducer elements being separate, discrete strips bonded at spaced intervals to a continuous, elongated, flexible element which is in turn bonded to one surface of said tube.
A drip irrigation line, comprising:
- a continuous tube having a plurality of flow-reducer elements spaced longitudinally of the tube;
- each of said flow-reducer elements comprising a strip of elastomeric material formed with an inlet chamber of a predetermined depth at one end having an inlet opening, an outlet chamber of said predetermined depth at the opposite end having an outlet opening, a labyrinth-type flow-reducer path of said predetermined depth between said two chambers, and a connecting passageway, of a depth less than said predetermined depth, between, and axially spaced from, said flow-reducer path and said outlet chamber;
- said connecting passageway including a wide groove of a depth from the inner face of the tube less than that of said predetermined depth, and a narrow groove, of a depth from the inner face of the tube greater than that of said wide groove but less than that of said predetermined depth, extending through a part of said wide groove.
The method of making a flow-reducer element by injection-moulding, characterized in that a plurality of different materials are injection-moulded during separate shots in a single mould, at least one of which materials is an elastomeric material to effect regulation of the dripper during its operation.
Dependencies are inferred from the claim text.