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1. US20180027756 - Emitter and drip irrigation tube

Office United States of America
Application Number 15552968
Application Date 23.02.2016
Publication Number 20180027756
Publication Date 01.02.2018
Grant Number 10362740
Grant Date 30.07.2019
Publication Kind B2
IPC
A01G 25/02
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
25Watering gardens, fields, sports grounds or the like
02Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
CPC
Y02A 40/237
A01G 25/023
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
25Watering gardens, fields, sports grounds or the like
02Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
023Dispensing fittings for drip irrigation, e.g. drippers
Applicants Enplas Corporation
Inventors Masahiro Kidachi
Agents Brundidge & Stanger, P.C.
Priority Data 2015-035450 25.02.2015 JP
2015112274 02.06.2015 JP
Title
(EN) Emitter and drip irrigation tube
Abstract
(EN)

In the present invention, the pressure reducing flow path reduces the pressure of an irrigation liquid, and guides the irrigation liquid to the flow-rate decreasing part. The bypass flow path guides the irrigation liquid to the flow path opening/closing part in a state where the pressure of the irrigation liquid is maintained at a pressure higher than that of the irrigation liquid that has passed through the pressure reducing flow path. When the pressure of the irrigation liquid is lower than a first pressure, the irrigation liquid passes through the pressure reducing flow path and the bypass flow path to be guided to the discharge part. When the pressure of the irrigation liquid is a second pressure or higher, the irrigation liquid passes through the pressure reducing flow path to be guided to the discharge part.