Search International and National Patent Collections

1. (WO2018043269) MULTI-HOLE NOZZLE FOR USE IN AQUATIC PEST CONTROL

Pub. No.:    WO/2018/043269    International Application No.:    PCT/JP2017/030262
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Fri Aug 25 01:59:59 CEST 2017
IPC: A01K 63/04
Applicants: KOWA KOGYO CO., LTD.
株式会社晃和工業
AQUA IMPULSE CORPORATION
アクアインパルス株式会社
TOHOKU UNIVERSITY
国立大学法人東北大学
Inventors: KIJIMA Akihiro
木島 明博
KOHAMA Yasuaki
小濱 泰昭
IKEDA Minoru
池田 実
KURITA Yoshihisa
栗田 喜久
CHIBA Ikuo
千葉 郁雄
KANNO Tetsuya
菅野 哲也
Title: MULTI-HOLE NOZZLE FOR USE IN AQUATIC PEST CONTROL
Abstract:
Provided is a multi-hole nozzle for use in aquatic pest control which, while supplying water, physically kills aquatic pests and thereby allows intake water to be directly supplied to a culture tank or a ballast tank without the need for a pre-treatment water tank, chemical agents, or neutralizing agents. This multi-hole nozzle A for aquatic pest control has three or more adjacent nozzle holes 1, each nozzle hole 1 being configured from: an inlet-side opening section 2 having a diameter that decreases from an inlet opening to a throat section 3 at the center of the hole; an outlet-side opening section 4 having a diameter that increases from the throat section 3 to an outlet opening; and the throat section 3, which has the smallest inner diameter. The adjacent nozzle holes 1 are spaced apart by such a distance that the inlet-side opening sections 2 thereof interfere each other. Partitions 5 of the interference portions 6 of the inlet-opening sections 2 are cut out in a U-shape, and the remaining portions 5a between the adjacent U-shaped cut-out portions 5b are formed into a sharp tip.