The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2010
Filed:
Nov. 09, 2007
Yasuwo Fukuyo, Tokyo, JP;
Takeaki Kikuchi, Tokyo, JP;
Jun Waki, Tokyo, JP;
Seiji Kino, Saga, JP;
Kazunobu Hirao, Hiroshima, JP;
Katsumi Yoshida, Tokyo, JP;
Izumi Ohnishi, Tokyo, JP;
Masahiro Saito, Tokyo, JP;
Yasuwo Fukuyo, Tokyo, JP;
Takeaki Kikuchi, Tokyo, JP;
Jun Waki, Tokyo, JP;
Seiji Kino, Saga, JP;
Kazunobu Hirao, Hiroshima, JP;
Katsumi Yoshida, Tokyo, JP;
Izumi Ohnishi, Tokyo, JP;
Masahiro Saito, Tokyo, JP;
The Japan Association of Marine Safety, Tokyo, JP;
M.O. Marine Consulting, Ltd., Tokyo, JP;
Shinko Ind, Ltd., Hiroshima, JP;
Laboratory of Aquatic Science Consultant Co., Ltd., Tokyo, JP;
Mitsui Engineering & Shipbuilding Co., Ltd., Tokyo, JP;
Abstract
A water treatment system to be installed in a tanker or other cargo ship for destruction of aquatic organisms and microorganisms that may be contained in the water, usually seawater, being pumped into the ship's ballast tank or tanks. Included is a ballast pump having an intake conduit for drawing water from the sea, and a delivery conduit for delivering the water under pressure to the ballast tank. The delivery conduit has mounted therein a slitted or otherwise open-worked screen for mechanically killing the aquatic lifeforms contained in the water by shearing action. For chemical treatment, on the other hand, part of the water being delivered by the ballast pump is bypassed into an ozone impregnator thereby to be impregnated with ozone from an ozonizer. A bypass pump repressurizes the ozone-impregnated water for returning the same into the delivery conduit.