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:
Dec. 01, 2009
Filed:
Jul. 22, 2004
Per Lothe, Førresfjorden, NO;
Per Lothe, Førresfjorden, NO;
Knutsen OAS Shipping AS, , NO;
Abstract
A method and device are provided for reducing the oxygen content of seawater, where the seawater is introduced into the upper part () of a downcomer (), particularly for treatment of ballast water in a ballast tank () of a ship (). A seawater intake pipe () runs from the outside of the ship to a ballast pump () that is designed to pump the water on through a pump pipe () and up to the upper part of the downcomer. The downcomer extends mainly vertically down to the ballast compartment of the ship, where the ballast water can be distributed between several ballast compartments by means of distribution headers and valves. One aim of the invention is to neutralize organisms in the ballast water.