Accession Number : ADD001199

Title :   Cargo/Ballast Separation by Dual Membrane System.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Hering,F S ; Schwartz,J I

Report Date : 18 Mar 1974

Pagination or Media Count : 12

Abstract : The patent application concerns a ballasting system for oil tankers and other ships for separating the oil and the water ballast which eliminates oil contamination and pollution in ballasting and deballasting ships. Flexible fabric-reinforced or stretchable membranes are attached in liquid sealing relationship within the oil tank all around at the athwartships quarter-points to thereby preclude flow between the oil and ballast water. Ballast water is contained in the tank on one side of the membranes while the oil cargo or the flowable cargo is separated on the other side of the membranes. The entire tank can be maintained full for ship stability and prevention of sloshing of the fluids.

Descriptors :   *Ballast tanks, *Membranes, Oil pollution, Water pollution, Separation, Patents

Subject Categories : Marine Engineering
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE