Patent ID: 6041726
Filing Date: 2000-03-28
Classification: B63B,G11C

Abstract:
An oil tanker hull assembly in an oil tanker ship used to carry a crude oil cargo or other chemical composition liquid cargo, comprising:a) an inner main tank oil cargo assembly used to receive and convey a primary oil cargo;b) an outer hull tank oil cargo assembly surrounding and enclosing said inner main tank oil cargo assembly used to receive and convey a secondary oil cargo;c) said outer hull tank oil cargo assembly divided into compartmentalized hull tanks by compartment bulkhead assemblies;d) said compartment bulkhead assembly having open tops with a top surface of bulkhead side wall members; ande) said top surface positioned at or below sea level when the oil tanker ship is carrying a full load of cargo;whereby on rupture of one of said compartmentalized hull tanks, the secondary oil cargo in said ruptured compartmentalized hull tank is forced upwardly and into adjacent ones of said compartmentalized hull tanks by sea water flowing through the rupture until fluid pressures are equalized thus preventing an oil spill into sea water surrounding the oil tanker ship.