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Application filed by Donald Scott RobinsonfiledCriticalDonald Scott Robinson
Priority claimed from PCT/AU1996/000544external-prioritypatent/WO1997009561A1/en
Publication of NZ315978ApublicationCriticalpatent/NZ315978A/en
A fluid storage vessel (60) such as for automotive fuel has opposed end walls (66, 68, 80) connected at or adjacent an outer periphery (82), and an annular internal wall (76) extending between the opposed end walls whereby it comprises a first inner chamber (70) defined by inner portions (66, 68) of the opposed end walls of the vessel and the internal wall (76) and a second annular chamber (64) around the first chamber defined by the internal wall and outer portions (80) of the opposed end walls connected at the outer periphery (82) of the vessel. The internal wall (76) prevents fluid flow between the chambers and each chamber (64, 70) is provided with a respective fluid flow connection (50, 52) to the exterior.