Fuel tank

Details Fuel tank Fuel tank

2005-01-18

2005-01-18

Moy, Joseph Man-Fu (Department: 3727)

Receptacles

Sectional

Tank for fluids

C220S004140, C220S562000

Reexamination Certificate

active

06843384

ABSTRACT:
An internal reinforcement structure of a plastic fuel tank resists deformation of opposing walls of the fuel tank and provides an integral, and directionally sensitive, stress relief feature when pre-determined forces are exceeded. The stress relief feature is contained within a fuel chamber of the fuel tank defined by the opposing walls. Each wall has an inward projecting indentation of the structure which engage one-another at their distal ends or bottom portions, preferably, via a welded plastic engagement area. The indentations have a consistent wall thickness which has a higher cross-sectional area than the stress relief feature causing the stress relief feature to tear as opposed to the tank walls thereby assuring fuel tank integrity.

REFERENCES:
patent: 4526286 (1985-07-01), Jung et al.
patent: 6138859 (2000-10-01), Aulph et al.
patent: 6338420 (2002-01-01), Pachciarz et al.

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