Sealing system for use in the filler neck of a fuel tank
AssigneeFirma Carl Freudenberg
InventorsAndreas Sausner, Jens Sielaff
Life of this patent
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Abstract
Sealing system for use in the filler neck of a fuel tank, comprising a radial gasket for sealing a filler gun which can be introduced into the filler neck, a sealing surface, and an axial gasket between said sealing surface and a lead-free valve. The lead-free valve is fastened to a spring-loaded lever and urged by the lever against the axial gasket. The lead-free valve and/or the axial gasket are supported pivotingly with respect to the central axis of the filler neck and can thereby be laid flatly against one another.
Claims8
Sealing system for use in the filler neck of a fuel tank, said filler neck having a central axis and a radial gasket for sealing a filler nozzle inserted in said neck, said system comprising
- a sealing surface concentric to the axis of said filler neck,
- a spring loaded lever,
- a valve attached to said spring loaded lever by a ball joint and urged by said lever with a force toward said sealing surface,
- means causing said ball joint to bind so that movements within the joint are possible only by forces at least as great as the force produced by said spring loaded lever,
- an axial gasket independent of said radial gasket and lying between said valve and said sealing surface, and
- means for permitting pivoting of at least one of said valve and said axial gasket relative to said axis of said filler neck.
Dependencies are inferred from the claim text.