Filler Neck for a Vehicle with Improved Diffusion Resistance
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United States of America Patent
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Issued Date -
Feb 9, 2017
app pub date -
Aug 8, 2016
filing date -
Aug 7, 2015
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A tank filler neck for a motor vehicle including a tube having an outer tube portion and an inner tube portion, a barrier layer embedded between the outer tube portion and an inner tube portion, the barrier layer having a thickness at a first region thereof that is greater than a thickness than remaining regions thereof, and a seal arranged to directly contact the barrier layer at the first region. In that way, the barrier layer is to inhibit diffusion of hydrocarbons through the tube at a first region more than the remaining portion(s) the plastic tube.
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