Automobile fuel system pressurization apparatus and method
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United States of America Patent
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Dec 27, 2016
Grant Date -
Sep 18, 2014
app pub date -
Feb 14, 2014
filing date -
Mar 14, 2013
priority date (Note) -
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Abstract
An automobile fuel system pressurization apparatus includes an inflatable bladder having a proximal end, a distal end, an exterior surface, and an inlet accessing an interior. The inflatable bladder being deformable between an expanded state and a deflated state. In the expanded state, the exterior surface of the inflatable bladder is configured to provide an air-tight seal in a filler neck of a fuel tank. A pump is coupled to the inlet of the inflatable bladder and is configured to supply air pressure to the interior of the inflatable bladder. A pressure relief valve is disposed at the distal end of the inflatable bladder and is in fluid communication with the interior of the inflatable bladder. When the inflatable bladder is in the expanded state, the pressure relief valve is configured to release a portion of the air pressure from the interior of the inflatable bladder into the fuel tank.
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