Fuel cap
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United States of America Patent
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-
Jun 29, 2004
Grant Date -
Jun 20, 2002
app pub date -
Aug 23, 2001
filing date -
Dec 19, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There are provided firstly a fuel cap which irrespective of its type has a structure that there is no transpiration of gasoline vapor until the cap is fully open and secondly particularly a bayonet-type fuel cap which has a structure that there is no eruption of fuel under a pressure difference between a internal pressure of the tank and atmospheric pressure. In each case the fuel cap consists of a closure 3 fitting into the opening of a filler neck 4 and a handle 2 integral with the closure 3, and an upper seal ring 10 and a lower seal ring 1 for sealing the filler neck 4 are each fitted individually to the closure 3 positionally apart from the other.
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