Cooling system expansion tank
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United States of America Patent
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Dec 17, 2013
Grant Date -
Mar 31, 2011
app pub date -
Mar 9, 2009
filing date -
Mar 10, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An expansion tank is disclosed in which a non-return valve is fitted in an outlet port of the expansion tank to limit backflow of coolant into the expansion tank in the event that the pressure in the expansion tank falls below the pressure in a return conduit thereby preventing the expansion tank from filling with coolant. The non-return valve and the expansion tank are formed as a single component and the non-return valve is located in an outlet port of the expansion tank.
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