Device for injecting a treatment gas into a molten metal
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United States of America Patent
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Apr 29, 2008
Grant Date -
Nov 17, 2005
app pub date -
Aug 27, 2003
filing date -
Aug 28, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a device (8) which is used to inject a treatment gas into a molten metal contained in a tank (1) and which is designed to be fixed in one of the walls of said tank. The inventive device comprises at least one injection nozzle (18) which is equipped with an end hole (19). Said device is characterised in that it comprises a mobile means (14) which can be manoeuvred from outside of the injection device and which is used to unblock the aforementioned end hole of the nozzle.
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