Stopper Rod
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United States of America Patent
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N/A
Issued Date -
Jun 18, 2009
app pub date -
Jun 1, 2006
filing date -
Jun 2, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A stopper rod for controlling the flow of molten steel from a tundish has a metal carrier element partly received in an internal passageway of the stopper rod, the carrier element compressing sealing means between a frustoconical undersurface of a laterally enlarged portion thereof and a complementary seating surface of the stopper rod passageway, there being an insert threadedly engaged with one of the carrier element and stopper rod body at a position above a laterally enlarged portion of the carrier element, with further sealing means disposed between said insert and the carrier element. Preferably the insert is a nut screwed down onto a washer which compresses the further sealing means.
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