Pumping
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United States of America Patent
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N/A
Issued Date -
Jun 21, 2007
app pub date -
May 17, 2004
filing date -
May 16, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A pump and a method of moving molten metal is provided in which a tube open at one end and closed at the other end cooperates with a secondary tube received within it, open at both ends, to pump metal from the open end of the tube down a space between the tube and secondary tube to the closed end of the tube and then return the metal up the centre of the secondary tube. A simpler way of providing circulation of molten metal is provided.
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