Molten metal pump system
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United States of America Patent
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-
Mar 22, 2005
Grant Date -
Apr 29, 2004
app pub date -
Oct 29, 2002
filing date -
Oct 29, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A molten metal pump system which generally provides a refractory connection joint for connecting a refractory pump post to a pump base, the pump post including a refractory post with a first end, the first end including an internally threaded joint screw aperture; a refractory base with a post aperture configured to receive the first end of the refractory post, and with a screw aperture contiguous with the post aperture; and a joint screw with a first end and a second end, the joint screw including a threaded external surface and a retention shoulder, the joint screw configured to insert through the screw aperture in the refractory base with the threaded external surface engaging the internally threaded joint screw aperture of the refractory post, and the retention shoulder engaging the refractory base.
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