Molten metal impeller and shaft
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United States of America Patent
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Sep 5, 2017
Issued Date -
N/A
app pub date -
Dec 29, 2016
filing date -
Dec 30, 2015
priority date (Note) -
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Abstract
An assembly that includes an impeller having an upper face, a lower face, and a central bore sized and shaped to mate with a connecting end of a shaft. The central bore is defined by a plurality of ledges that each include a cement groove, and channels disposed between the ledges. The connecting end includes a plurality of slots, and extended grooves disposed between the slots. Each extended groove includes an end that extends perpendicular to the length of the extended groove. In application, the plurality of ledges frictionally communicate with the outer surface of the shaft. The plurality of channels of the impeller align with the plurality of grooves of the shaft defining passages that provide a tunnel for entrainment of particles entering the impeller. The cement grooves of the impeller further align with and receive the extended grooves and ends of the shaft resulting in a stronger connection between the shaft and impeller.
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