Overflow vortex transfer system
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United States of America Patent
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Nov 30, 2021
Grant Date -
Feb 9, 2017
app pub date -
Oct 20, 2016
filing date -
Jun 16, 2009
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
The present invention is directed to a molten metal pump comprising an elongated pumping chamber tube with a base end and an open top end. A shaft extends into the tube and rotates an impeller therein, the impeller rotates proximate the base end. The tube has a diameter at least 1.1 times the diameter of the impeller. The pumping chamber tube preferably has a length at least three times the height of the impeller. The base end includes an inlet and the top end includes a tangential outlet. Rotation of the impeller draws molten metal into the pumping chamber and creates a rotating equilibrium vortex that rises up the walls of the pumping chamber. The rotating vortex adjacent the top end exists the device cia the tangential outlet.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
PYROTEK INC | SPOKANE WA 99201 |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bright, Mark A | Sewickley, US | 19 | 1420 |
Henderson, Richard S | Solon, US | 45 | 3332 |
Morando, Jorge A | Solon, US | 45 | 1091 |
Ritchie,, Jr Herbert L | Macedonia, US | 3 | 109 |
Tetkoskie, Jason | Cleveland Heights, US | 17 | 558 |
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