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SYSTEM FOR RELEASING GAS INTO MOLTEN METAL

  • US 20080213111A1
  • Filed: 05/13/2008
  • Published: 09/04/2008
  • Est. Priority Date: 07/12/2002
  • Status: Active Grant
First Claim
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1. A base for a molten metal pump, the base comprising:

  • a pump chamber;

    a discharge in communication with the pump chamber, the discharge including a first section having a first cross-sectional area and a second section having a second cross-sectional area, the second section being downstream of the first section and the second cross-sectional area being larger than the first cross-sectional area; and

    a gas-release opening in communication with one or more of the group consisting of the first section and the second section.

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