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Pump for molten materials with suspended solids

  • US 6,551,060 B2
  • Filed: 02/01/2001
  • Issued: 04/22/2003
  • Est. Priority Date: 02/01/2000
  • Status: Expired due to Term
First Claim
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1. A molten material pump comprising:

  • a base member defining a chamber within which an impeller is disposed;

    a rotatable shaft operatively connected to the impeller having a first end and a second end, said second end of said shaft having a non-circular shape dimensioned to mate with a cooperating non-circular shaped opening in the impeller;

    a motor operatively connected to the rotatable shaft for driving the rotatable shaft; and

    , wherein the impeller comprises a substantially cylindrical shape and includes passages from a peripheral sidewall to an interior and said sidewall further includes a plurality of grooves extending substantially diagonally to top and bottom surfaces of the impeller.

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