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Dual impeller pump

  • US 5,603,831 A
  • Filed: 05/24/1994
  • Issued: 02/18/1997
  • Est. Priority Date: 05/24/1994
  • Status: Expired due to Term
First Claim
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1. A pump for use with an aquarium filter, comprising:

  • an impeller housing, the impeller housing defining first and second inlets and first and second outlets,an axis,first impeller blades associated with the first inlet and the first outlet, the first impeller blades being revolvable about the axis,second impeller blades associated with the second inlet and the second outlet, the second impeller blades being revolvable about the axis,an impeller disc interposed between, and coupled to, said first impeller blades and said second impeller blades, said impeller disc being revolvable about the axis along with said first and second impeller blades, anda motor having a rotor for driving the first and second impeller blades and the impeller disc, the rotor being rotatably mounted on the axis.

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