Pumping device

Pumps – Motor driven – Electric or magnetic motor

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Details

4151981, 417420, 310115, F04B 1700

Patent

active

041100590

ABSTRACT:
An electrical pumping device comprising at least two coaxially rotatable pump impellers, at least two coaxial separate passageways, one impeller positioned within each passageway, pole support parts attached to each of said impellers, said pole support parts forming a part of at least one electromotor and distributed about the axis of rotation in a radially spaced relation.

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