Corrosion-resistant impeller for a magnetic-drive...

Pumps – Motor driven – Electric or magnetic motor

Reexamination Certificate

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C415S122100, C415S142000, C415S200000, C416S24400R

Reexamination Certificate

active

06908291

ABSTRACT:
An impeller for a magnetic-drive centrifugal pump includes a core for supporting a magnetic assembly of magnets. An inner barrier covers at least part of the magnets. The inner barrier hermetically isolates the magnetic assembly within the impeller. For example, in one embodiment the inner barrier may be sealed or hermetically connected to the core at one or more seams. An outer barrier overlies the inner barrier.

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