Centrifugal pump and method of manufacturing the same

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural rigidly related blade sets

Reexamination Certificate

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C415S199200, C415S200000, C415S182100, C415S215100, C415S216100, C029S888020, C029S888024

Reexamination Certificate



A centrifugal pump includes a diffuser section for decreasing a velocity of the fluid discharged from an impeller, a return vane for leading the fluid which has passed through the diffuser section to a discharge side, and a main plate to which the diffuser section and the return vane are fixed.

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patent: 2005/0002789 (2005-01-01), Kajiwara et al.
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patent: 2004-183486 (2004-07-01), None


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