Roots pump connection channels separating adjacent pump stages

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United States of America Patent

PATENT NO 9476423
APP PUB NO 20140205483A1
SERIAL NO

14238611

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Abstract

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A Roots pump comprises a plurality of multi-toothed rotary pumps, each forming a pump stage, and connection channels connecting respective adjacent pump stages. The invention provides that the connection channels are arranged in partitioning walls separating the adjacent pump stages.

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Patent Owner(s)

Patent OwnerAddress
LEYBOLD GMBH50968 KÖLN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Birch, Peter Sussex, DE 16 287
Dreifert, Thomas Kerpen, DE 28 115
Jenkins, Robert Sussex, DE 21 536
Tunna, Clive Sussex, DE 3 1

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