Rotary piston vacuum pump with washing installation

Rotary expansible chamber devices – Interengaging rotating members – Helical or herringbone

Reexamination Certificate

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Details

C418S001000, C418S015000, C418S083000, C418S097000

Reexamination Certificate

active

07819646

ABSTRACT:
A pump having a rotor, a stator, a housing enclosing the rotor and the stator, the housing having an inlet for a fluid, and a port for receiving a fluid which acts on deposits on a surface of the rotor and on a surface of the stator positioned downstream from the inlet.

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