Method for cleaning particle classifier

Cleaning and liquid contact with solids – Processes – Using solid work treating agents

Reexamination Certificate

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Details

C134S007000, C134S008000, C134S022100, C134S022110, C134S022180, C134S023000, C134S034000, C134S042000

Reexamination Certificate

active

06979372

ABSTRACT:
A method for cleaning portions of a particle classifier, such as for example the rotor and/or stator, includes providing carbon dioxide particles to the classifier. Carbon dioxide particles are supplied to the classifier via a particle inlet and subjected to processing conditions similar to those utilized in particle classification. Cleaning a classifier with carbon dioxide particles may be accomplished off-line or on-line.

REFERENCES:
patent: 6004400 (1999-12-01), Bishop et al.
patent: 2003/0232266 (2003-12-01), Sugiura et al.

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