having air recirculating within the apparatus

Full Title

Selective separation of solid materials carried by, or dispersed in, gas currents > using centrifugal force > having air recirculating within the apparatus

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

SEPARATING SOLIDS FROM SOLIDS; SORTING

Subclass:

SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL