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United States Patent 5873654
Douris , ê et al. February 23, 1999


Twin screw extruder type batch mixers

Lu February 23, 1999

Abstract

A twin screw extruder type batch mixer that is comprised of two screws parallel to each other with the distance between the two screw center lines being larger or equal than the half of the sum of two screw diameters and the two screws conveying material in the opposite direction during mixing and reacting stage and the same direction during charging and discharging stages; and a barrel casing completely enclosing said screws which can run clockwise and counter-clockwise independently.

 

 

 

 

 

 

 

 

 

 

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