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United States Patent 6118374
Douris , ê et al. September 12, 2000


Process and device for the recognition of screws used in extruders or metering devices

Saatkamp September 12, 2000

Abstract

The invention concerns a process and a device for the recognition of screws used in extruders or metering devices. In order to create a process that excludes the possibility that mixtures of granulates or powders with incorrect mixing ratios occur through installation of inappropriate screw shafts in metering screws, the screws are coded and the code is electronically identifiable.

 

 

 

 

 

 

 

 

 

 

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