Plastic article or earthenware shaping or treating: apparatus – With separate and distinct upstream agitating or kneading means – Serially arranged chambers each housing a kneading or mixing...
Patent
1991-04-29
1992-09-15
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
With separate and distinct upstream agitating or kneading means
Serially arranged chambers each housing a kneading or mixing...
366 80, 366 88, 366 89, 366 90, 425208, 4253761, 4253824, B01F 700, B29C 4700
Patent
active
051471981
ABSTRACT:
A pin transfer extruder is provided, wherein the pin-barrel and transfer mixing sections, which are known per se and have only been used individually hitherto, are jointly used in one extruder. Throttle pins, which are disposed in the transfer mixing section in the region of the greatest housing thread volume, permit universal use of the extruder in respect of the extruded material. The combination of both mixing systems permits the throughput of material to be increased in a surprising manner by 60% to 100%, while a constant mixing quality is maintained and the driving torque is halved. The number of the housing and screw flights remains independent of the cross-sectional area of the housing and screw threads because the number of housing and screw threads is constant.
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Bushey Scott
Hermann Berstorff Maschinenbau GmbH
Woo Jay H.
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