Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Patent
1992-06-16
1994-06-07
Hornsby, Harvey C.
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
366 90, 366319, 366322, 425208, B01F 708, B29B 742
Patent
active
053183576
ABSTRACT:
A screw for use in an plasticating injection apparatus includes a plurality of interrupted primary flights. An outer surface of a primary valley is formed by the primary flights and features a plurality of plateaus. The plateaus span adjacent sections of the primary flights and define shallow levels between deeper levels of the primary valleys. This depth differential contributes to a turbulent mixing action which, along with the primary and secondary valleys, contributes to improve mixing action within a metering section of the screw. The primary flights are interrupted by secondary valleys which are of opposite hand to the primary valleys.
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Screw Design Efficiency in Color Distributive Mixing with ABS Resins by Barbara Furches and John Bozzelli (Article reprinted from ANTEC '87).
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Bodnar Shawn P.
Colby Paul N.
Smith Bradley P.
Cooley Charles
Hornsby Harvey C.
Spirex Corporation
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