Dual flight rotors for continuous mixer assembly
AssigneeTech, Process & Engineering, Inc.
InventorsKelly Ziegenfus, H. Altenburg, Donald Woodring, Harold Schafer, James Hower
Life of this patent
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Abstract
In the field of continuous mixer apparatus for commingling particulate thermoplastic materials, employing at least one main rotor with a helical profile body configuration, an improved profile for the peripheral threads is provided. It presents a first upstream feed flight having a plurality of Lowenherz profile outer threads and second downstream feed flight having a plurality of screw-type outer threads, both being adjacent and integral with the periphery of the main rotor.
Claims10
In a continuous mixer apparatus adapted for commingling particulate thermoplastic material of varying polymeric compositions, and having a mixer barrel, at least one main rotor with a helical profile body section at one longitudinal end thereof, a driven journal located at an opposite end, a drive end rotor plate, a drive end packing seal retainer, and a packing gland seal means at the drive end, the improvement in the main rotor external configuration which comprises:
- (a) a first upstream (leading) feed flight having a plurality of Lowenherz profile threads integral with the outer periphery of the main rotor;
- and,
- (b) a second downstream (trailing) feed flight, abutting the first flight and having a plurality of screw-type outer standard threads, also integral with the periphery of the main rotor, which standard threads terminate at an abutting trailing helix flight;
Dependencies are inferred from the claim text.