Rotational screw for mixing

Details Rotational screw for mixing Rotational screw for mixing

1988-04-25

1989-06-20

Hornsby, Harvey C.

Agitating

Rubber or heavy plastic working

Stirrer is through-pass screw conveyor

366 88, 366 89, 366319, 366323, B01F 708, B29B 742

Patent

active

048404926

ABSTRACT:
The present invention relates to a rotation screw for mixing, for use with an extruder for forming by forcing out a volume of synthetic resin or a mixture of synthetic resin with additives including glass or carbon fiber, calcium carbonate, etc, having a series of centrally situated mixing recesses of large width and a plurality of mixing recesses of small width arranged on both sides of said wide mixing recesses, both of which are helically formed, in specified mixing positions, in the periphery of the rotational screw, arranged in helically adjoined relationship, and partially communicated transversely of the helical direction with one another so that the amount of delivery becomes great and the highly intimate mixing can be effected.

REFERENCES:
patent: 3006029 (1961-10-01), Saxton
patent: 3687423 (1972-08-01), Koch et al.
patent: 3737151 (1973-06-01), Schaeffer et al.
patent: 3917507 (1975-11-01), Skidmore
patent: 3985348 (1976-10-01), Skidmore
patent: 3998438 (1976-12-01), Sokolow
patent: 4045401 (1977-08-01), Stenmark et al.
patent: 4060226 (1977-11-01), Schweller
patent: 4107788 (1978-08-01), Anders
patent: 4639143 (1987-01-01), Frankland, Jr.
patent: 4695165 (1987-09-01), Fukumizu et al.

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