Closed type kneader

Details Closed type kneader Closed type kneader

1989-09-08

1991-09-03

Hornsby, Harvey C.

Agitating

Rubber or heavy plastic working

Stationary mixing chamber

366 76, B01F 704, B29B 720

Patent

active

050447602

ABSTRACT:
A closed type kneader has two rotors rotatably mounted in a casing for rotation about parallel axes. Two blades extend from each of the rotors such that the blades of the rotors intermesh. Each rotor has both a main blade and an auxiliary blade. The auxiliary blade has a length not less than one-half of the length of the rotor and an angle of torsion not smaller than 0.degree. in the same direction as the angle of torsion of the main blade. The rotors are rotated in synchronism with one another so that the main blade tip of each rotor may be in phase with the auxiliary blade tip of the other rotor at the axial centers of the rotors.

REFERENCES:
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patent: 2015618 (1935-09-01), Cooke
patent: 2559418 (1951-07-01), Ford
patent: 2736754 (1956-02-01), Webb
patent: 3230581 (1966-01-01), Tyson et al.
patent: 3490750 (1970-01-01), Brennan, Jr.
patent: 3734468 (1973-05-01), Cheng et al.
patent: 4184773 (1980-01-01), Ellwood
patent: 4234259 (1980-11-01), Wiedmann et al.
patent: 4300838 (1981-11-01), Sato et al.
patent: 4718771 (1988-01-01), Asai et al.
patent: 4859074 (1989-08-01), Asai et al.

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