Closed type kneader
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 3, 1991
Grant Date -
N/A
app pub date -
Sep 8, 1989
filing date -
Sep 8, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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