Composite type screen

Details Composite type screen Composite type screen

1994-03-08

1995-07-25

Bidwell, James R.

Classifying, separating, and assorting solids

Sifting

Combined type

209273, 209300, 210415, B07B 104

Patent

active

054354447

ABSTRACT:
A composite type screen includes a machine main body divided into a first structural part in which a first processing chamber is contained and a second structural part in which a second processing chamber is contained and a screen plate is interposed between the surfaces of the first structural part and the second structural part. Since a first rotary shaft having an impeller mounted thereto is disposed in the first processing chamber and a second rotary shaft having a rotor mounted thereto is disposed in the secondary processing chamber, the first rotary shaft does not pass through the first screen member. As a result, a seal member for the first screen member is not needed, whereby the number of parts is reduced and moreover a paper material can pass through the entire region of the first screen member and the area thereof through which the paper material passes is increased, so that a foreign substance removing efficiency can be improved.

REFERENCES:
patent: 4462901 (1984-07-01), Gauld
patent: 4657636 (1987-04-01), Satomi
patent: 4941970 (1990-07-01), Ahs
patent: 4968417 (1990-11-01), Ahs
patent: 5074995 (1991-12-01), Hoglund

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