Method of forming sieve unit for screening machine

Details Method of forming sieve unit for screening machine Method of forming sieve unit for screening machine

1987-09-11

1989-08-29

Silbaugh, Jan H.

Classifying, separating, and assorting solids

Sifting

With liquid treatment

291636, 29448, 156 85, 209379, 209397, 264238, 264265, 2642711, 264279, 264294, 264342R, 264345, 264348, 264DIG71, B07B 130, B07B 146, B29C 6344, B29C 6504

Patent

active

048614629

ABSTRACT:
A screen unit for a screening machine comprises a screen layer which is bonded to a screen frame spanning an opening thereof. The screen layer is uniformly heated before such bonding is effected so that cooling after bonding generates a tension in the screen layer to allow it to have a trampoline or drumhead vibratile action. The tension is maintained by a reinforcing frame embedded in the frame body.

REFERENCES:
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patent: 3387075 (1968-06-01), Wilcox
patent: 3719222 (1973-03-01), Hardong et al.
patent: 3792774 (1974-02-01), Rosenblum
patent: 4058883 (1977-11-01), Yoshida et al.
patent: 4219412 (1980-08-01), Hassall
patent: 4505812 (1985-03-01), Lees
patent: 4695420 (1987-09-01), Grawey et al.

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