Screening element

Details Screening element Screening element

2007-12-04

2007-12-04

Mackey, Patrick (Department: 3653)

Classifying, separating, and assorting solids

Sifting

Elements

C209S392000, C209S397000, C209S404000, C209S412000, C209S413000

Reexamination Certificate

active

10500871

ABSTRACT:
The invention provides a screen which has a screen body (12) and a plurality of ribs which extend across the screen body. Screening apertures (118) are defined in the screen body by the ribs. A reinforcing frame (124) is embedded in the screen body, which frame is made of a first plastics material which has a greater density than a second plastics material from which the screen body (12) is made. The frame has keying formations formed therein to assist in bonding between the frame and the screen body.

REFERENCES:
patent: 2870910 (1959-01-01), Welmer
patent: 3351228 (1967-11-01), Huisman
patent: 4563270 (1986-01-01), Wolff
patent: 4674251 (1987-06-01), Wolff
patent: 4857176 (1989-08-01), Derrick et al.
patent: 5372261 (1994-12-01), Galton
patent: 6202857 (2001-03-01), Keller
patent: 6714121 (2004-03-01), Moore
patent: 0 296 273 (1988-12-01), None

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