B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
B07B 1/12 (2006.01) B07B 1/44 (2006.01) B07B 1/46 (2006.01) B07B 1/50 (2006.01) B65G 27/30 (2006.01)
Patent
CA 2121784
A screen assembly according to the invention screens material by size and includes first (61) and second (62) sets of transversely spaced apart, longit- udinally extending first (63) and second (64) members respectively. The members are parallel to each other, and some members (64) of the second set (62) are located between some members (63) of the first set (61). At least one of the sets is mounted to vibrate along a longitudi- nal axis (19) to feed material therealong. A plurality of longitudinally spaced apart, transversely extending third mem- bers (68, 72) are located between adja- cent first and second members so as to define a plurality of screen openings (77) between the first, second and third members. Third members (68, 72) are mountable so as to be out-of-phase with vibrations of the said at least one of the first (61) or second (62) sets of longitudi- nally extending members. The screen as- sembly can be installed in a vibrating conveyor, such that the first members (63) vibrate with a pan (22) of the conveyor, so as to feed material along the first members (63). With a dynamically balanced con- veyor, the second members (64) are connected to a structure (33, 41, 43, 45) for dynamically balancing the conveyor, and thus are vibrated out-of-phase with the first members (63).
Bull Housser & Tupper Llp
Edem Steel Ltd.
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