B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
B07B 1/30 (2006.01) B07B 1/42 (2006.01) B07B 1/46 (2006.01)
Patent
CA 2681366
A vibratory screening machine includes a primary screening area and a pre- screening assembly including a frame and screen assemblies. The screen assemblies are secured to the frame and form a pre-screening surface. The frame is attached to the vibratory screening machine such that the concave pre-screening surface is above the primary screening area.
L'invention concerne une machine de criblage vibrante comprenant une zone de criblage primaire et un ensemble de précriblage équipé d'un cadre et d'ensembles cribles. Lesdits ensembles cribles sont fixés au cadre et forment une surface de précriblage. Le cadre est fixé à la machine de criblage vibrante de sorte que la surface concave de précriblage se trouve au-dessus de la zone de criblage primaire.
Newman Christian
Wojciechowski Keith F.
Deeth Williams Wall Llp
Derrick Corporation
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