B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 33/327 (2006.01) B01D 29/03 (2006.01) B01D 33/01 (2006.01)
Patent
CA 2324680
A stepping screen assembly bottom portion is located in a liquid waste stream containing solids. The assembly contains a grid structure surrounded by an outer frame. The grid structure includes multiple parallel alternate static and dynamic bars horizontally spaced apart by spacers attached to the sides of the dynamic bars. Each bar has multiple vertically spaced apart shelves at a right angle to the vertical axis of the bar. The outer frame on each side of the grid structure contains a single and double stroke pneumatic cylinder connected to the dynamic bars. The single stroke cylinder causes the dynamic bars to move in a vertical plane and the double stroke pneumatic cylinder causes the dynamic bars to move in a horizontal plane.
Bereskin & Parr
Wiesemann Bruce O.
LandOfFree
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