B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/59
B01D 33/073 (2006.01) B30B 9/24 (2006.01) B01D 33/46 (2006.01) B01D 33/60 (2006.01) B01D 33/64 (2006.01)
Patent
CA 1233755
US-2012 ABSTRACT OF THE DISCLOSURE A vacuum expressor device for a rotary drum vacuum filter comprising an impermeable press belt membrane mounted on a roll assembly atop the filter and adapted to be drawn into contact with the filter cake by the vacuum within the filter drum during the filtration cycle with the roll assembly mounted on the filter by a plurality of pneumatic actuators for providing means for moving the press belt towards or away from the filter drum.
454795
Kosonen Vaino J.
Spilkin Gordon
Willus Charles A.
Dorr-Oliver Incorporated
Gowling Lafleur Henderson Llp
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