Patent ID: 8002116
Filing Date: 2011-08-23
Classification: B07B

Abstract:
1. A multi-deck vibrating stackable material screening unit comprising: a. a plurality of screen frames, wherein each screen frame comprises: b. a plurality of air operated isolation mounts, wherein two air operated isolation mounts are each disposed on one of the compression cross members; c. a plurality of mounting blocks, wherein each mounting block is fastened to one of the air operated isolation mounts; d. a vibrating screen tensioner for each screen frame comprising at least two ribs connected to one another by a body, wherein a first flange is connected to one of the at least two ribs and a second flange is connected to the other of the at least two ribs, wherein the body comprises at least one perforation, wherein a vibrator motor is connected to the body, wherein the vibrating screen tensioner is disposed over and connected to the mounting blocks over all compression cross members, wherein the body has a length longer than its width and the length extends from the feed inlet to the discharge spout, and wherein the vibrating screen tensioner is parallel to a direction of material flow; e. an upper cover support extending from the first side wall to the second side wall adjacent the feed inlet for each screen frame; f. a lower cover support extending from the first side wall to the second side wall adjacent the discharge spout for each screen frame; g. a screen cloth disposed within each screen frame beneath the upper and lower cover supports; h. a first relocatable removable detachable lifting mechanism secured to the first side wall and a second relocatable removable detachable lifting mechanism secured to the second side wall opposite the first side wall for raising a first screen frame of the plurality of screen frames apart from a second screen frame of the plurality of screen frames; and i. at least two clevis assemblies disposed on the first and second sides walls of the first screen frame for hingedly connecting to at least two tang assemblies on a first and second side walls of the second screen frame for holding the first screen frame to the second screen frame, wherein the vibrator motor in each screen frame vibrates allowing particulate sized to fall through the screen cloth of the first screen frame to the second screen frame, while discharging a predetermined diameter particulate through the discharge spout to a discharge hopper.