Patent ID: 6769462
Filing Date: 2004-08-03
Classification: B01F,B05B,B29B

Abstract:
A dispensing apparatus comprising:(1) a plurality of recirculating systems wherein each said recirculating system comprises a reservoir containing a dispersant, a closed loop of a tubing connected to said reservoir, pumping means positioned in said loop for recirculating said dispersant to and from said reservoir at an elevated pressure, and a dispersant dispenser positioned in said loop; (2) a frame assembly comprising: (a) a dispenser actuator assembly for actuating said dispersant dispenser, said assembly positioned above a platform having a weighing scale positioned thereon; (b) a movable table positioned between said dispenser actuator assembly and said weighing scale, said table having said dispersant dispensers of said plurality of recirculating systems positioned thereon; (c) a pneumatic linear positioning system for moving said movable table in X and Y directions; and (3) a controller comprising: (a) means for retrieving a recipe for a composition from a database, said recipe comprising predetermined quantities of said dispersants, which when mixed together result in said composition; (b) means for signaling said pneumatic linear positioning system to move, upon processing an address location signal from a processor, said table for engaging said actuator assembly with one of said dispersant dispensers selected in accordance with said recipe; (c) means for actuating said dispenser actuator assembly to open or to shut, upon processing a nozzle control signal from said processor, a nozzle on said selected dispersant dispenser to gravimetrically dispense said dispersant into a container placed on said weighing scale; and (d) means for generating a weight monitoring signal from said weighing scale to direct said processor to shut off said nozzle on said selected dispersant dispenser once an amount of said dispersant determined in accordance with said recipe is dispensed into said container.