Patent ID: 6726065
Filing Date: 2004-04-27
Classification: G01F

Abstract:
A modular colorant dispenser, said modular dispenser comprising:at least one colorant module, said module comprising: a canister dimensioned to hold said colorant, wherein said canister has an agitator and a fin; a pump module, said pump module connected to said canister, said pump module comprising: a stepper motor; a bearing shaft rotatably connected to said stepper motor; a pump body receiving said bearing shaft, said pump body having a chamber through which said colorant flows and said pump body having an industrial hard coat; a seal between said bearing shaft and said pump body, whereby said seal prevent said colorant from leaking out of said bearing shaft; twin impellers rotated by said bearing shaft disposed in said chamber; wherein said stepper motor controls rotation of said bearing shaft and said twin impellers, and wherein said colorant flows through said colorant pump propelled by said twin impellers; an inlet line connecting said canister to said pump, wherein said colorant is pumped out of said canister and into said pump body through said inlet line, said inlet line having an inlet fitting to securably attach said inlet line to said pump body; an outlet line, wherein said colorant is pumped out of said pump body through said outlet line; a valve connected to said colorant pump for dispensing said colorant; a nozzle connected to said valve to direct said colorant to a container; and a return line connecting said valve to said canister whereby excess of said colorant is returned to said canister through said return line; wherein said at least one nozzle of at least one colorant module is connected to a nozzle assembly, wherein said nozzle assembly dispenses colorant to the container.