Patent ID: 9156013
Filing Date: 2015-10-13
Classification: B01F,E01H,G05D

Abstract:
1. A solution making apparatus that combines a solvent and a chemical comprising: a first container that receives said solvent; a second container that receives a solution of said solvent and said chemical; a third location that receives a solution of said solvent and said chemical; a concentration sensor that outputs a signal; a first processor that determines a concentration of said solution based on said signal; a first return conduit that returns said solution from said second container to said first container when a concentration of said solution is below a desired concentration; a second return conduit that returns said solution from said second container to said third location when a concentration of said solution is above a desired concentration, said second return conduit including an inlet through which additional solvent is added to said solution; an outlet conduit that outputs said solution having said desired concentration; an additive container holding an additive; a mixing location at which said additive is mixed with said solution, wherein the mixing location is selected from the group consisting of the additive container, a third container, and a conduit; a controller that determines if said additive and said solution can be mixed to one of a desired concentration and desired volume and controls a mixing of said additive and said solution to create at least one of said desired concentration and said desired volume, wherein the controller is selected from the group consisting of the first processor and a second processor; wherein said third location is selected from the group consisting of the first container and the outlet conduit.