Patent ID: 6572255
Filing Date: 2003-06-03
Classification: B01F,G01F,G01N,G05D

Abstract:
An apparatus for providing a solution of a diluent and a prescribed concentration of a component diluted therein comprising:a solution mixing container to which said component and said diluent are supplied, and from which said solution is controllably deliverable to a solution delivery port; a component storage container, in which said component is stored; a first fluid transport path, through which said component stored in said component storage container is controllably supplied from said component storage container to said solution mixing container; a component recirculation path through which said component stored in said component storage container is controllably recirculated from and back into said component storage container so as to maintain uniformity of said component in said component storage container; a second fluid transport path through which said diluent is controllably supplied from a source of said diluent to said solution mixing container; a second fluid transport path purger, which controllably purges said second fluid transport path of potential contaminates prior to said second fluid transport path controllably supplying said diluent to said solution mixing container; a third fluid transport path coupled to said solution mixing container and to said solution delivery port, and including a mixed solution recirculation path through which contents of said solution mixing container are controllably recirculated from and back into said solution mixing container, and a mixed solution extraction path through which contents of said solution mixing container are controllably delivered to said solution delivery port; and a controller which controls the operations of said first fluid transport path, said second fluid transport path, said second fluid transport path purger, said mixed solution recirculation path and said mixed solution extraction path in accordance with the conductivity of the contents of said solution mixing container, to realize therein said solution of said diluent and said prescribed concentration of diluted component.