Patent ID: 6298871
Filing Date: 2001-10-09
Classification: B01F,C02F,Y10T

Abstract:
Apparatus for delivering a solution of solid chemical material, comprising:(a) a housing having a base, side walls extending upwardly from said base and a closed upper end, said base and side walls defining a cavity;(b) an elongated substantially vertical hollow container within said cavity, said container having side walls, the bottom of which are adjacent to the base of said housing and which are spaced from the side walls of the housing, thereby defining a collection zone defined by the base of the housing, the outside walls of the container, the inside side walls of the housing and the closed upper end of the housing, the side walls of the container extending through and above the closed upper end of the housing, and having a plurality of perforations arrayed in its lower portion, thereby to provide liquid communication between the inside of the container and the collection zone;(c) at least one canister having a base and side walls for retaining solid chemical material therein, said canister having a plurality of perforations in its lower portion, said perforations in the canister being such as to expose only the lower portion of solid chemical material contained therein, said canister being interposed within the container such that the base of the canister is near the perforations in the lower portion of the container, the base of the canister, the base of the housing and a lower portion of the inside side walls of the container defining a chamber;(d) means to deliver liquid in which the solid chemical material is soluble to the chamber; and(e) means for removing liquid containing said chemical material from the collection zone.