GB735606A - Improvements in or relating to liquid treating apparatus - Google Patents

Abstract

735,606. Purifying liquids. WARD, S. T. Aug. 24, 1953, No. 23334/53. Class 46. A flexible-walled container for liquid such as water to be demineralized has an opening to which is detachably connected the inlet opening of a cartridge for holding a mass of ion-exchange resins, the cartridge having an outlet opening for treated liquid. A bottle 12, Fig. 1, of flexible, preferably translucent, material such as polyethylene has secured in its neck by a press fit or a screw-thread connection a cartridge 19, also preferably translucent, containing ionexchange resins, preferably incorporating a dye which changes colour on exhaustion of the material. Non-return valves 16 and 29 to permit entry of air and prevent return of treated liquid to the bottle respectively may be provided. The resin is preferably packed between beds 25, 26 of fibrous material such asglass wool. A perforate baffle 31, Fig. 2, may be incorporated to ensure uniform permeation of the cartridge contents, in which case the lower bed of fibrous material may be located at 34. The wall of the baffle 31 may alternatively consist of inert mesh. In use the apparatus is inverted, whereupon treated liquid issues from a nozzle 22. The flow may be assisted by squeezing the bottle.