Liquid purification or separation – Flow – fluid pressure or material level – responsive – Check valve
Patent
1986-05-07
1988-10-25
Cintins, Ivars
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Check valve
210206, 210209, C02F 150
Patent
active
047801972
ABSTRACT:
A filter and chemical dispenser combination for filtering and chemically treating water to be added to a body of water includes a liquid inlet, a liquid outlet, and a flow passage between the inlet and the outlet. A filter element is positioned in the flow passage between the inlet and the outlet extending in a longitudinal direction and having a hollow interior. Means are provided in the interior of the filter element and in the flow passage for supporting a chemical. In a further embodiment of the invention, a chemical dispenser is provided for chemically treating a body of water wherein the dispenser includes an inlet for pressurized liquid and an outlet for liquid from the inlet. A flow passage is between the inlet and the outlet. A chemical chamber is provided in the flow passage between the inlet and the outlet for forming a compressible gas pocket. The chamber includes a base for supporting the chemical. The pocket-forming means has a first aperture for allowing liquid from the inlet into the pocket-forming chamber, and a second aperture for passing liquid out of the chamber.
REFERENCES:
patent: 3677711 (1972-07-01), Bond
patent: 3899425 (1975-08-01), Lewis
patent: 4210624 (1980-07-01), Price
patent: 4217331 (1980-08-01), Schaub
Product Brochure: "Rainbow Lifegard Dynamic Series Spa/Pool in Line Cartridge Filter", Rainbow Lifegard Products, Inc., DBA Rainbow Plastics, 1985.
Cintins Ivars
Rainbow Lifegard Products, Inc.
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