Chlorination module for cartridge filter unit
First Claim
1. A filter and chlorinator assembly for use with swimming pools, spas and the like having a water circulation system including a pump, the assembly comprising(a) a filter housing defining an elongate filter chamber,(b) an elongate axially hollow radial-flow filter element in the housing,(c) water flow inlet and outlet openings to and from the housing at an end of the housing,(d) flow directing means associated with the inlet and outlet openings for directing at least a portion of the flow of water entering the inlet opening to the outer portions of the filter chamber for flow radially inwardly of the filter to a central space in the housing and to the outlet opening for flow from the housing,(e) a chlorinator assembly within the central space of the filter element comprising(1) a tubular body defining therein a cavity into which can be placed a quantity of a solid, water-soluble source of chlorine ions,(2) a flow port between the cavity to the central space at a lower end of the body,(3) other flow means between the interior of the cavity and the exterior of the body,(4) flow regulating means associated with the outer portions of the filter chamber and with one of the flow port and the other flow means so arranged that upon flow of water to the housing inlet opening, a regulated water flow occurs through the cavity and from the cavity to the space and thence to the outlet opening concurrently with the flow of water radially through the filter to the space, and(5) a check valve associated with one of the flow port and the other flow means for preventing reverse flow therethrough.
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Accused Products
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.
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Citations
27 Claims
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1. A filter and chlorinator assembly for use with swimming pools, spas and the like having a water circulation system including a pump, the assembly comprising
(a) a filter housing defining an elongate filter chamber, (b) an elongate axially hollow radial-flow filter element in the housing, (c) water flow inlet and outlet openings to and from the housing at an end of the housing, (d) flow directing means associated with the inlet and outlet openings for directing at least a portion of the flow of water entering the inlet opening to the outer portions of the filter chamber for flow radially inwardly of the filter to a central space in the housing and to the outlet opening for flow from the housing, (e) a chlorinator assembly within the central space of the filter element comprising (1) a tubular body defining therein a cavity into which can be placed a quantity of a solid, water-soluble source of chlorine ions, (2) a flow port between the cavity to the central space at a lower end of the body, (3) other flow means between the interior of the cavity and the exterior of the body, (4) flow regulating means associated with the outer portions of the filter chamber and with one of the flow port and the other flow means so arranged that upon flow of water to the housing inlet opening, a regulated water flow occurs through the cavity and from the cavity to the space and thence to the outlet opening concurrently with the flow of water radially through the filter to the space, and (5) a check valve associated with one of the flow port and the other flow means for preventing reverse flow therethrough.
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17. An integrated liquid filter and chemical dispenser comprising:
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a filter housing having a liquid inlet thereto and a liquid outlet; a cylindrical, axially hollow, radial flow filter assembly in the housing; flow directing means for defining a liquid flow path in the housing from the inlet to the outlet, the flow path comprising first and second flow passages arranged in parallel flow relation, the first passage being radially through the filter and the second passage being into the filter interior other than through the filter; and a chemical dispenser disposed along the second passage essentially wholly within the axial extent of the interior of the filter and having liquid ingress and egress means to and from a chamber therein in which a chemical to be dispensed can be placed for addition to a liquid flowing into and out of the chamber. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A water filter assembly for use with spas and the like having a molded deck defining a well therein, the assembly comprising:
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a cylindrical housing having an open upper end and inlet and outlet water flow openings at its lower end in association with means for directing at least a portion of water entering the inlet opening to the outer portions of a filter chamber within the housing and for routing water from a central part of the filter chamber to the outlet opening; means in the chamber for supporting in a selected position an elongate, axially hollow filter cartirdge for flow of water therethrough from the outer portions of the filter chamber to the central part thereof; means defined by and cooperable with an outer portion of the housing proximate its upper end for mounting the housing in an opening in a spa deck well; a housing closure member removably and sealably coupleable to the upper end of the housing; the housing, filter cartridge and closure member being cooperatively defined for flow of some water from the outer portions of the filter chamber to a cavity defined in a chlorinator assembly carried by the closure member to be disposed in the axial hollow of the cartridge upon coupling of the closure member to the housing and including water flow means for directing water to the cartridge axial hollow via a chlorination chamber in the chlorination assembly in which a quantity of soluble chlorination ion source material can be placed. - View Dependent Claims (26, 27)
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Specification