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Water Softener Patent
 

Water softener

Disclosed is a water softener capable of producing soft water at various temperatures and facilitating the regeneration of an ion exchange resin thereof. The water softener includes a water softening tank in which an internal region containing therein the ion exchange resin is partitioned into a plurality of water softening regions which are individually assigned into a predetermined temperature; a regeneration tank integrated with the water softening tank into a single body and containing the regeneration material of the ion exchange resin; a cold/hot control valve to supply raw water to a selected one of the plurality of water softening regions according to the temperature of the raw water to rapidly supply the soft water at a desired temperature to a user, and a regeneration valve to facilitate the periodic regeneration of the ion exchange resin through a simple manual operation.

Washing appliance water softener

A water softener particularly for use in a dishwasher. The water softener is located in the dishwasher water supply (238) between the primary supply valve and the wash chamber. The softener includes a resin container (207) with an ion exchange resin (290). Water supplied to the wash chamber optionally passes through the resin container (207). Regenerating brine is developed in a brine container (203). The brine container (203) is supplied manually with solid salt (270) and water diverted into the container from the main supply at an air break (201). In the regenerating cycle brine is delivered from the brine container (203) to the resin container (207) by a pump (206). The duty cycle of the pump (206) determines the degree of regeneration of the resin (290).

System for the purification and reuse of spent brine in a water softener

System and method for purifying and recycling spent brine in a water softener are provided. The system may be made up of a cation exchange resin tank fluidly coupled for passing spent brine comprising monovalent and divalent ions. A fluid mixer valve is coupled to the resin tank and to a water tank to dilute the spent brine to a desired concentration of a regenerant salt, e.g., NaCl. An ion-separation device is fluidly coupled to the fluid mixer valve to receive the diluted spent brine and separate the diluted spent brine into first and second streams. The first of the streams comprises monovalent ions and the second of the streams comprises divalent ions.

Point-of-use water softener

A portable point-of-use water softener. Settings of a valve put the water softener into three different modes: an "off" mode that excludes water from the water softener, a water softening mode, and a regeneration mode. In water softening mode, water passes from a source of the water through a water softening element to a sink for the softened water. A plurality of water softening elements operate in parallel in water softening mode to increase the flow of water through the water softener. In regeneration mode, a brine solution flows through the water softening element. The solution is made in a chamber in which water from the source flows at a controlled rate over salt tablets and from there through the water softening elements. The number of salt tablets determines the percent of salt in the brine. The valve includes a number of tubes which connect the components as required for the three modes. The valve selects a mode by pinching tubes as required by the mode. The valve uses a cam with a handle to pinch the tubes, and a position of the handle corresponds to each of the modes.


Method and apparatus for recycling sewage sludge utilizing spent water-softener lime
Washing appliance water softener

PUB. APP. NO. Title
45 20050235821 Water softener
46 20050224100 Washing appliance water softener
47 20050126999 System for the purification and reuse of spent brine in a water softener
48 20050072720 Point-of-use water softener
49 20050000902 System for reclaiming water softener brine waste
50 20040177654 Dishwasher having a water softener with a salt container located in the dishwasher door
51 20040144702 Controller for salt dosage for a water softener and method of regenerating a water softener
52 20040104175 Controller and method for controlling regeneration of a water softener
53 20040079710 Method and apparatus for recycling sewage sludge utilizing spent water-softener lime
54 20030188999 Water softener
55 20030132164 Efficiency mode for water softener
56 20030116492 Modular water softener system
57 20020108909 Ion exchange water softener and method
58 20010054966 System for monitoring the status of a water softener
59 20010039465 Computer control unit for the operation of a water softener
60 20010023841 Controller for salt dosage for a water softener and method of regenerating a water softener

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