Patent application number | Description | Published |
20080282749 | Washing machine having water softening device - A washing machine having a water softening device which improves the solubility of a detergent and a water softening performance concurrently. The washing machine includes a tub; a water supply device for supplying water to the tub; a detergent supply device for supplying a detergent to the tub; and a water softening device for softening the water. The water softening device is disposed such that the water supplied from the water supply device can be mixed with the detergent supplied from the detergent supply device and then the water mixed with the detergent can be supplied to the water softening device. | 11-20-2008 |
20080289371 | Water softener and washing machine having the same - A water softener which uses ion exchange resins to soften water and a washing machine having the same are disclosed. The water softener and the washing machine having the same include an ion exchange unit including ion exchange resins therein, the ion exchange unit including a first ion exchange unit and a second ion exchange unit which alternately perform softening of water and regeneration of the ion exchange resins. Since any one of the first ion exchange unit and the second ion exchange unit performs softening of water and the other one thereof performs regeneration of the ion exchange resins, it is possible to continuously supply soft water. | 11-27-2008 |
20090107842 | Method for manufacturing polyimide-based carbon nanofiber electrode and/or carbon nanotube composite electrode and CDI apparatus using the electrode - A method to manufacture a carbon fiber electrode comprises synthesizing polyamic acid (PAA) as a polyimide (PI) precursor from pryomellitic dian hydride (PMDA) and oxydianiline (ODA) as monomers and triethylamine (TEA) as a catalyst, adding dimethylformamide (DMF) to the polyamic acid (PAA) solution to prepare a spinning solution and subjecting the spinning solution to electrostatic spinning at a high voltage to obtain a PAA nanofiber paper, converting the PAA nanofiber paper into a polyimide (PI) nanofiber paper by heating, and converting the polyimide (PI) nanofiber paper into a carbon nanofiber (CNF) paper by heating under an Ar atmosphere. Also, the method to manufacture a polyimide carbon nanofiber electrode and/or a carbon nanotube composite electrode may utilize carbon nanofibers having diameters that are lessened by optimizing electrostatic spinning in order to improve spinnability. | 04-30-2009 |
20090218227 | DEIONIZATION APPARATUS AND METHOD OF MANUFACTURING THE SAME - A capacitive deionization apparatus, wherein a spacing distance between electrodes of cells is uniformly maintained and a flow in the cells is optimized to improve efficiency of the deionization apparatus and contact resistance between a carbon material and a collector is reduce to improve electrical conductivity, is disclosed. The capacitive deionization apparatus which includes a plurality of electrode modules, each having a collector and electrodes disposed on upper and lower surfaces of the collector to electrically and chemically remove ions from liquid, includes a plurality of plates made of a stiff material are alternately stacked with the electrode modules such that the electrode modules are spaced at specific intervals, wherein the collector and the electrodes are pressed by a pair of adjacent plates among the plurality of plates to maintain a contact therebetween. | 09-03-2009 |
20100071874 | Food heat-exchange device and refrigerator having the same - Disclosed are a food heat-exchange device capable of rapidly freezing food stored in a refrigerator or thawing frozen food in the refrigerator, and a refrigerator having the same. The refrigerator includes a body in which a storage compartment is defined, and the food heat-exchange device is mounted in the storage compartment, to enable thawing or rapid-freezing of food. The food heat-exchange device includes a heat-exchange plate, which is provided at a surface thereof with a contact portion to come into contact with food and at the other surface thereof with a pin to facilitate heat-exchange. | 03-25-2010 |
20100155261 | Deionization apparatus and method of controlling the same - A deionization apparatus for regenerating electrodes using vibration and a method of controlling the same. The deionization apparatus includes electrodes to which ions contained in a fluid are absorbed, and a piezoelectric element to separate the ions absorbed to the electrodes by vibration. Since the ions absorbed to the electrodes are separated using mechanical energy generated by the piezoelectric element, it may be possible to more rapidly perform regeneration of the electrodes. | 06-24-2010 |