Patent application number | Description | Published |
20100258492 | FILTERING MEMBRANE MODULE AND FILTERING APPARATUS HAVING THE SAME - A filtering membrane module and a filtering apparatus having the same, which is capable of remarkably reducing a vibration of filtering membrane module during an aeration process for a maintenance cleaning of filtering membrane, and preventing a crack from occurring in the filtering membrane module by the vibration, wherein the filtering membrane module comprises a filtering membrane; a header, to which the filtering membrane is potted, including a first lateral side and a second lateral side opposite to the first lateral side; a first coupling unit provided at the first lateral side; and a second coupling unit provided at the second lateral side. | 10-14-2010 |
20130284656 | SYSTEM AND METHOD FOR INSTALLING FILTERING MEMBRANE MODULE TO FRAME STRUCTURE - A system and method for installing a large-sized filtering membrane module to a frame structure with easiness is disclosed, wherein the system comprises a frame structure to which the filtering membrane module is to be installed; and an installing apparatus for installing the filtering membrane module to the frame structure, wherein the installing apparatus comprises a horizontal rod parallel to an inserting direction of the filtering membrane module into the frame structure; and a moving unit movable toward the frame structure along the horizontal rod while supporting the filtering membrane module. | 10-31-2013 |
20150144545 | FILTERING MEMBRANE MODULE AND FILTERING APPARATUS HAVING THE SAME - A filtering membrane module and a filtering apparatus having the same, which is capable of remarkably reducing a vibration of filtering membrane module during an aeration process for a maintenance cleaning of filtering membrane, and preventing a crack from occurring in the filtering membrane module by the vibration, wherein the filtering membrane module comprises a filtering membrane; a header, to which the filtering membrane is potted, including a first lateral side and a second lateral side opposite to the first lateral side; a first coupling unit provided at the first lateral side; and a second coupling unit provided at the second lateral side. | 05-28-2015 |
Patent application number | Description | Published |
20090021331 | STEP ATTENUATOR - There is provided a step attenuator having two Pi-type attenuators and one bridged-T type attenuator that share some resistors. The step attenuator is used to prevent a reduction in frequency range caused by use of MOS transistors and reduce attenuation of signal power and frequency band by the MOS transistors, thereby obtaining a low attenuation value and reducing input and output mismatch. | 01-22-2009 |
20090051440 | ACTIVE BALUN CIRCUIT - There is provided an active balun circuit including: a load circuit unit including a first and a second load; a differential amplifying unit including a first amplifying unit connected to the first load, and a second amplifying unit connected to the second load and forming a differential amplifying unit together with the first amplifying unit, the differential amplifying unit differentially amplifying an input signal, and outputting first and second output signals out-of-phase with each other through first and second output terminals, respectively; a current source connected between a ground and a common connection node of the first and second amplifying units, and maintaining a constant amount of current flowing through the differential amplifying unit; and a compensation amplifying unit amplifying the input signal supplied through the input terminal, transmitting the amplified input signal to the second amplifying unit, and rejecting common mode noise of the differential amplifying unit. | 02-26-2009 |
20130057349 | CMOS POWER AMPLIFIER - There is provided a complementary metal oxide semiconductor (CMOS) power amplifier including: a load unit connected between an operating voltage supply terminal and an output terminal; an amplifying unit formed as a cascode structure between the load unit and a ground, amplifying a power of an input signal input through an input terminal and outputting the amplified signal through an output terminal; and a threshold voltage control unit varying a threshold voltage of the amplifying unit according to a magnitude of the input signal input through the input terminal. | 03-07-2013 |
Patent application number | Description | Published |
20140000852 | INDOOR UNIT OF AIR CONDITIONER AND METHOD OF CONTROLLING THE AIR CONDITIONER | 01-02-2014 |
20140053591 | AIR CONDITIONER - An air conditioner includes a housing including a front panel provided with at least one opening, and a rear lower panel disposed at a rear side of the front panel, at least one discharge outlet exposed to a front of the front panel through the opening, at least one suction inlet formed in the housing, at least one heat exchanger to exchange heat with external air through the suction inlet, at least mixed-flow fan rotatably disposed between the heat exchanger and the discharge outlet to suction the air having exchanged heat with the heat exchanger and discharge the air through the discharge outlet, and a drain panel disposed at a lower portion of the heat exchanger to collect condensate produced during heat exchange, and integrated with the rear panel through injection molding. | 02-27-2014 |
20150192323 | APPARATUS FOR OPENING AND CLOSING DISCHARGE PORT AND AIR CONDITIONER HAVING THE SAME - An air conditioner including an opening and closing apparatus configured to open/close a discharge port for discharging air into an indoor space, the opening and closing apparatus includes a plurality of covers provided with a guide unit, a guide plate provided with a spiral guide hole alternately formed with a guide hole having a first section and a second section, and a rail plate extended in a radial direction and having a plurality of rails through which the guide unit is inserted. When the guide plate is rotated, the plurality of covers are moved in a radial direction while having a time interval with respect to the adjacent cover as to open/close the discharge port. | 07-09-2015 |