Abstract: Disclosed are a composition for the prophylaxis of influenza viral infection comprising a sumac extract, an air filter coated with the same, and an air cleaner comprising the air filter. Having high inhibitory activity against influenza virus, the composition comprising a sumac extract can be applied to the prevention of influenza viral infection. Also, the filter coated with the composition can remove influenza viruses from the air so that it can be employed in an air cleaner for the prophylaxis of influenza viral infection.

Abstract: The present invention relates to a robot cleaner system and a method of controlling a robot cleaner. When cleaning start information is received, a control unit (17) of the robot cleaner scans one cleaning area (30), thus calculating a cleaning time. The control unit performs cleaning of the cleaning area. When a signal transmitted from a transmission device (20) is received, the control unit detects which transmitter transmitted the signal. The control unit determines whether a time for which a signal transmitted from a same transmitter has been received is equal to or longer than a preset period. If the time is shorter than the preset period, the control unit continuously performs cleaning. If the time for which the transmitted signal has been received is equal to or longer than the preset period, the control unit moves the robot cleaner until a signal transmitted from another transmitter is received.

Abstract: Disclosed is a filter assembly including a filter cartridge including a housing, a filter provided inside the housing, and a cartridge connection portion provided at an upper portion of the housing, a head portion including a head connection portion to be coupled to the cartridge connection portion so that the filter cartridge can be attached and detached, a water inlet which introduces water to the filter cartridge, and a water outlet which discharges the water filtered by the filter cartridge, the head portion including a filter attaching and detaching lever which is movable between a first position, at which the head connection portion and the filter cartridge connection portion are coupled to each other, and a second position, at which the head connection portion and the filter cartridge connection portion are separated from each other, and can be supported by the head portion.

Abstract: Provided is a device for supplying warm water and a method thereof. The device for supplying warm water includes a first heater configured to have a first set capacity and heating received water, a second heater configured to have a second set capacity greater than the first set capacity and heating received water, and a control part calculating heater driving cycles of the first heater and the second heater according to a set water temperature, and driving the first heater and the second heater according to the heater driving cycles. The control part calculates the heater driving cycle of the first heater by using a phase control method, and calculates the heater driving cycle of the second heater by using a zero-crossing control method.

Abstract: An exhaust valve apparatus and a drier of a food treatment system having the exhaust valve apparatus are disclosed. The drier includes a drum having an input port and a discharge port. A stirring screw is rotatably disposed in inner space of the drum, and includes rotary blades for stirring and crushing food waste put into the drum and a rotating shaft for supporting the rotary blades. A power supply unit is provided on a surface of the drum and provides power to the stirring screw to rotate the stirring screw. A heater is provided on the outer surface of a drum body and provides high temperature heat to the inner space of the drum when electric power is applied to the heater, thus drying the food waste. An exhaust apparatus is mounted to the lower surface of the discharge port and controls the discharge port.

Abstract: An air cleaner having a manipulator is disclosed. The manipulator (200) includes a rotary manipulation unit (300), which is provided so as to be movable between a first position, at which the rotary manipulation unit is retracted into the air cleaner, and a second position, to which the rotary manipulation unit is extracted from the air cleaner to enable a user to manipulate the rotary manipulation unit. The manipulator further includes a lift unit (400), which is installed in the air cleaner to move the rotary manipulation unit between the first position and the second position. In the present invention, the manipulator can control several functions of the air cleaner obviating the need for having several control buttons, thus being more convenient for a user. Furthermore, the present invention can prevent water from permeating a PCB mounted in the rot ary manipulation unit, thus preventing malfunction of the encoder unit.

Abstract: There is provided a flow system for bidets capable of feeding room-temperature raw water to a sterilizer. The flow system for bidets comprises a flow path change valve changing flow paths so that raw water flowing from a raw water supply unit flows through at least one out of a plurality of flow paths; a sterilizer coupled to an outlet side of the flow path change valve to generate nozzle-cleaning water containing an antibacterial and/or disinfectant substance from the fed raw water; a heating member coupled to the outlet side of the flow path change valve to heat the fed raw water; and a nozzle unit coupled to the sterilizer and the heating member, the nozzle unit having at least one nozzle installed therein for feeding nozzle-cleaning water or hot water. The flow system for bidets may be useful to improve the use efficiency of hot water and cold water since the raw water of adequate temperature may be feed to components of a bidet by disposing a flow path change valve in the front end of a heating member.

Abstract: There is provided an ice maker and a water purifier having the same capable of effectively making ice using two water trays. The water purifier having an ice maker includes a water tray member comprising an ice-making water tray holding ice-making raw water to make ice using an ice-making unit, and an auxiliary water tray holding ice-making raw water remaining in the ice-making water tray in the course of cooling the ice-making raw water by means of the ice-making unit and removing the ice-making raw water from the ice-making water tray; an ice reservoir storing ice made in the ice-making unit; a cold water storage tank cooling water held therein using the ice made in the ice-making unit; and a guide member guiding the ice made in the ice-making unit so that the ice is selectively fed to either the ice reservoir or the cold water storage tank.

Abstract: A drier for a food waste disposal system. A hollow drum has a charge port and a discharge port for food waste. An agitating screw has a rotating thread which is rotatably disposed in an inner space of the drum and agitates and crushes the food waste, and a rotating shaft around which the rotating thread is disposed. A motor is installed on a first end of the drum, and provides a rotating force to the agitating screw. A crusher has a crush plate installed on a second end of the drum and a plurality of inclined crushing blades arranged radially, and a crush plate support installed around an upper portion of the crush plate. A heater is installed on an outer surface of the drum, and when powered provides high-temperature heat for the inner space of the drum, drying the food waste.

Abstract: An apparatus for controlling a rotational movement of an opening and closing unit by using a counter electromotive force of a motor includes: a motor driving unit that drives an electric damper by driving a motor to operate the opening and closing unit; a position detecting unit that detects the position of the opening and closing unit operated by the motor driving unit; a power intercepting unit that receives a signal of detecting the position of the opening and closing unit from the position detecting unit, and cuts off power if it determines that the opening and closing unit is at a pre-set position based on the received position detect signal; and a counter electromotive force generating unit that generates a counter electromotive force of the motor when the power intercepting unit cuts off power.

Abstract: Disclosed herein is an apparatus and method of producing regenerative water. The apparatus includes a main body, a basket, a regenerative substance block and an on/off valve. The main body has a water inlet port through which raw water is supplied into the main body, a water outlet port through which regenerative water is discharged out of the main body, and a drain port which drains an excess of raw water or regenerative water. The basket is provided in the main body. The regenerative substance block is contained in the basket and dissolved by the raw water. The on/off valve is provided on the water outlet port. The raw water dissolves the regenerative substance block for a predetermined duration. When the on/off valve is opened, the produced regenerative water is supplied through the water outlet port into a soft water tank.

Abstract: A sterilizing water dispensing apparatus, and a bidet and toilet seat having the same are disclosed. The sterilizing water dispensing apparatus includes: an inlet to which sterilizing water is introduced; a cylindrical vortex production chamber that generates a vortex in the sterilizing water introduced through the inlet; and a dispensing hole disposed at the center of the bottom of the vortex production chamber and dispensing the vortex-produced sterilizing water in the vortex production chamber to an inner wall of the toilet. Because sterilizing water is dispensed in the form of fine particles with a relatively large surface area, the sterilizing water is brought into contact with a larger area of an inner wall of a toilet, so a sterilizing effect can be enhanced with a small quantity of sterilizing water.

Abstract: The present invention provides a transfer unit having a transfer rotor and a food waste treatment apparatus using the transfer unit. The transfer unit includes the transfer rotor, a housing and a sieve. The transfer rotor includes a rotor body, and at least one blade provided on the circumferential outer surface of the rotor body. The housing has a hollow container shape and contains the transfer rotor therein such that the transfer rotor is rotatable without interference from the housing. The housing is inclined at a predetermined angle with respect to the horizontal plane. The sieve is provided in the housing to guide discharge of sewage from food waste. The sieve is disposed in the lower portion of the housing to drain the sewage generated from the food waste to the outside of the housing.

Abstract: Disclosed are a cold water tank and a water treatment apparatus. The cold water tank includes a tank body, a water inlet pipe provided at the tank body to convey water into the tank body, a water outlet pipe provided at the tank body to convey the water out of the tank body, and including an air vent hole, and a floating member movably provided at the water outlet pipe to block the air vent hole when the water filling the tank body reaches a height of the air vent hole. The water in the upper portion of the tank body is prevented from passing through the air vent hole and draining through the water outlet pipe, thereby preventing the cooler water in the lower portion from mixing with the hotter water in the upper portion. Only the cooler water in the lower portion can be supplied to a user.