Abstract: A handy-stick type vacuum cleaner is disclosed. The disclosed vacuum cleaner comprises: a first part for collecting dust included in air suctioned to the inside through a suction hole; and a second part including a suction motor and a handle, wherein the first and second parts are hinge-connected so as to communicate with each other.

Abstract: A handy-stick type vacuum cleaner is disclosed. The disclosed vacuum cleaner comprises: a first part for collecting dust included in air suctioned to the inside through a suction hole; and a second part including a suction motor and a handle, wherein the first and second parts are hinge-connected so as to communicate with each other.

Abstract: A robot cleaner is provided. The robot cleaner includes a main body, a suction motor provided in the main body to generate a suction force, and a dust collector removably coupled to the main body to collect dust contained in air suctioned by the suction motor. The dust collector includes a first chamber to which the air, which is suctioned into the main body by the suction motor, is introduced, the first chamber including a filter to filter out dust in the suctioned air, and a second chamber arranged side by side with the first chamber, the second chamber including a connection port to which air, which is filtered b the filter in the first chamber, is introduced, and a cyclone dust separator to separate dust from the introduced air.

Abstract: A cleaning system, including a robot cleaner and a station are provided. The cleaning system includes a robot cleaner including a dust collector, the dust collector provided with a dust outlet, and an outlet door configured to open and close the dust outlet. The robot cleaner further includes a station including a lever device configured to open the outlet door and communicate with the dust collector when the lever device is pressed by the robot cleaner, and a collector configured to communicate with the lever device, and generate a suction force to suction dust collected in the dust collector.

Abstract: A robot cleaner is provided. The robot cleaner includes a main body, a suction motor provided in the main body to generate a suction force, and a dust collector removably coupled to the main body to collect dust contained in air suctioned by the suction motor. The dust collector includes a first chamber to which the air, which is suctioned into the main body by the suction motor, is introduced, the first chamber including a filter to filter out dust in the suctioned air, and a second chamber arranged side by side with the first chamber, the second chamber including a connection port to which air, which is filtered b the filter in the first chamber, is introduced, and a cyclone dust separator to separate dust from the introduced air.

Abstract: A cleaning system, including a robot cleaner and a station are provided. The cleaning system includes a robot cleaner including a dust collector, the dust collector provided with a dust outlet, and an outlet door configured to open and close the dust outlet. The robot cleaner further includes a station including a lever device configured to open the outlet door and communicate with the dust collector when the lever device is pressed by the robot cleaner, and a collector configured to communicate with the lever device, and generate a suction force to suction dust collected in the dust collector.

Abstract: A handy-stick type vacuum cleaner is disclosed. The disclosed vacuum cleaner comprises: a first part for collecting dust included in air suctioned to the inside through a suction hole; and a second part including a suction motor and a handle, wherein the first and second parts are hinge-connected so as to communicate with each other.

Abstract: A display drive chip includes an electrostatic discharge (ESD) protection circuit unit configured to protect a circuit from ESD, an output including output pins for ouputting an output signal from a circuit disposed in an electric circuit region located in a central part of the display drive chip, a main voltage metal line electrically connecting the ESD protection circuit unit and the output to each other in the electric circuit region, an auxiliary voltage metal line that is connected to the ESD protection circuit unit and is disposed in a region of the chip outside the perimeter of the electric circuit region, and connection metal lines electrically connect the auxiliary voltage metal line and the output pins to each other.

Abstract: Disclosed herein is a vacuum cleaner having an improved structure capable of removing hair and foreign substances wound around a drum brush. The vacuum cleaner includes a cleaner main body, a suction brush connected to the cleaner main body and including a suction channel configured to clean a surface to be cleaned by suction force, and a drum brush case provided to be detachable in a forward direction from the suction brush and configured to form an intake port connected to the suction channel.

Abstract: A display drive chip includes an electrostatic discharge (ESD) protection circuit unit configured to protect a circuit from ESD, an output including output pins for ouputting an output signal from a circuit disposed in an electric circuit region located in a central part of the display drive chip, a main voltage metal line electrically connecting the ESD protection circuit unit and the output to each other in the electric circuit region, an auxiliary voltage metal line that is connected to the ESD protection circuit unit and is disposed in a region of the chip outside the perimeter of the electric circuit region, and connection metal lines electrically connect the auxiliary voltage metal line and the output pins to each other.

Abstract: A vacuum cleaner includes a main body including a fan motor to generate suction force, a suction unit connected to the main body to suction foreign matter from a surface to be cleaned in a state of contacting the surface, a dust collector separatably mounted to the main body to separate and collect dust from air suctioned by the suction unit, and a wheel assembly to move the main body, wherein the wheel assembly includes frames provided at a lower part and left and right sides of the main body and wheels rotatably mounted to the frames provided at the left and right sides of the main body, each wheel having a negative camber angle.

Abstract: Disclosed herein is a vacuum cleaner having an improved structure capable of removing hair and foreign substances wound around a drum brush. The vacuum cleaner includes a cleaner main body, a suction brush connected to the cleaner main body and including a suction channel configured to clean a surface to be cleaned by suction force, and a drum brush case provided to be detachable in a forward direction from the suction brush and configured to form an intake port connected to the suction channel.

Abstract: A vacuum cleaner includes a main body including a fan motor to generate suction force, a suction unit connected to the main body to suction foreign matter from a surface to be cleaned in a state of contacting the surface, a dust collector separatably mounted to the main body to separate and collect dust from air suctioned by the suction unit, and a wheel assembly to move the main body, wherein the wheel assembly includes frames provided at a lower part and left and right sides of the main body and wheels rotatably mounted to the frames provided at the left and right sides of the main body, each wheel having a negative camber angle.

Abstract: A vacuum cleaner includes a main body including a fan motor to generate suction force, a suction unit connected to the main body to suction foreign matter from a surface to be cleaned in a state of contacting the surface, a dust collector separatably mounted to the main body to separate and collect dust from air suctioned by the suction unit, and a wheel assembly to move the main body, wherein the wheel assembly includes frames provided at a lower part and left and right sides of the main body and wheels rotatably mounted to the frames provided at the left and right sides of the main body, each wheel having a negative camber angle.

Abstract: A vacuum cleaner includes a main body including a fan motor to generate suction force, a suction unit connected to the main body to suction foreign matter from a surface to be cleaned in a state of contacting the surface, a dust collector separatably mounted to the main body to separate and collect dust from air suctioned by the suction unit, and a wheel assembly to move the main body, wherein the wheel assembly includes frames provided at a lower part and left and right sides of the main body and wheels rotatably mounted to the frames provided at the left and right sides of the main body, each wheel having a negative camber angle.

Abstract: The present invention is directed to a method for effectively separating HMX and RDX from HMX/RDX-included explosives, respectively, without using a harmful organic solvent, the method capable of respectively separating HMX and RDX from HMX/RDX-included explosives by selectively dissolving RDX included in explosives by using a difference between solubility parameters of HMX and RDX with respect to compressed dimethylether. The present invention is further directed to an apparatus for respectively separating HMX and RDX from HMX/RDX-included explosives comprising a dimethylether supplying unit, an explosive particle dissolving unit, and an explosive particle collecting unit.

Abstract: A steam vacuum cleaner, having a suction port assembly including a suction hole formed on a bottom surface thereof and a dust receptacle detachably attached to the suction port assembly; a pump disposed in the suction port assembly to suction dust-laden air from an object being cleaned and to transfer the dust laden air to the dust receptacle; a steam unit disposed on the suction port assembly; a floorcloth unit disposed on the suction port assembly to scrub the object using steam supplied from the steam unit; and a handle member hinged with a portion of the suction port assembly, wherein the handle member has a variable length. Floorcloth plates having a plurality of steam passages radially formed on the bottom surface thereof may be rotatably mounted on the bottom surface of the suction port assembly.

Abstract: The present invention relates to a method for recrystallizing fine spherical cyclotrimethylenetrinitramine (Research Department Explosive, hereinafter, referred to as “RDX”) particles, and the method for recrystallizing fine spherical RDX particles according to the present invention may include (a) introducing a powder material containing RDX into a container, (b) introducing a dimethylether compressed gas into the container and dissolving the RDX to form a RDX solution, (c) releasing and decompressing the RDX solution into atmospheric pressure to form crystallized RDX particles, and (d) separating and collecting the RDX particles.

Abstract: According to the present invention, unstable hydrogen of 4,4?,5,5?-tetranitro-2,2?-biimidazole, which is a promising material for insensitive high-performance molecular explosives, may be stabilized by aminoguanidium to provide di(aminoguanidium) 4,4?,5,5?-tetranitro-2,2?-biimidazole, thereby solving the hygroscopicity of 4,4?,5,5?-tetranitro-2,2?-biimidazole, and enhancing performance and insensitivity thereof.

Abstract: The present invention relates to a method for recrystallizing fine spherical cyclotrimethylenetrinitramine (Research Department Explosive, hereinafter, referred to as “RDX”) particles, and the method for recrystallizing fine spherical RDX particles according to the present invention may include (a) introducing a powder material containing RDX into a container, (b) introducing a dimethylether compressed gas into the container and dissolving the RDX to form a RDX solution, (c) releasing and decompressing the RDX solution into atmospheric pressure to form crystallized RDX particles, and (d) separating and collecting the RDX particles.