Patent application number | Description | Published |
20100180757 | METHOD AND APPARATUS FOR LOADING CARTRIDGES WITH PRESSABLE PLASTIC BONDED EXPLOSIVES - Disclosed are an apparatus and method for loading small and medium caliber cartridges with pressable plastic bonded explosives (PBXs). A plurality of pellets are pre-formed to have a high density, and are loaded into a small and medium caliber cartridge one by one. Accordingly, a high and uniform density is obtained. And, when manufacturing small and medium caliber cartridges, the pressable PBXs are anticipated to be massively loaded into the small and medium caliber cartridges in the future. | 07-22-2010 |
20120149896 | METHOD FOR SEPARATION OF HMX AND RDX - 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. | 06-14-2012 |
20120276385 | RECRYSTALLIZATION METHOD OF FINE SPHERICAL RDX PARTICLE - 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. | 11-01-2012 |
Patent application number | Description | Published |
20090299079 | 1-GLYCIDYL-3,3-DINITROAZETIDINE CONTAINING EXPLOSIVE MOIETY AND PREPARATION METHOD THEREOF - Disclosed is a 1-glycidyl-3,3-dinitroazetidine(GDNAZ) of Formula I wherein dinitroazetidine group which is a high energy group having unit structure of explosive moiety is incorporated to a monomer, and the method thereof. By using the GDNAZ of the present invention in the synthesis of energetic binder for high-performance insensitive explosive, an energetic binder with enhanced thermal and storing stability and explosive power can be provided. | 12-03-2009 |
20100081811 | METHOD FOR THE NITRATION OF 4,6-DIHYDROXY-2-METHYLPYRIMIDINE - Disclosed is a method for the nitration of 4,6-dihydroxy-2-methylpyrimidine for the synthesis of 4,6-dihydroxy-5,5-dinitro-2-(dinitromethylene)-2,5-dihydropyrimidine which is used as a precursor of 1,1-diamino-2,2-dinitroethylene, one type of explosives. The present invention provides an improved method for the nitration of 4,6-dihydroxy-2-methylpyrimidine, wherein organic solvent is applied in the nitration process of 4,6-dihydroxy-2-methylpyrimidine thereby solving the safety problem while improving the yield of nitration. | 04-01-2010 |
20120203008 | DI(AMINOGUANIDIUM) 4,4',5,5'-TETRANITRO-2,2'-BIIMIDAZOLE, AND PREPARATION METHOD THEREOF - 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. | 08-09-2012 |
Patent application number | Description | Published |
20090064447 | Steam vacuum cleaner - A steam vacuum cleaner. The steam vacuum cleaner includes a suction port assembly comprising a dust receptacle formed therein and an impeller driven by a motor to draw in air and dust from an object being cleaned through a suction port formed on a lower portion of the suction port assembly and to discharge the suctioned air and dust into the dust receptacle, a main body comprising a water tank and a heater unit to receive water from the water tank and generate steam, wherein a lower portion of the main body is hinged to a portion of the suction port assembly, and a floorcloth plate formed on a lower portion of the suction port assembly and comprising at least one floorcloth attached thereto. | 03-12-2009 |
20090064448 | STEAM VACUUM CLEANER - 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 pluraity of steam passages radially formed on the bottom surface thereof may be rotatably mounted on the bottom surface of the suction port assembly. | 03-12-2009 |
20090106929 | Heating apparatus and cleaner having the same - A heating apparatus and a cleaner having the same are disclosed. The heating apparatus includes a heating casing to receive water from a water container and convert the water into steam, wherein the heating casing comprises a plurality of ribs and each successive rib comprises a space to collect water and convert the water into steam. The cleaner includes a cleaner body in which a water container is detachably mounted, a nozzle assembly rotatably connected to a lower part of the cleaner body and including a nozzle to inject steam, and a heating apparatus that includes a heating casing to receive water from the water container, convert the water into steam, and supply the steam to the nozzle assembly, wherein the heating casing includes a plurality of ribs and each successive rib includes a space to collect water and convert the water into steam. | 04-30-2009 |
Patent application number | Description | Published |
20080264007 | Dust collecting apparatus for vacuum cleaner - A dust collecting apparatus for a vacuum cleaner is provided. The dust collecting apparatus includes a dust collecting unit detachably mounted in a main body of the vacuum cleaner, to separate and collect dust from drawn-in air flowing therein; a filter unit disposed above the dust collecting unit, the filter unit comprising a filter to filter fine dust particles contained in air from which the dust has been separated by the dust collecting unit; a top cover to cover the filter unit and to discharge the air filtered through the filter; a rotating unit, which is disposed inside the filter unit, to strike a portion of the filter and to remove the fine dust particles attached to the filter; and a dust compression plate to compress the collected dust while being moved up and down inside the dust collecting unit by power transferred from the rotating unit. | 10-30-2008 |
20080264015 | Dust compressing apparatus of vacuum cleaner - A dust compressing apparatus of a vacuum cleaner that automatically compresses dust or dirt collected and stored in a dust separating apparatus. The dust compressing apparatus includes a compressing plate to compress dust or dirt collected in the dust separating apparatus, a lifting and lowering unit connected to the compressing plate above the compressing plate to lift and lower the compressing plate, and a driving motor to drive the lifting and lowering unit thus to lift and lower the compressing plate. | 10-30-2008 |
20080264016 | Vacuum Cleaner - A vacuum cleaner includes a vacuum cleaner body, a cyclone unit which is mounted at the vacuum cleaner body, and separates dust from drawn air, a dust separating unit which is engaged with a lower end of the cyclone unit, said dust separating unit being configured to collect separated dust, said dust separating unit being detachable from the cyclone, and said dust separating unit comprising a compressing plate compressing the collected dust; and a driving unit which is disposed at a lower end of the dust separating unit, said driving unit being configured to ascend and descend the dust separating unit to be detachably connected to the cyclone unit and drives the compressing plate. As a result, the vacuum cleaner is capable of not only compressing dust in a dust separating unit by rotating a lever, but also detachably mounting the dust separating unit to a cyclone unit. Therefore, the vacuum cleaner having simplified structure and a convenient operation is provided. | 10-30-2008 |
20080289141 | Nozzle assembly of vacuum cleaner - A nozzle assembly of a vacuum cleaner is disclosed. The nozzle assembly includes a nozzle assembly body having an air inlet and an air outlet, a drum brush unit disposed in the nozzle assembly body in the vicinity of the air inlet, and having a drum brush disposed to brush away dirt or dust adhered to a surface to be cleaned while coming in rotation contact therewith, and a movable brush unit disposed in at least one of the front and the rear of the air inlet on an undersurface of the nozzle assembly body to pivot in an opposite direction to a moving direction of the nozzle assembly body thus to change a contacting angle to the surface to be cleaned in the range of a predetermined angle and then to brush away dirt or dust adhered to the surface to be cleaned, in moving of the nozzle assembly body. | 11-27-2008 |
20090000057 | Suction nozzle assembly usable with vacuum cleaner having hair collecting member, vacuum cleaner having the same, and method for removing hair by using the same - A suction nozzle assembly usable with a vacuum cleaner includes a nozzle body configured to move along a surface to be cleaned, the nozzle body having a contaminant suction opening; and a hair collecting unit disposed at the nozzle body; wherein the hair collecting unit comprises a hair collecting member that contacts the surface to be cleaned; wherein when the nozzle body moves, the hair collecting member does not rotate; and wherein when the nozzle body moves in a first direction, the hair collecting member collects fibers from the surface to be cleaned. | 01-01-2009 |