| Patent application number | Description | Published |
|---|
| 20080250599 | Dust sensing unit for use in vacuum cleaner - A dust sensing unit for use in a vacuum cleaner, which can detect whether there is dust or dirt on a surface to be cleaned and inform a user of the detected result in cleaning, is disclosed. The dust sensing unit includes a body having an air flowing passage therein to move air laden with dust or dirt drawn in through a suction nozzle, a detecting sensor disposed on the air flowing passage to detect whether the dust or dirt is passing through the air flowing passage, a lamp part to operate according to a signal outputted from the detecting sensor, a rotating part disposed to the body to rotate by air flowing through the air flowing passage, and an electric generator rotated by the rotating part to generate an electric power. | 10-16-2008 |
| 20080250764 | Connecting tube having dust sensing function for use in vacuum cleaner - A connecting tube having a dust sensing function is provided. The connecting tube includes a tube element having a first air flowing passage; a body having a second air flowing passage to communicate with the first air flowing passage; a detecting sensor disposed on the second air flowing passage to detect whether the dust or dirt passes through the second air flowing passage; a lamp part to operate according to a signal outputted from the detecting sensor; a rotating part rotatably disposed on the body; a rotation driving-passage part disposed on the body to draw in an external air into the second air flowing passage and thus to rotate the rotating part; an electric generator connected to the rotating part to generate an electric power; and a muffler part to reduce noises from the rotating part and the flowing air. | 10-16-2008 |
| 20080256911 | Cyclone dust-separating apparatus of vacuum cleaner - A cyclone dust-separating apparatus of a vacuum cleaner is disclosed. The cyclone dust-separating apparatus includes at least one cyclone having a cyclone body, which rotates air to separate dust or dirt therefrom, which has an air inflow part and an air discharging part, and which is installed in such a manner that a longitudinal axis thereof is substantially horizontally arranged, and a dust collecting unit to store the dust or dirt separated by the cyclone unit. The cyclone body is formed in a convex cylinder shape, so that a diameter thereof in the vicinity of an entrance of the air discharging part through which the air is discharged comes maximum. | 10-23-2008 |
| 20080264014 | Dust compressing apparatus of vacuum cleaner - A dust compressing apparatus of a vacuum cleaner capable of automatically compressing dust or dirt collected in a dust separating unit is disclosed. The dust compressing apparatus includes a compressing plate to compress dust or dirt collected in a dust separating unit, a moving unit disposed on one side of the dust separating unit located in an opposite direction to a direction where the compressing plate compresses the dust or dirt, to move the compressing plate to a compressing position of compressing the dust or dirt and a releasing position of moving away from the dust or dirt, and a driving motor to drive the moving unit thus to move the compressing plate to the compressing position. | 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 |
| 20080264017 | Multi cyclone dust-separating apparatus of vacuum cleaner - A multi cyclone dust-separating apparatus is disclosed that includes a cyclone unit having a first cyclone, a plurality of second cyclones, and a dust collecting unit. The first cyclone is disposed so that a longitudinal axis thereof is substantially vertically arranged. The first cyclone separates relatively large dust or dirt from air drawn in through a first air inflow part. Each of the second cyclones is disposed so that longitudinal axes thereof are substantially vertically arranged. Each of the second cyclones has a second air inflow part to communicate with the first cyclone and an air discharging part to discharge the air. The second cyclones separate relatively minute dust or dirt from the air drawn in through the second air inflow part. The dust collecting unit is disposed below the cyclone unit to collect and store the dust or dirt separated from the air by the cyclone unit. | 10-30-2008 |
| 20090019821 | Multi-cyclone dust separator and a vacuum cleaner using the same - A multi-cyclone dust separator according to an embodiment of the present invention comprises at least three dust separation units for separating dust stepwise from relatively larger size. The dust separation units comprise a first dust separation unit primarily separating dust from external air drawn in; a second dust separation unit secondarily separating dust from the air primarily dust-separated by the first dust separation unit; and a third dust separation unit thirdly separating dust from the air secondarily dust-separated by the second dust separation unit. Here, the first to third dust separation units are multi-layered in a serial manner. | 01-22-2009 |
| 20090049642 | Suction brush for vacuum cleaner - A suction brush for a vacuum cleaner is provided. The suction brush includes an upper casing; a lower casing; an elevating plate installed between the upper casing and the lower casing; a cleaned surface sensing part for sensing; a lever rotatably provided around a rotating shaft that is parallel to the elevating plate; and a solenoid. The solenoid rotates the lever in one direction when the surface to be cleaned is the hard floor and rotates the lever in the other direction when the surface to be cleaned is the carpet. The lower casing contacts the surface to be cleaned as the elevating plate descends, while it comes apart from the surface to be cleaned as the elevating plate ascends. | 02-26-2009 |
| 20090049643 | Suction brush for vacuum cleaner - A suction brush for a vacuum cleaner includes an upper casing, a lower casing coupled to the upper casing and provided with a suction port through which contaminants are drawn in from a surface to be cleaned, a lift plate disposed between the upper casing and the lower casing to move up and down with respect to the lower casing, a lift plate driving part to allow the lift plate to move up and down, and a lift control unit to control the lift plate driving part so that when the surface to be cleaned changes from a hard floor to a carpet, the lift plate is raised, and when the surface to be cleaned changes from the carpet to the hard floor, the lift plate is lowered. | 02-26-2009 |
| 20090064446 | Suction brush for use in vacuum cleaner and method of adjusting the height thereof - A suction brush for use in a vacuum cleaner and a method of adjusting the height thereof. The suction brush includes a brush casing having a suction opening to draw in air and a main air passage through which the air drawn in through the suction opening flows, a detecting unit disposed to the brush casing to detect a kind of a surface to be cleaned, a lifting unit to move a bottom surface of the brush casing close to and away from the surface to be cleaned, and a driving unit operated in response to a signal generated from the detecting unit and moving the lifting unit using air pressure generated by the air flowing through the main air passage. | 03-12-2009 |
| 20090113859 | Multi-cyclone dust separating apparatus of vacuum cleaner - The multi-cyclone dust separating apparatus includes a first cyclone unit including a first outer tub with a first air inlet and a cylindrical element with a first air outlet, and whirling air from the first air inlet to separate dust therefrom, the cylindrical element being disposed in the first outer tub to form a first cyclone chamber, along with the first outer tub; a second cyclone unit including a plurality of cyclones, each having a second air inlet for drawing in dust-laden air from the first cyclone chamber, to provide a second dust separation; and a dust bin including a first dust collecting chamber for collecting the dust separated by the first cyclone unit and a plurality of second dust collecting chambers for collecting the dust separated by the second cyclone unit. | 05-07-2009 |
| 20090113861 | Vacuum cleaner - A multi-cyclone dust-collecting apparatus for a vacuum cleaner mounted in a main cleaner body to separate dust from air flowing from a suction port body and collect the dust separated from the air, the apparatus including a dust-separating unit including a primary cyclone unit to separate large dust particles contained in the air flowing from the suction port body, and a secondary cyclone unit that is disposed inside the primary cyclone unit and that tapers downwards; and a dust-collecting unit detachably mounted in a lower portion of the dust-separating unit, the dust-collecting unit including a first dust-collecting chamber to collect the large dust particles discharged from the primary cyclone unit, and a second dust-collecting chamber disposed inside the first dust-collecting chamber to collect fine dust particles discharged from the secondary cyclone unit. The first dust-collecting chamber may be greater in volume than the second dust-collecting chamber. | 05-07-2009 |
| 20090193611 | Bypass type cleaning apparatus - A bypass type cleaning apparatus includes a suction nozzle; an air suction unit being in fluid communication with the suction nozzle via an entering passage; and at least two contaminant collecting receptacles being in fluid communication with at least two exits formed at the air suction unit, respectively. | 08-06-2009 |
| 20090193772 | Multi-cyclone dust separating apparatus and cleaner having the same - A compact multi-cyclone dust separating is disclosed. The multi-cyclone dust separating apparatus includes a first cyclone chamber that separates dust-laden air drawn from outside, a second cyclone chamber that is disposed in the first cyclone chamber, and that separates dust-laden air drawn from the first cyclone chamber, and a third cyclone chamber that is disposed around a periphery of the first cyclone chamber, and that separates dust-laden air drawn from the second cyclone chamber. | 08-06-2009 |
| 20090205156 | CLEANER APPARATUS - A vacuum apparatus having a suction nozzle, an air suction unit to which the suction nozzle is pivotally connected and which fluidly communicates with the suction nozzle through a connection channel, a dirt receptacle which has at least two collecting parts fluidly communicating with at least two outlets formed at the air suction unit, respectively. | 08-20-2009 |
| 20090205162 | Cyclone dust separating apparatus - A cyclone dust separating apparatus for separating dust from external air drawn in thereto and discharging the separated dust, comprises at least one first cyclone body having a tubular shape and forming a first cyclone chamber where the external air is rotated; and at least one second cyclone body forming a second cyclone chamber where the air discharged from the first cyclone chamber is rotated again to separate dust, wherein the external air is drawn in through a lower end of the first cyclone chamber and discharged through an upper end of the first cyclone chamber, and the air discharged from the first cyclone chamber is drawn in through an upper end of the second cyclone chamber and discharged through an upper end of the second cyclone chamber. | 08-20-2009 |
| 20090300871 | Cyclone dust-collecting apparatus and vacuum cleaner having the same - A cyclone dust-collecting apparatus and vacuum cleaner having the cyclone dust-collecting apparatus are provided. The cyclone dust-collecting apparatus includes a cyclone unit comprising a primary cyclone unit having a grill filter formed therein, and a secondary cyclone unit fluidly communicating with the primary cyclone unit; a cover unit detachably disposed above the cyclone unit to discharge air discharged from the secondary cyclone unit; and a dust-collecting unit detachably disposed below the cyclone unit to collect dust separated by the primary cyclone unit and secondary cyclone unit, wherein air flows into the grill filter in the same direction as air flows into the primary cyclone unit. | 12-10-2009 |
