| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 015326000 | With sound muffling feature | 15 |
| 20080289138 | Suction port assembly and vacuum cleaner having the same - A suction port assembly and vacuum cleaner having the same is disclosed. The suction port assembly includes a casing comprising a suction port which draws in dust from a surface being cleaned; a drum brush which is disposed rotatably in the casing, on an external surface of which a plurality of bristles are arranged to shake off dust from the surface being cleaned; and a rib which is disposed at a position close to the drum brush, is mounted in the casing so that its one end is in contact with the bristles, and detaches the dust from the bristles when the drum brush rotates; and wherein the bristles are contacted on a slant relative to the rib to prevent the drum brush from rotating when the casing is pulled towards a user. | 11-27-2008 |
| 20090038106 | Engine blower - An engine blower includes a muffler ( | 02-12-2009 |
| 20090249577 | Cyclone Silencer of Cleaner and Dust Removing Device Having the Same - A cyclone silencer of cleaner includes an outlet pipe( | 10-08-2009 |
| 20100064471 | VACUUM CLEANER WITH NOISE SUPPRESSION FEATURES - A vacuum cleaner includes a cyclonic airflow chamber that facilitates the separation of contaminants from a suction airstream. The airflow chamber includes a chamber inlet and a chamber outlet, with the chamber inlet being fluidically connected with at least one of a suction nozzle and an above-the-floor cleaning tool. An exhaust filter housing includes a suction duct and an exhaust plenum, with the suction duct communicating with the chamber outlet. A suction source housing includes an open end communicating with the exhaust plenum and a closed end. A suction source is positioned within the suction source housing to define an annular exhaust flow passageway surrounding the suction source from the housing closed end to the housing open end. The suction source includes a suction inlet communicating with the suction duct and an exhaust outlet communicating with the housing closed end. | 03-18-2010 |
| 20100071151 | Removable Internal Air Diffuser - Disclosed herein is a vacuum cleaner having a housing defining first and second ports. The vacuum cleaner also includes a cap assembly. The cap assembly includes a cap head to close the first port such that airflow is directed via a flow path to the second port, a sound-influencing material, the sound-influencing material removably held to the cap head and disposed within the flow path to reduce noise effected by the airflow. The flow path is configured to cause the airflow to pass through the sound-influencing material and the flow path to the second port. The sound-influencing material is removable to allow cleaning of the sound-influencing material. The sound-influencing material may include a reticulated foam roll disposed in the frame to diffuse the discharge airflow. | 03-25-2010 |
| 20100223751 | CLEANING APPLIANCE - A cleaning appliance includes an airflow generator for generating an airflow, separating apparatus for separating dirt and dust from the airflow, a power source for supplying power to the airflow generator, at least one exhaust vent and an exhaust baffle, the exhaust baffle includes a body having an upstream face and a downstream face, an airflow path between the upstream and downstream faces and a plurality of blades projecting from the body, each blade having a first side edge, a second side edge and a forward edge. | 09-09-2010 |
| 20100236011 | AIR INTAKE FOR VACUUM-CONVEYANCE WASTE COLLECTION SYSTEM - There is provided an air intake for a vacuum-conveyance waste collection system, to form a high-speed air flow by allowing air to enter a conveying line through which waste being put into a waste receiving device is conveyed to a central waste collection station. | 09-23-2010 |
| 20120233805 | Vacuum Motor Scroll Assembly and Vacuums Including Such an Assembly - A scroll assembly for use with a fluid machine, such as a wet/dry vacuum appliance, is described. Such scroll assembly may include a base portion, a cover portion configured to couple to the base portion, and a cavity between the base portion and the cover portion, wherein the cover portion and the base portion collectively form a labyrinth seal when coupled together, and wherein the labyrinth seal at least partially circumscribes the cavity. A vacuum appliance may include a scroll assembly coupled at least partially therein. A method of exhausting air from a vacuum appliance may include energizing a vacuum motor, thereby drawing air into the scroll assembly, allowing the air to contact a flow splitter, and allowing the air to exit the vacuum appliance. | 09-20-2012 |
| 20130061419 | PROPANE VACUUM - A vacuum cleaner having a propane fuel source, a sealed vacuum chamber and a total weight of not more than forty pounds. A vacuum cleaner system for a portable vacuum cleaner having a propane fuel source, a sealed vacuum chamber and a total weight of not more than forty pounds, and having and at least one removably attachable harness, at least one removably attachable carrier shoulder strap, at least one removably attachable handle, at least one removably attachable wheel and/or at least one rolling tray. | 03-14-2013 |
| 20150128375 | VACUUM CLEANER NOISE AND VIBRATION REDUCTION SYSTEM - A motor enclosure for a vacuum cleaner motor having an air inlet and an air outlet may enclose the vacuum cleaner motor and the motor enclosure may form a channel structure around the vacuum cleaner motor for guiding at least a part of an airflow exiting the air outlet of the vacuum cleaner motor during use to turn by an angle of 360° or more about an axis that is perpendicular to a line between the air inlet and the air outlet of the vacuum cleaner motor. Further, a mounting suspension may connect the vacuum cleaner motor to a housing of the vacuum and may suspend the motor enclosure, for example such that the motor enclosure is only connected to the suspension and the motor enclosure is connected to the motor and the vacuum cleaner only via the suspension. | 05-14-2015 |
| 20160037984 | VACUUM CLEANER - A vacuum cleaner having an improved structure capable of enhancing suction performance includes a suction unit provided in a main body, the suction unit including an impeller disposed to suck air by rotating about an axis thereof, and a diffuser disposed to guide air discharged from the impeller. The diffuser includes an inner casing, an outer casing disposed to be spaced apart from an outer circumference of the inner casing and to form a path through which the air discharged from the impeller flows, and a plurality of vanes disposed at the inner casing to guide the air discharged from the impeller to the path, and the plurality of vanes protrude toward the outer casing to cross at least a part of the path. | 02-11-2016 |
| 20160120386 | Handle Assembly and Mobility System for Floor Cleaner - A handle assembly is used with a vibration reducing interface with vibrating equipment which uses eccentrics to induce oscillation vibrations and tools, machines or other equipment which uses pumps, compressor, motors, spinning elements or out of balance loads or inconsistent, variable loading as in equipment with irregular or erratic motion which induces vibration, in the preferred embodiment using tiers or using the prior circular elements to do so. The handle assembly is easy to operate and also permits attachment to larger vibration plates, which can also have wheels or other transport mechanisms mounted on the vibration plate to permit the unit to be easily transported through conventional door frames and doorways. | 05-05-2016 |
| 20160143499 | ROBOT CLEANER - A cleaner body forms an outer appearance of a robot cleaner. A suction module provided in the cleaner body, and configured to suck dust on a surface to be cleaned. A first guiding member and a second guiding member communicate with the suction module, and spaced apart from each other, and a cyclone unit is configured to separate dust from air sucked through the first and second guiding members, using a centrifugal force. A fan module is connected to the cyclone module, and includes a motor module, and a first fan module and a second fan module connected to two sides of the motor module and configured to generate a suction force. A noise reducing cover is provided over an upper side of the fan module so as to reduce noise, and extends toward two sides of the motor module to cover the first and second fan modules. | 05-26-2016 |
| 20160198917 | CLEANING DEVICE | 07-14-2016 |
| 20180020891 | VACUUM CLEANER | 01-25-2018 |
