Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8177872 | Raincap precleaner, motor vehicle having a raincap precleaner, and method for precleaning air A raincap precleaner is provided according to the present invention. The raincap precleaner includes a sleeve, a cover, and a precleaner assembly. The sleeve is constructed for mounting on an air intake stack and has an air intake flow region for delivering intake a... | 05/15/2012 |
| 8097053 | Separator of solid particles from steam-gas mixture The present invention is related to the separator (dust chamber) for separating solid particles from vapor-gas mixture, particularly to the structure of the dust chamber belonging amongst installation of the plant processing the fossil fuels or materials containing ... | 01/17/2012 |
| 8034140 | Configuration of a cyclone assembly and surface cleaning apparatus having same A cyclone separator useable in a surface cleaning apparatus comprises a cyclone casing defining a cyclone chamber and having first and second opposed ends and a sidewall extending between the first and second ends. A transition member is provided adjacent the end of... | 10/11/2011 |
| 7993423 | High efficiency grease filter cartridge A grease filter has a filtering portion configured such that fumes enter a major face thereof and flow through a grease extraction filter therewithin in a direction parallel to the major face. A frame that fits into an opening of a hood defines a box structure that ... | 08/09/2011 |
| 7955405 | Cyclonic separation apparatus A cyclonic vacuum cleaner comprises a first stage 10 comprising a single cyclone separator for separating heavier dirt and dust particles and a second stage 11 comprising a plurality of cyclone separators 25 arranged in parallel in a plurality o... | 06/07/2011 |
| 7938872 | Device for separating particles from a gas stream The invention concerns a separating device for separating particles (4) from a gas stream (2) in which the gas stream (2) by means of a guiding device is caused to rotate and the liquid or solid particles (4) to be separated are removable... | 05/10/2011 |
| 7879120 | 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 c... | 02/01/2011 |
| 7867308 | Cyclonic array such as for a vacuum cleaner A cyclonic cleaning stage for a, e.g., surface cleaning apparatus is provided. The cyclonic cleaning stage comprises a plurality of cyclones, which are integrally molded as a single body. Each cyclone has a cyclone body having an upper end, a lower end, a cyclone in... | 01/11/2011 |
| 7862637 | Multi-cyclone dust separator A multi-cyclone dust separator is provided, including a first cyclone unit that centrifugally separates dust from dust-laden air drawn into the first cyclone unit through a first air inlet, and a second cyclone unit that is formed inside the first cyclone unit, wher... | 01/04/2011 |
| 7819933 | Cyclone dust collector A cyclone dust collector is provided, including a cyclone unit that includes a first cyclone unit including a cyclone chamber to separate dust from dust-laden air, and a second cyclone unit, which is mounted in the first cyclone unit, including a plurality of cones ... | 10/26/2010 |
| 7806950 | Dust separating apparatus of vacuum cleaner A dust separating apparatus of a vacuum cleaner includes cyclone units connected such that air passes from one cyclone unit to another cyclone unit in sequence. Each of the cyclone units receives air, swirl the air, and separate dust from the air. The cyclone units ... | 10/05/2010 |
| 7799106 | Gas intake zone of a gas filter housing, used as a prefilter The invention relates to a gas intake zone of a separable gas filter housing which removably accommodates a filter element. The gas intake zone is used as a prefilter and comprises a plurality of axially adjacent, axially impinged cyclone collectors that are provide... | 09/21/2010 |
| 7776116 | 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... | 08/17/2010 |
| 7749293 | Vacuum cleaner with a removable cyclone array A surface cleaning apparatus comprises a dirt inlet, a handle, at least a first cleaning stage comprising a plurality of cyclones in parallel and a plurality of dirt collection chambers that are emptied concurrently wherein the plurality of cyclones and the pluralit... | 07/06/2010 |
| 7749292 | Cyclonic dust collecting apparatus A dust collecting apparatus for separating particles from an airflow comprises at least a first cyclonic separator for removing larger particles from the airflow and a plurality of second cyclonic separators, arranged in parallel and in tandem with one another, for ... | 07/06/2010 |
| 7740676 | Dust collection in vacuum cleaners A cyclonic separator assembly for a vacuum cleaner, the assembly including a first cyclonic separator for effecting a first stage of dust separation from the suction airflow of the cleaner, and at least one further cyclonic separator for further separation of dust f... | 06/22/2010 |
| 7740675 | Cyclonic vacuum cleaner A surface cleaning apparatus comprises a dirt inlet, a handle, a cyclonic cleaning unit comprising a plurality of cyclones and at least one dirt collection chamber, each of the plurality of cyclones having an outer wall, an interior, a fluid inlet downstream from th... | 06/22/2010 |
| 7722693 | Cyclone dust collecting apparatus for vacuum cleaner A cyclone dust collecting apparatus for a vacuum cleaner includes a first cyclone, a second cyclone disposed inside the first cyclone, and an air guiding member to form an entrance of the second cyclone through which semi-clean air discharged from the first cyclone ... | 05/25/2010 |
| 7708791 | 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... | 05/04/2010 |
| 7686858 | Cyclone dust collection apparatus Disclosed is a cyclone dust collection apparatus. The cyclone apparatus comprises a cyclone body having a first cyclone section and a plurality of cyclone cones arranged around a lower part of the first cyclone, each cyclone cone having a conical shape whose diamete... | 03/30/2010 |
| 7682412 | Multi-cyclone dust collection apparatus A multi-cyclone dust collection apparatus is disclosed that comprises a first cyclone having an air inlet, in which the air introduced into the first cyclone through the air inlet is caused to swirl and ascend in the first cyclone so that dust is separated from the ... | 03/23/2010 |
| 7682413 | Air precleaner arrangement for an internal combustion engine comprising two cyclone filters An air precleaner arrangement for an internal combustion engine comprises a screen, a shroud, a fan, a first cyclone filter and a second cyclone filter. The screen has air permeable openings sized to retain debris. A fan is cooperating with the screen to provide an ... | 03/23/2010 |
| 7678166 | Cyclone dust collecting apparatus for vacuum cleaner The present disclosure relates to a cyclone dust collecting apparatus for a vacuum cleaner having a high fine dust collecting efficiency. The cyclone dust collecting apparatus includes a first cyclone having an air suction hole through which dust-laden air is drawn-... | 03/16/2010 |
| 7635400 | Dust collecting device for vacuum cleaner A dust collecting device of a vacuum cleaner includes a first cyclone unit comprising a first cyclone chamber where the air enters through a first inlet and spins, and a first dust collecting chamber where dust separated from the air is collected; and a second cyclo... | 12/22/2009 |
| 7628833 | Multi-cyclone dust separating apparatus A multi-cyclone dust separating apparatus has a main cyclone comprising one or more cyclones, a sub cyclone comprising one or more cyclones, and being arranged around a part of the main cyclone in parallel relation, and a dust collecting casing provided to enclose t... | 12/08/2009 |
| 7604675 | Separately opening dust containers The present invention relates to a home cleaning appliance including a housing including a nozzle having a main suction opening and a brush. An air stream suction source, mounted to the housing, includes a suction airstream inlet and a suction airstream outlet. The ... | 10/20/2009 |
| 7594943 | 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... | 09/29/2009 |
| 7594944 | Multi-cyclone dust separating apparatus A multi-cyclone dust separating apparatus has a main cyclone part comprising one or more cyclones, a sub cyclone part comprising one or more cyclone cones, and arranged in substantially parallel relation with respect to the main cyclone part, and a dust collecting c... | 09/29/2009 |
| 7582129 | Multi-cyclone dust separating apparatus Disclosed is a multi-cyclone dust separating apparatus, comprising a cyclone body, a top cover and a discharge cover. The cyclone body includes a main cyclone and a plurality of cyclone cones communicating with the main cyclone and arranged around a lower part of th... | 09/01/2009 |
| 7556662 | Multi-cyclone dust separating apparatus A multi-cyclone dust separating apparatus includes: a multi-cyclone unit including a first cyclone chamber body having a first cyclone chamber and at least one protection chamber formed around at least a portion of an outer circumference of the first cyclone chamber... | 07/07/2009 |
| 7547338 | Multi dust-collecting apparatus A multi dust-collecting apparatus for a vacuum cleaner is provided. The apparatus includes a dust-collecting unit having an air guide member to separate dirt particles from drawn-in air by using a gravity and an inertia and a filter member to remove dirt particles f... | 06/16/2009 |
| 7547337 | Multi dust-collecting apparatus A multi dust-collecting apparatus for a vacuum cleaner separating dirt particles from air by taking two steps. The multi dust-collecting apparatus includes a dust-collecting unit to separate dirt particles from the air by using gravity and inertia, and a plurality o... | 06/16/2009 |
| 7540894 | Subsection dedusting device for a vacuum cleaner This invention discloses a subsection dedusting device for a vacuum cleaner comprising an upper cyclone separator including a wind outlet and several lower cyclone separators located below said upper cyclone separator, wind inlets of said lower cyclone separators in... | 06/02/2009 |
| 7510586 | Dust separator and collector arrangement for suction cleaner A dust separating and collecting apparatus for a suction cleaner comprising at least one cyclonic separating device (10) having a body (12) through which a stream of air with dust therein can be caused to flow by a suction unit from an air inlet (16... | 03/31/2009 |
| 7479172 | Cyclonic separators for suction cleaners A dust separating apparatus for a suction cleaner comprises a cyclonic separating device (10) having a body (12) with an inlet and an outlet for a stream of air and an outlet for separated dust to enter a receptacle (34) for the dust, the body h... | 01/20/2009 |
| 7470299 | 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 sepa... | 12/30/2008 |
| 7445653 | Centrifugal oil separator A centrifugal oil separator which includes a disk separator disposed in a housing and has a plurality of spaced disks between which paths of flow for a gas to be cleaned are provided. The paths of flow connect an intake space located at the radial exterior of the di... | 11/04/2008 |
| 7445652 | Evaporator system An evaporator system for an industrial boiler is provided and includes a heat-transfer system for generating a water-steam mixture. At least one horizontal vessel is provided for the primary separation of water and steam. At least one vertical vessel is provided and... | 11/04/2008 |
| 7422612 | Oil separator for the separation of oil from the crankcase ventilation gas of an internal combustion engine The invention relates to an oil separator for the separation of oil from the crankcase ventilation gas of an internal combustion engine, comprising a housing wherein a separating element is arranged, comprising an inlet for gas to be cleaned, an outlet for cleaned g... | 09/09/2008 |
| 7419522 | Dirt separation and collection assembly for vacuum cleaner A dirt separation and collection assembly suitable for use in a bagless vacuum cleaner including two dirt separation and collection zones is provided. Dirty air enters the upper portion of a container and enters a first stage dirt separation zone including a disrupt... | 09/02/2008 |
