Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8096015 | Vacuum cleaning nozzle An air-powered vacuum cleaning nozzle has an agitator brush rotated by an air turbine powered by a source of suction air. A plurality of air inlet openings are formed adjacent the agitator brush. A generally flat friction drive belt extends from a bearing shaft of t... | 01/17/2012 |
| 7861368 | Vacuum cleaning head A vacuum cleaning head includes a rotatable brush bar and an air turbine driving the brush bar. An air inlet admits air to drive the turbine. A button is movable between an open position, in which it admits air to the turbine, and a closed position in which it close... | 01/04/2011 |
| 7856694 | Nozzle assembly of vacuum cleaner A nozzle assembly of a vacuum cleaner is provided that includes a casing, a suction port, a drum brush, a fan, and a blocking plate. The drum brush is rotatably disposed in the casing so drum bristles hit a surface being cleaned. The fan is disposed in the casing to... | 12/28/2010 |
| 7765639 | Turbine brush of a vacuum cleaner A turbine brush for a vacuum cleaner according to an embodiment of the present invention, comprises a turbine brush body connected to a cleaner body in which a suction force is generated and having a suction path therein, a brush member rotatably mounted to the turb... | 08/03/2010 |
| 7743463 | Vacuum cleaning nozzle An air-powered vacuum cleaning nozzle has an agitator brush rotated by an air turbine powered by a source of suction air. A plurality of air inlet openings are formed adjacent the agitator brush. A generally flat friction drive belt extends from a bearing shaft of t... | 06/29/2010 |
| 7640626 | Suction brush of vacuum cleaner for both vacuum cleaning and steam cleaning A suction brush of a vacuum cleaner for both vacuum cleaning and steam cleaning is provided. The suction brush includes a brush main body connected to a cleaner main body; a steam generating unit for heating water being supplied from a water storage tank mounted on ... | 01/05/2010 |
| 7526834 | Vacuum cleaning head A vacuum cleaning head includes a housing having an agitator in the form of a brush bar rotatably arranged in a chamber having an air inlet and an air outlet and also includes an air turbine for driving the brush bar is provided. The air turbine has its own air inle... | 05/05/2009 |
| 7478457 | Rotating dust wand A dust wand comprising a body and a brush rotatably disposed on the body. A suction chamber is disposed within the body. The suction chamber comprises an inlet port disposed adjacent to an outer edge of the brush and a contacting surface that contacts the outer edge... | 01/20/2009 |
| 7441307 | Vacuum cleaning head A restricting device is positioned in the flow duct leading from the main inlet to the cleaning head of a vacuum cleaner and is movable between a restrictive position, in which it serves to restrict the cross-section of the discharge outlet, and an open position, in... | 10/28/2008 |
| 7441306 | Vacuum cleaner and suction nozzle structure thereof Provided is a suction nozzle structure of a vacuum cleaner for enhancing a foreign particle suction efficiency. The suction nozzle structure includes: a suction tube in which a negative pressure is formed; a suction hole formed at a bottom of the suction nozzle stru... | 10/28/2008 |
| 7412750 | Floorcloth attached suction brush for vacuum cleaner A suction brush that includes a body in communication with a dust collection apparatus of a vacuum cleaner and having a main suction port formed through a bottom of the body, and a cover for covering the top of the body, the cover having auxiliary suction ports. A p... | 08/19/2008 |
| 7356873 | Highly efficient autonomous vacuum cleaner The invention provides a vacuum cleaner comprising in particular a structure mounted on transport members (R, R′) and carrying an electrically-driven turbine (T) for acting through a filter membrane (M) to establish suction in a collector (S) of particles picked u... | 04/15/2008 |
| 7334291 | Suction brush assembly and a vacuum cleaner having the same A suction brush assembly comprises an assembly body having a suction inlet for drawing in dust on a surface being cleaned, a cover connected to the assembly body and having an opening for drawing in an external air, and a rotation body rotatably mounted to the assem... | 02/26/2008 |
| 7316050 | Vacuum cleaning tool having an exchangeable attachment A cleaning tool for a vacuum cleaning device has a housing and a motor arranged in the housing. A tool carrier and a rotatingly driven working tool are provided. The working tool has two ends rotatably supported in the tool carrier. The tool carrier and the working ... | 01/08/2008 |
| 7313838 | Powered cleaner/polisher A motorized cleaning/polishing device includes a housing and a carrier with a detachable cleaning/polishing attachment. The housing contains a rechargeable battery, motor and flex mount having flexible pillars to which the carrier is mounted. The carrier is also cou... | 01/01/2008 |
| 7296324 | Vacuum cleaner brush assembly A locking unit of a brush assembly for use with a vacuum cleaner has a release preventing member so that if the brush assembly accidentally falls, the release preventing member conveniently keeps upper and lower housings of the assembly assembled. The brush assembly... | 11/20/2007 |
| 7293314 | Turbine drive apparatus and method suited for suction powered swimming pool cleaner A method and apparatus for enabling a pool cleaner to travel through a water pool to collect dirt and other debris from the water and/or pool containment wall. The cleaner defines a suction passageway having an inlet open to pool water and an outlet adapted to be co... | 11/13/2007 |
| 7281297 | Floor cleaning apparatus equipped with multiple agitators and an agitator hood with baffle A floor cleaning apparatus includes a nozzle assembly including a housing and a cooperating hood defining an agitator cavity. First and second agitators are carried by the nozzle assembly in the agitator cavity. A canister assembly is connected to the nozzle assembl... | 10/16/2007 |
| 7257859 | Cleaner having brush A cleaner having a brush includes a suction motor mounted in a main body, and generating a suction force; a filter for collecting dust or filth sucked by the suction force generated at the suction motor; a suction head connected with the filter by a suction pipe, an... | 08/21/2007 |
| 7251857 | Versatile tools One embodiment of the present invention concerns novel end effectors that may incorporate hexagonal drive shafting and are particularly well suited to be used as scrubbing/abrasive or wiping elements for the cleaning of surfaces. Another embodiment of the present in... | 08/07/2007 |
| 7246410 | Vacuum cleaning tool having an air turbine with stabilizing air stream A vacuum cleaning tool has a housing having a turbine chamber and a bottom plate. A working tool is rotatably supported in the housing. An air turbine for driving the working tool is arranged in the turbine chamber and has axial end faces defining a gap relative to ... | 07/24/2007 |
| 7163098 | Variable-capacity FIFO store with an expulsion station A variable-capacity FIFO store having a powered endless conveyor belt defining a conveying branch for transferring a mass of articles from an input station to an output station, and a return branch extending from the output station to the input station; and an adjus... | 01/16/2007 |
| 7162763 | Turbine drive apparatus and method suited for suction powered swimming pool cleaner A method and apparatus for enabling a pool cleaner (60) to travel through a water pool to collect dirt and other debris from the water and/or pool containment wall (88). The cleaner (60) defines a suction passageway having an inlet (74) o... | 01/16/2007 |
| 7146682 | Powered edge cleaner A floor care appliance such as a vacuum cleaner is provided having a traction wheel powered edge cleaner comprised of a vertical axis rotary agitator which is affixed to either the right or left side of the suction nozzle. The agitator is rotated by the traction whe... | 12/12/2006 |
| 7143471 | Vacuum cleaner attachment A vacuum cleaner attachment is provided. The vacuum cleaner attachment includes a chassis and a plurality of wheels. The chassis is adapted to roll on an underlying surface using the plurality of wheels. The vacuum cleaner attachment further includes a vacuum cleane... | 12/05/2006 |
| 7114211 | Cleaning brush for sanitary appliance A cleaning brush including a housing including a reservoir for storing therein cleaning fluid, the reservoir in fluid communication with a pump, a hollow spindle rotatably mounted in the housing, connected to and powered by a motor, the hollow spindle being in fluid... | 10/03/2006 |
| 7077732 | High torque dual chamber turbine rotor for hand held or spindle mounted pneumatic tool A high torque turbine rotor for a lightweight hand held tool for grinding and polishing having a rotor that includes two separate high pressure air chambers separated by a common housing wall, each air chamber having peripheral air expelling nozzles in a tangential ... | 07/18/2006 |
| 7059013 | Fluid recovery device An apparatus and method for extracting soiled cleaning solution from carpets and other surfaces utilizing a low-profile pick-up head is disclosed. The apparatus includes a vacuum chamber or enclosed space positioned in a fluid recovery device to provide a uniform va... | 06/13/2006 |
| 7059014 | Tool rail cleaning apparatus An apparatus for cleaning at least one surface of tubular tool rails includes an elongated housing having a free end, at least one brush rotatably attached to the free end of the housing, and a motor attached to the housing. The motor is operable to rotate the at le... | 06/13/2006 |
| 7051402 | Gutter sweeper system A vehicle has a container that receives swept debris. A primary sweeper assembly has a primary axle with wound cables in a helical configuration. A primary shroud supports the primary sweeper assembly and the axle adjacent to its ends. Disk-shaped turbines are mount... | 05/30/2006 |
| 6968593 | Hand-held deep cleaner A liquid extraction cleaner comprises a solution dispensing system, a liquid recovery system, and an agitation brush assembly. The solution dispensing system includes a cleaning solution supply tank affixed to the cleaner and fluidly connected to a solution spray no... | 11/29/2005 |
| 6964082 | Waste recycle vacuum cleaner for generating power Accordingly, the primary object of the present invention is to provide a waste recycle vacuum cleaner for generating power which comprises a flow guide seat, a flow guide tube, at least one blade set and at least one driving device. By above components, exhausted wa... | 11/15/2005 |
| 6880200 | Suction device for a vacuum cleaner A vacuum cleaner suction device includes an upper casing member and a lower casing member that oppose each other. A rotary brush chamber in the suction device has a suction port formed therein. A turbine chamber that is separated from the rotary brush chamber but in... | 04/19/2005 |
| 6813809 | Vacuum cleaning tool with rotating brush roller A vacuum cleaning tool of a vacuum cleaning device has a housing with a turbine chamber and a working chamber. The housing has a suction slot extending transversely in the vacuum cleaning tool. A suction airflow generated by the vacuum cleaning device enters the wor... | 11/09/2004 |
| 6711777 | Turbine powered vacuum cleaner nozzle A suction cleaner nozzle has a nozzle body enclosing an agitator chamber, which has an elongated suction inlet opening. An agitator is disposed in the agitator chamber such that the agitator extends partially through the suction inlet opening for agitating a surface... | 03/30/2004 |
| 6658693 | Hand-held extraction cleaner with turbine-driven brush The invention relates to a hand-held extraction cleaner including a cleaning fluid supply system for supplying a cleaning fluid to a surface, a dirt recovery system including a source of suction fluidly connected to the surface through a cleaning fluid re... | 12/09/2003 |
| 6615445 | Vacuum cleaning tool with direct flow turbine A vacuum cleaning tool has a housing with a brush chamber and a turbine chamber. A vacuum connector is connected to the housing remote from the brush chamber and has an outlet window. A working roller is arranged in the brush chamber and driven by an air ... | 09/09/2003 |
| 6594855 | Roadway cleaning apparatus An apparatus for cleaning of a roadway, in particular a starting/landing runway of an airport, comprising distributor devices (13, 14, 18) pivotally arranged on and rotated by a driving shift (6) inside a housing (1) in order to apply a high pressure flui... | 07/22/2003 |
| 6581240 | Brush attachment for vacuum cleaners A brush attachment for vacuum cleaners comprises a housing consisting of a bottom part and a top part, a turbine wheel driven by the suction air stream, a brush roller driven by the turbine wheel, and a suction tube connection constructed in the form of a... | 06/24/2003 |
| 6571424 | Device for removing dust and rubbish A device for removing dust and rubbish includes a casing provided with a suction opening, a rotating brush, a turbine operationally connected to the brush, a suction nozzle located between the brush and the turbine, and a suction pipe connected to a sucti... | 06/03/2003 |
