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| Number | Title | Issue Date |
| 7441303 | Pavement/surface sweeper having a simplified hydraulic system A sweeper unit well-suited for use for sweeping paved areas includes a debris-retaining hopper with an associated fan assembly that includes an air outlet duct for connection to one side of a pick-up head and an inlet duct for connection between the other side of th... | 10/28/2008 |
| 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 |
| 7341612 | Disposable vacuum bags A disposable open bag for a power tool such as a Shop-Vac cleaner has a mounting plate with an opening for receiving debris from the intake of the power tool. The mounting plate is also provided with a vent opening(s), e.g., to prevent the bag from closing in on the... | 03/11/2008 |
| 7281296 | Debris collection systems, vehicles, and methods The invention provides debris collection devices that include a debris contacting mechanism, a debris transport mechanism that is configured to receive debris moved by the debris contacting mechanism at an inlet and move such debris towards a debris storage compartm... | 10/16/2007 |
| 7279021 | Suction device/blower A manually-guided, portable suction device/blower is provided, and includes a blower unit having a motor for driving the blower unit, a blower tube that extends from the blower unit, a collection bag, wherein during suction operation of the suction device/blower, th... | 10/09/2007 |
| 7266862 | Suction apparatus of cleaner A suction apparatus of a cleaner includes: a suction motor inserted in a cleaner body and generating a suction force; a filter for collecting dust or filth sucked by a suction force generated for the suction motor; a suction head connected to the filter by a suction... | 09/11/2007 |
| 7246409 | Manually-powered floor sweeper with vacuum port A manually-powered floor sweeper is provided according to the invention. In one embodiment, the manually-powered floor sweeper includes a chassis and handle, one or more agitator rollers rotatably affixed to the chassis and rotated by movement of the floor sweeper, ... | 07/24/2007 |
| 7240732 | Dispersant compositions for cement compositions and related methods The present invention relates to cementing operations, and more particularly to improved cement dispersants for cement compositions and methods of cementing. In one embodiment, the present invention provides a method of cementing comprising the steps of: providing a... | 07/10/2007 |
| 7240396 | Floor cleaning apparatus A floor cleaner is provided for cleaning a floor, where the floor cleaner has a front and a rear and includes: a sweeper for sweeping the floor; a scrubber, connected to the sweeper and located in the rear of the sweeper, for wetting and cleaning the floor; and a bu... | 07/10/2007 |
| 7238243 | Motorized towable sweeping apparatus and related method A towable sweeping apparatus includes a housing supported by a plurality of surface-engaging wheels and an impeller mounted to the housing and adjustable relative to the surface. The impeller includes a plurality of blades rotatable about an axis. A space permitting... | 07/03/2007 |
| 7220938 | System and method for removing particulate created from a drilled or cut surface A system and method for receiving and collecting particulate matter from drilled or cut holes in a tablet on a turntable and transporting said particulate to a remote location is described. ... | 05/22/2007 |
| 7199711 | Mobile floor cleaner data communication In a method of communicating data from a mobile floor cleaner to a remote receiver a data communication is initiated from a communicator of the mobile floor cleaner to the remote receiver and data is communicated to the remote receiver with the communicator. ... | 04/03/2007 |
| 7162771 | Floor cleaning machine with dust control apparatus and associate method of use A floor cleaning machine with dust control apparatus can assist in capturing dust created as a by-product during normal operations. The dust control apparatus is particularly applicable to propane-powered burnishers that use rotating pads to remove built up wax from... | 01/16/2007 |
| 7134166 | Upright vacuum cleaner with cyclonic airflow A vacuum cleaner includes a first housing defining a cyclonic airflow chamber and a second housing defining a main suction opening that is in communication with an inlet of the cyclonic chamber. A suction source has a suction airstream inlet in communication with an... | 11/14/2006 |
| 7131165 | Upright vacuum cleaner with cyclonic airflow A vacuum cleaner includes a first housing defining a cyclonic airflow chamber and a second housing defining a main suction opening that is in communication with an inlet of the cyclonic chamber. A suction source has a suction airstream inlet in communication with an... | 11/07/2006 |
| 7124463 | Conveyor lip for motorized street sweeper A street sweeper system is used typically in a motorized vehicle. The sweeper utilizes a cylindrical brush rotating about an axis that is typically perpendicular to the vehicle's direction of motion. A conveyor belt catches debris thrown forwards and upward by the b... | 10/24/2006 |
| 7118607 | Filter stop for a vacuum cleaner A filter stop for a vacuum cleaner contains a dust chamber that is closable with a lid and receives a dust bag with a reinforcement plate in a specific fitting position. The filter stop has a base plate that is movable between two stopping positions parallel to the ... | 10/10/2006 |
| 7086118 | Street sweeper with vacuumized dust control A street sweeper with vacuumized dust control where a rotary broom chamber surrounds a rotary broom. The rotary broom chamber connects by a conveyor housing containing a conveyor mechanism to a hopper having a powered fan and a filter. A vacuum or low pressure is cr... | 08/08/2006 |
| 7063730 | Filter with end cap base retainer A filter includes a filter element mounted to a base and having first and second end caps spaced axially along an axis. Fluid to be filtered flows laterally through the filter element and axially through a hollow interior and through an axial flow opening of the sec... | 06/20/2006 |
| 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 |
| 7051399 | Cleaner cartridge A cleaner cartridge includes a container having an interior cavity, in which cleaning agent can be stored. A first end of conduit is fluidically coupled to the interior cavity. A second end of the conduit is connectable to a chemical dispenser. ... | 05/30/2006 |
| 7013527 | Floor cleaning apparatus with control circuitry A floor cleaner is provided for cleaning a floor, where the floor cleaner has a front and a rear and includes: a sweeper for sweeping the floor, a scrubber, connected to the sweeper and located in the rear of the sweeper, for wetting and cleaning the floor; and a bu... | 03/21/2006 |
| 6990709 | Vacuum sweeping system for automatic scrubber A vacuum sweeper is cantilevered to a hinged bracket mounted to the front of a conventional automatic floor scrubber. The sweeper includes a vacuum head, an overlying debris ramp, and two vertically rotating, conical brushes having their base ends in contact with th... | 01/31/2006 |
| 6966097 | Street sweeper with dust control Street sweeper having dust control from two or more cleaning heads with one air source where one fan provides vacuum for a centrally located rotating broom which is surrounded by a vacuumized chamber and for a gutter broom which is surrounded by a vacuumized chamber... | 11/22/2005 |
| 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 |
| 6959466 | Power management system for street sweeper A power management system for a surface maintenance machine, such as a street sweeper is disclosed. The system includes a variable speed engine for transporting the surface maintenance machine, a hydraulic pump powered by the engine, a vacuum fan motor powered by th... | 11/01/2005 |
| 6932182 | Traveling car A traveling carriage equipped with a traveling means to travel on and along a surface of an object. A frame of the traveling carriage is composed of two divided frames to the right and to the left in the forward traveling direction, one frame having an arc-shaped sl... | 08/23/2005 |
| 6918603 | Scrub-mate A novel solution for converting a walk behind floor scrubber into a sit and ride behind floor scrubber. The present invention consists of a chassis frame to which five wheels are attached. Two of the front wheels pivot and the up-front safety wheel does not. The whe... | 07/19/2005 |
| 6902594 | Industrial dust-collector An industrial dust-collector is provided with an air blower in the bottom of the base. An air-inlet line and an air-out line are provided at the front of the air blower. A cover is provided on the top of the base, a sucking pipe is provided at the top of the cover, ... | 06/07/2005 |
| 6675424 | Litter vacuum A mobile litter pickup vehicle has a pair of forward corner brushes independently mounted on articulated arms so that the brushes may be moved in the event an obstacle is encountered to avoid damage to the brushes or to the object. An air recirculating sy... | 01/13/2004 |
| 6484353 | Riding type sweeper with rear-mounted engine A riding type sweeper with a rear-mounted engine and a driven sweeper roller located between the front axle and the rear axle, wherein the sweeper roller transports the dirt into a coarse dirt container disposed behind the sweeper roller, from which the f... | 11/26/2002 |
| 6444003 | Filter apparatus for sweeper truck hopper A filter apparatus (10) for use in a hopper section (11) of a sweeper truck includes: (a) a horizontal, rectangular, screened main frame portion (20) for attachment within the hopper section (11), (b) a mechanism for attaching the filter apparatus (10) to... | 09/03/2002 |
| 6342084 | Vacuum cleaner A vacuum cleaner apparatus (10) is provided which includes a vacuum motor (16), an air pervious membrane (26) and an air pervious material collection bag (22). The vacuum motor (16) is arranged to draw air downwardly in turn through the bag (22), the memb... | 01/29/2002 |
| 6230363 | Large-scale cleaning vehicle A large-scale cleaning vehicle, for operation with a forklift, includes rotation brushes for sweeping debris toward a center of said cleaning vehicle, a sweeping brush for sweeping the debris into a debris collection box and a fan for pulling said debris ... | 05/15/2001 |
| 6195837 | Debris suctioning and separating apparatus for use in a surface sweeping vehicle having a mechanical debris elevator A debris suctioning and separating apparatus for use in a surface sweeping vehicle having an elongate cylindrically-shaped rotating sweeping broom, a debris receiving and retaining hopper, and a debris conveying mechanism to receive debris from said rotat... | 03/06/2001 |
| 6195836 | Mechanical surface cleaning vehicle for fine particulate removal A mechanical surface sweeping vehicle has a cylindrically-shaped rotating sweeping broom to propel forwardly debris disposed on a contacted portion of a surface being cleaned, thereby creating a forwardly propelled stream of debris. A mechanical debris el... | 03/06/2001 |
| 6154920 | Sweeper apparatus A sweeper apparatus is disclosed for effectively and efficiently sweeping debris from a floor surface with a minimal amount of dust being generated outside of the apparatus. The sweeper apparatus includes a sweeper head assembly having a containment housi... | 12/05/2000 |
| 6154922 | Self-propelled factory floor cleaning vehicle A self-propelled factory floor cleaning vehicle has a cylindrically-shaped rotating sweeping broom to propel forwardly debris disposed on a contacted portion of a factory floor being cleaned, thereby creating a forwardly propelled stream of debris. A hopp... | 12/05/2000 |
| 6018844 | Composite side skirt for powered sweeper A sweeping machine has a wheel supported body and a rotatable brush mounted transversely of the direction of machine movement. There is a debris hopper adjacent the brush and a dust collection chamber on the body. A vacuum fan draws dust laden air from th... | 02/01/2000 |
| 6012200 | Upright vacuum cleaner An upright vacuum cleaner includes a nozzle base (12) with at least one suction opening (60) formed therein. A rotatable brushroll (64) is positioned adjacent to the suction opening (60) for agitating a surface being cleaned. A suction source (54) is hous... | 01/11/2000 |
