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| Number | Title | Issue Date |
| 7500284 | Turf sweeper and debris removal machine A turf sweeping machine having a frame, front and rear wheels coupled to the frame and an elongated chute mounted to the frame, the chute having an exit and an entrance at a level proximate to the grass of the turf. Rubber skirts are affixed to the chute and extend ... | 03/10/2009 |
| 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 |
| 7430784 | Vacuum-cleaning apparatus for a stable A vacuum-cleaning apparatus for a stable, the apparatus adapted for being towed behind a powered vehicle having a power take off unit and including a two-wheel trailer; a tank with an air-tight cavity mounted on the trailer; a hydraulic pump powered by the power tak... | 10/07/2008 |
| 7428767 | Sweeper including floating brush or drum assembly A sweeper including a rotating brush or drum supported by a float arm movably coupled to a bucket. The float arm is coupled to a linkage to movably support the float arm between a retracted position and a forward position. Float arm is supported independently of a h... | 09/30/2008 |
| 7424766 | Sensors and associated methods for controlling a vacuum cleaner A cleaning appliance includes a housing with a brushroll and a wheel mounted thereto. A floor-type sensor is disposed within a mounting tube secured to the housing. The floor-type sensor emits sonic energy toward a surface being traversed by the cleaning appliance a... | 09/16/2008 |
| 7424767 | Street sweeper with litter hose Provided is a street sweeper for collecting debris from a street surface. The street sweeper includes a chassis mounted on wheels, a rotating broom for removing debris from a street surface, and a hopper for collecting the removed debris. A passageway extends betwee... | 09/16/2008 |
| 7421758 | Upright vacuum cleaner with swing brush Disclosed herein is an upright vacuum cleaner with a swing brush. The upright vacuum cleaner comprises an upright cleaner body having a suction nozzle, a drive unit mounted in the cleaner body for moving the cleaner body forward or rearward, a grip unit slidably mou... | 09/09/2008 |
| 7395572 | Rotating brush controlling apparatus in a floor sweeping machine Provision is made for a rotating brush controlling apparatus (8) in a floor sweeping machine (1), comprising: a lifting device (15) suitable for applying a lifting force (15a) which is capable of lifting a rotating brush (8)... | 07/08/2008 |
| 7370386 | Dual cleaning mode carpet extractor A carpet extractor (10) operable in either a restorative cleaning mode or a maintenance cleaning mode includes a constant rate pump (96) which dispenses clean solution through a manually operated valve (98) to one of two lines (100, 102) ... | 05/13/2008 |
| 7367080 | Upright vacuum cleaner with movement control grip Disclosed herein is an upright vacuum cleaner having a movement control grip that is capable of performing switch between automatic operation mode and manual operation mode on the movement control grip. The grip comprises a grip body, having a square section, connec... | 05/06/2008 |
| 7363680 | Floor-cleaning machine with manual adjustment for two distinct and repeatable fluid flow rates A floor-cleaning machine (10) has a chassis (12) that is mobile on a surface and carries an agitating mechanism (14) to engage the surface. A fluid delivery system (18) conveys fluid from a reservoir (16) to the surface proximate t... | 04/29/2008 |
| 7350264 | Mobile vacuum sweeper A vacuum sweeper vehicle has a sweeper body including a frame. A pair of front wheels are supported by an axle apparatus at a forward end of the sweeper body. The axle apparatus is constructed to provide a space between the front wheels. A pair of rear wheels are su... | 04/01/2008 |
| 7337490 | Floor cleaning apparatus A cleaning apparatus having a cleaning system including at least one downwardly directed spray nozzle is supported by the chassis proximal the chassis forward end and in fluid communication with at least one cleaning solution tank. The at least one spray nozzle spra... | 03/04/2008 |
| 7320149 | Robotic extraction cleaner with dusting pad An vacuum cleaning robot has a drive system adapted to autonomously move a base housing along a horizontal surface and is controlled by a computer processing unit. A dusting assembly is mounted to the base housing and is adapted to selectively rest on a surface to b... | 01/22/2008 |
| 7302734 | Ground cleaning machine A mobile floor or ground cleaning machine includes a hydraulic motor for propulsion and/or operating a cleaning brush. Airflow produced by a fan is directed through a housing located adjacent the cleaning brush for creating an area of low pressure adjacent the brush... | 12/04/2007 |
| 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 |
| 7275280 | Wheel support arrangement for an autonomous cleaning apparatus A carrier, such as an autonomous cleaning apparatus, has a self-adjusting wheel assembly that can move vertically, thereby enabling the carrier to readily pass over a surface. The wheel assembly may include microswitch, which activates a control mechanism for the ca... | 10/02/2007 |
| 7246405 | Self-moving vacuum cleaner with moveable intake nozzle A self-moving vacuum cleaner includes a duct disposed in a casing and having a vacuum inlet which extends downwardly of a bottom wall of the casing, and an impeller disposed to draw dust from the floor surface through the vacuum inlet into the duct. An intake nozzle... | 07/24/2007 |
| 7247085 | Combination edger and grinder for floors A combined floor edger and grinder having a grinding disk which can be adjusted from engaging the floor while flat to engaging the floor along a front, back or side edge of the disk, depending on the height adjustment of the wheels on either side of the frame. The w... | 07/24/2007 |
| 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 |
| 7237298 | Sensors and associated methods for controlling a vacuum cleaner Several methods of controlling a vacuum cleaner (10) using various types of sensors (94, 96, 97, 98) are provided. One method is based on a differential pressure between a suction airflow path and ambient air and includes: detecting the differential pr... | 07/03/2007 |
| 7200892 | Robot cleaner with adjustable brush A robot cleaner with a pivotable brush which pivots in accordance with a condition of a floor surface to be cleaned. The pivotal brush prevents overload to a suction motor caused by excessive contact of the brush with the floor surface to be cleaned. The robot clean... | 04/10/2007 |
| 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 |
| 7172658 | Cleaning liquid dispensing in a mobile hard surface cleaner A hard surface cleaner includes a motorized scrub head, a fluid recovery device, a primary cleaning liquid component container, a cleaning agent container, a flow control device and a fluid flow path. The flow control device is configured to supply a flow of cleanin... | 02/06/2007 |
| 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 |
| 7093318 | Device for carrying out work on a surface and method for operating the device To treat a surface by a device attracted to the surface by vacuum, it is necessary in most cases to guide a working device with a certain contact pressure over the surface. To be able to set the contact pressure of the working device with little effort, the device a... | 08/22/2006 |
| 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 |
| 7062816 | Surface cleaner with power drive A portable surface cleaning apparatus comprises a fluid dispensing system including at least one fluid supply tank, a dispensing nozzle connected to the fluid supply tank through a fluid supply conduit for applying a cleaning fluid to a surface to be cleaned, a flui... | 06/20/2006 |
| 7059012 | Robot vacuum cleaner with air agitation A robot vacuum cleaner comprises a cleaner body having a wheel disposed at a lower portion and a suction port through which contaminants are drawn in from a cleaning surface; and an air circulating mechanism for filtering out contaminants from the contaminant-laden ... | 06/13/2006 |
| 7059015 | Tool mounting assembly for a surface maintenance machine A squeegee mount and assembly which cooperate to permit both pivotal and linear motion of the squeegee assembly relative to the machine frame. To avoid contact with a stationary object, the squeegee assembly can be both pivoted and linearly moved relative to the sur... | 06/13/2006 |
| 7055210 | Floor treatment system with self-propelled and self-steering floor treatment unit The invention relates to a floor treatment system with a self-propelled and self-steering floor treatment unit, which comprises an electrically driven floor treatment assembly and also a rechargeable power supply unit, and with a central charging station for recharg... | 06/06/2006 |
| 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 |
| 7032682 | Unmanned vehicle for displacing manure An unmanned vehicle for displacing manure in a stable or field which comprises a steering unit for steering the vehicle and a frame. Two wheels and a manure displacing blade which depend from the frame provide the entire support for the vehicle, the vehicle's center... | 04/25/2006 |
| 7024719 | Sweeper drag shoe A sweeper drag shoe used with a rotary broom in sweeping, whereby escaping debris from under a contact skid is recaptured. The sweeper drag shoe contains a deflection plate that redirects bristle tip movement inwardly to allow the broom to recapture debris which esc... | 04/11/2006 |
| 7025834 | Retractable broom and dust skirt A gutter broom assembly for a street sweeper and method of use are disclosed. The invention relates to street sweeper having a vacuum system for moving air through a portion thereof and having a gutter broom assembly. The gutter broom assembly includes housing, a gu... | 04/11/2006 |
| 7020930 | Combination lawn care sweeper thatcher shredder A lawn sweeper is provided having rotary brushes mounted in a housing and projecting through a bottom opening in the housing for sweeping up debris. A vacuum fan with an internal shredder is also mounted to the housing and communicates through a vacuum chute with th... | 04/04/2006 |
| 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 |
| 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 |
| 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 |
