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    Water trailing detection system
    11.
    发明授权
    Water trailing detection system 有权

    公开(公告)号：US11083357B2

    公开(公告)日：2021-08-10

    申请号：US16006629

    申请日：2018-06-12

    Applicant: Nilfisk A/S

    Inventor： Kipp Knutson ,  Stuart McDonald ,  Stephen Klopp ,  John Black ,  Dave Wood ,  Donald Joseph Legatt

    IPC: A47L11/40 ,  A47L11/162 ,  A47L9/28 ,  A47L11/30 ,  A47L11/20 ,  A47L11/206

    Abstract: A floor cleaning machine can comprise a chassis, a cleaning mechanism, a control system, and a cleaning operation sensing system connected to the chassis. The chassis can be configured for movement along a cleaning path. The cleaning mechanism can perform a cleaning operation. The liquid system can provide liquid to the cleaning mechanism. The recovery system can recover liquid from the cleaning operation. The control system can control performance of the cleaning operation. The cleaning operation sensing system can detect a condition of the cleaning operation. The cleaning operation sensing system can comprise a water trailing detection system comprising: a frame connected to the chassis aft of the recovery system; an absorbent medium connected to the frame; and a moisture sensor in communication with the control system to alter a signal in response to moisture in the absorbent medium.

    Filter element and dirt suction device with filter receptacle for such a filter element
    12.
    发明授权
    Filter element and dirt suction device with filter receptacle for such a filter element 有权

    公开(公告)号：US10596502B2

    公开(公告)日：2020-03-24

    申请号：US15496456

    申请日：2017-04-25

    Applicant: Nilfisk A/S

    Inventor： Anders Foenss

    IPC: A47L9/12 ,  B01D46/00 ,  B01D46/10 ,  B01D46/52 ,  A47L9/10

    Abstract: A filter element for a dirt suction device is provided, with a filter frame, on which a filter medium is attached, wherein on the filter frame, a continuous seal is arranged, the inner circumferential surface of which is arranged on an outer circumferential surface of the filter frame and has a section that radially protrudes over the filter frame, wherein a groove is arranged on a front side of the protruding section of the seal, and that a sealing surface is arranged on the opposite front side of the protruding section of the seal.

    Portable cleaning system
    15.
    发明授权
    Portable cleaning system 有权
    便携式清洁系统

    公开(公告)号：US07950103B2

    公开(公告)日：2011-05-31

    申请号：US12482779

    申请日：2009-06-11

    Applicant: Susan J. Williamson ,  Glen E. Moore

    Inventor： Susan J. Williamson ,  Glen E. Moore

    IPC: A47L5/24

    CPC classification number: A47L5/36 ,  A47L5/225 ,  A47L9/009 ,  A47L9/2842 ,  A47L9/2857 ,  A47L9/2873 ,  A47L9/2884 ,  A47L11/34 ,  A47L11/4005 ,  A47L11/4061

    Abstract: A portable vacuum cleaning system includes a portable vacuum unit for cleaning debris. The vacuum unit is powered by a self-contained first battery and may be carried with a strap in backpack-fashion. The system also includes a cart defining a receptacle for receiving the vacuum unit. The vacuum unit may be used when supported by the cart or when carried by an operator. A second battery is supported by the cart and electrically connectable to the vacuum unit for charging the first battery when the vacuum unit is supported by the cart. Further, when disposed in the cart, the vacuum unit is disposed at an angle of about 45 degrees allowing for ease of movement of the cart.

    Abstract translation: 便携式真空清洁系统包括用于清洁碎片的便携式真空单元。 真空单元由独立的第一电池供电，并且可以带有背包式的带子。 该系统还包括限定用于接收真空单元的容器的推车。 当由推车支撑或当由操作者承载时，真空单元可以被使用。 第二电池由推车支撑并且当真空单元由推车支撑时可电连接到真空单元以对第一电池充电。 此外，当设置在推车中时，真空单元以大约45度的角度设置，以便于推车的移动。

    EDGE CLEANING BY ROBOTIC CLEANING MACHINE
    16.
    发明申请
    EDGE CLEANING BY ROBOTIC CLEANING MACHINE 有权

    公开(公告)号：US20230009583A1

    公开(公告)日：2023-01-12

    申请号：US17854296

    申请日：2022-06-30

    Applicant: Nilfisk A/S

    Inventor： Brian Wicks ,  Andrew Graham

    IPC: A47L11/40 ,  G05D1/02

    Abstract: A method of controlling the robotic floor cleaning machine is disclosed that includes sensing, by a sensor on the robotic cleaning machine, an object within a sensed field. The method further includes determining, by a safety controller on the robotic cleaning machine, whether the object is an immovable object (such as a wall), and deploying an extendable cleaning element to clean the floor surface up next to the wall. The method can further include deploying the extendable cleaning element such that the extendable cleaning element is in contact with and cleans the floor up to an edge of the immovable object. Additionally, the method can include determining that the object is a movable object (such as a living thing) and preventing the extendable cleaning element from extending such that the robotic cleaning machines does not contact the movable object.

    Mobile robotic cleaner
    17.
    发明授权
    Mobile robotic cleaner 有权

    公开(公告)号：US11432698B2

    公开(公告)日：2022-09-06

    申请号：US16885835

    申请日：2020-05-28

    Applicant: Nilfisk A/S

    Inventor： Kipp Knutson ,  Stuart McDonald ,  Stephen Klopp ,  John Black ,  Dave Wood ,  Donald Joseph Legatt

    IPC: A47L11/40 ,  A47L11/30

    Abstract: A control system for a robotic floor cleaning machine configured to perform a cleaning operation along a cleaning path can comprise a controller, and a plurality of sensors. The controller can be configured to control autonomous movement of the robotic floor cleaning machine along the cleaning path and autonomous performance of the cleaning operation. The plurality of sensors can be configured to sense a location of the robotic floor cleaning machine relative to surroundings of the robotic floor cleaning machine. At least two sensors from the plurality of sensors are configured to locate the robotic floor cleaning machine in overlapping areas of the surroundings.

    DIRT COLLECTING DEVICE FOR A CLEANING DEVICE, PARTICULARLY A SWEEPING VEHICLE, AND VACUUM CLEANER NOZZLE FOR A VACUUM CLEANER, AND METHOD FOR OPERATING BOTH DEVICES
    18.
    发明申请
    DIRT COLLECTING DEVICE FOR A CLEANING DEVICE, PARTICULARLY A SWEEPING VEHICLE, AND VACUUM CLEANER NOZZLE FOR A VACUUM CLEANER, AND METHOD FOR OPERATING BOTH DEVICES 有权

    公开(公告)号：US20220183521A1

    公开(公告)日：2022-06-16

    申请号：US17686907

    申请日：2022-03-04

    Applicant: Nilfisk A/S

    Inventor： Peter Noehr Larsen ,  Martin Walters Schmidt

    IPC: A47L9/14 ,  A47L11/40 ,  A47L11/24 ,  E01H1/08 ,  A47L5/30 ,  A47L9/00 ,  A47L9/04 ,  A47L9/10 ,  A47L9/28

    Abstract: Method for operating a dirt collecting device for a sweeping vehicle or for a vacuum cleaner nozzle of a floor or upright vacuum cleaner, which each comprise a suction fan with controllable speed and/or power, wherein in a first method step, the suction power of the suction fan is set at such a low level that the suction pressure in the dirt collecting device or the vacuum cleaner nozzle is merely sufficient to convey and deposit the absorbed coarse dirt into the intermediate container, and to convey the absorbed fine dirt into a downstream collection container, (normal operation); and that in a second method step, the filling level in the intermediate container is detected with respect to the coarse dirt deposited therein; and that in a third method step, if the filling level in the intermediate container is exceeded, the suction power of the suction fan is increased such that the coarse dirt, which is temporarily deposited in the intermediate container, becomes dispersible and is conveyed into the downstream collection container (emptying mode).

    Dirt collecting device for a cleaning device, particularly a sweeping vehicle, and vacuum cleaner nozzle for a vacuum cleaner, and method for operating both devices
    19.
    发明授权
    Dirt collecting device for a cleaning device, particularly a sweeping vehicle, and vacuum cleaner nozzle for a vacuum cleaner, and method for operating both devices 有权

    公开(公告)号：US11311161B2

    公开(公告)日：2022-04-26

    申请号：US15561999

    申请日：2016-03-23

    Applicant: Nilfisk A/S

    Inventor： Peter Noehr Larsen ,  Martin Walters Schmidt

    IPC: A47L9/14 ,  A47L9/10 ,  A47L9/28 ,  A47L11/40 ,  A47L11/24 ,  E01H1/08 ,  A47L5/30 ,  A47L9/00 ,  A47L9/04

    Abstract: Method for operating a dirt collecting device for a sweeping vehicle or for a vacuum cleaner nozzle of a floor or upright vacuum cleaner, which each comprise a suction fan with controllable speed and/or power, wherein in a first method step, the suction power of the suction fan is set at such a low level that the suction pressure in the dirt collecting device or the vacuum cleaner nozzle is merely sufficient to convey and deposit the absorbed coarse dirt into the intermediate container, and to convey the absorbed fine dirt into a downstream collection container, (normal operation); and that in a second method step, the filling level in the intermediate container is detected with respect to the coarse dirt deposited therein; and that in a third method step, if the filling level in the intermediate container is exceeded, the suction power of the suction fan is increased such that the coarse dirt, which is temporarily deposited in the intermediate container, becomes dispersible and is conveyed into the downstream collection container (emptying mode).

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