公开(公告)号：US11357379B2

公开(公告)日：2022-06-14

申请号：US15975623

申请日：2018-05-09

Applicant: Nilfisk A/S

Inventor： William Randall Stuchlik ,  David Wood

IPC: A47L11/282 ,  A47L11/40

Abstract: A random orbit scrubber comprises a main body having a front end and a rear end, a squeegee assembly coupled to the rear end of the main body, and a cleaning head assembly coupled to the front end of the main body. The cleaning head assembly can include a cleaning element structured for contact with a floor surface. The cleaning head assembly can further include a motor that is operable to impart rotational and orbital movement on the cleaning element. The cleaning head assembly can also include one or more arcuate cleaning fluid manifolds each having a plurality of dispensing points to distribute cleaning fluid in one or more locations on top of and in front of the cleaning element. The arcuate cleaning fluid manifolds can include variable flow nozzles and can be mounted to a carriage that rotates about the cleaning head assembly.

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.

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.

公开(公告)号：US10076219B2

公开(公告)日：2018-09-18

申请号：US15173322

申请日：2016-06-03

Applicant: Nilfisk A/S

Inventor： Kurt Morris Vetse ,  Kale R. Johnson ,  Michael Kanitz ,  Jerome A. Gunn

IPC: A47L11/30 ,  A47L11/40

CPC classification number: A47L11/305 ,  A47L11/4011 ,  A47L11/4016 ,  A47L11/4038 ,  A47L11/4041 ,  A47L11/4044 ,  A47L11/4055 ,  A47L11/4061 ,  A47L11/4066 ,  A47L11/4069 ,  A47L11/4072 ,  A47L11/4077 ,  A47L11/4083

Abstract: A floor scrubber machine can comprise a chassis, a scrub deck and a propulsion system. The scrub deck can include a hands-free, double-scrub side skirt mechanism, and a dual mode side blade assembly. The chassis can include a rear squeegee assembly having a self-aligning hanger system with balanced handles. The propulsion system can include a throttle pedal having a button for forward/reverse control, and a control panel having a setting for rescaling the acceleration profile. A disc brush scrub deck can include a brush centering mechanism. A cylindrical brush scrub deck can include an idler end brush cover with self-aligning tabs, and a self-contained drive mechanism.

公开(公告)号：USD782759S1

公开(公告)日：2017-03-28

申请号：US29505657

申请日：2015-12-23

Applicant: Nilfisk A/S

Designer： Henrik Mathiassen ,  Steen Klimt Johannesen ,  Thomas Elmer

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.

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.

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).

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).

公开(公告)号：US20190014965A1

公开(公告)日：2019-01-17

申请号：US16006629

申请日：2018-06-12

Applicant: Nilfisk A/S

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

IPC: A47L11/40 ,  A47L11/20 ,  A47L11/162 ,  A47L11/30 ,  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.