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公开(公告)号：US6065183A
公开(公告)日：2000-05-23
申请号：US51427
申请日：1998-08-13
Applicant: Nils Preben Hammeken , Benny Matthiassen
Inventor： Nils Preben Hammeken , Benny Matthiassen
Abstract: A connecting element for coupling of the suction pipe (3) of a suction cleaner to a mouthpiece (2) having a suction sole (9) with an abutment surface (10) and an elongated suction slot which debouches on the abutment surface (10) of the suction sole (9), and wherein the connecting element comprises flexible joints (4, 5, 7, 8) which may transmit an angle change of the suction pipe (3) of the vacuum cleaner about the longitudinal axis of the suction pipe to a rotation of the vacuum cleaner mouthpiece in the plane of the abutment surface (10), and also allows a freedom of movement between the vacuum cleaner mouthpiece (2) and the vacuum cleaner suction pipe (3) whereby the abutment surface may freely assume different orientations relative to the longitudinal axis of the suction pipe. According to the invention the flexible joint has a freedom of movement which allows the suction pipe to be freely movable about an axis (8a) which is parallel with the suction slot in an angle (.alpha.) outwards to both sides of a plane (11) which is perpendicular to the plane of the abutment surface (10) and extends along and through the elongated suction slot, and the suction pipe (3) has or may assume an angle (.beta.) in the plane (11) which is perpendicular to the plane of the abutment surface (10), said angle (.beta.) being, relative to the plane (10) of the abutment surface, less than 80.degree..
Abstract translation: PCT No.PCT / DK96 / 00439 Sec。 371日期1998年8月13日 102（e）1998年8月13日PCT PCT 1996年10月14日PCT公布。 第WO97 / 13445号公报 日期1997年04月17日用于将抽吸清洁器的吸入管（3）与具有带有抵靠表面（10）的吸力鞋底（9）的吸嘴（2）联接的连接元件和在其上脱落的细长的吸入槽 吸附鞋底（9）的邻接表面（10），并且其中连接元件包括柔性接头（4,5,7,8），其可以将真空吸尘器的吸入管（3）的角度变化围绕纵向 吸入管的轴线相对于邻接表面（10）的平面中的真空吸尘器吸嘴的旋转，并且还允许真空吸尘器吸嘴（2）和吸尘器吸入管（3）之间的自由运动，由此 邻接表面可以相对于抽吸管的纵向轴线自由地呈现不同的取向。 根据本发明，柔性接头具有运动自由度，其允许吸管能够围绕平行于平面（11）的两侧的角度（α）的与吸入槽平行的轴线（8a）自由移动， 其垂直于所述邻接表面（10）的平面并且沿着并穿过所述细长的吸入槽延伸，并且所述吸入管（3）具有或可以在所述平面（11）中具有或可以呈现垂直于 邻接表面（10）的平面，所述角度（β）相对于邻接表面的平面（10）小于80°。
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公开(公告)号：US20250113967A1
公开(公告)日：2025-04-10
申请号：US18430179
申请日：2024-02-01
Applicant: Nilfisk A/S
Inventor： Thomas J. Suelflow , Kurt Vetse , Stephen Klopp
IPC: A47L11/40 , A46B13/00 , A46B13/02 , A47L9/00 , A47L9/28 , A47L11/24 , A47L11/292 , B60B19/00 , B60K1/02
Abstract: A cleaning machine includes a driving assembly, a cleaning element, and a controller assembly. The driving assembly includes a pair of drive wheels, a rear motor, a multi-directional wheel, and a front motor. Each wheel of the pair of drive wheels is configured to be driven independently of the other wheel of the pair of drive wheels. The rear motor is operably coupled to the pair of drive wheels and is disposed to drive at least one wheel of the pair of drive wheels. The multi-directional wheel is disposed forward of the pair of drive wheels. The front motor is operably coupled to is disposed to steer the multi-directional wheel. The cleaning element is disposed forward of the pair of drive wheels. The controller assembly is disposed to control at least one of the rear motor, the front motor, or a combination thereof.
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公开(公告)号：US20250064282A1
公开(公告)日：2025-02-27
申请号：US18727556
申请日：2023-02-01
Applicant: Nilfisk A/S
Inventor： Mikael Hansen
Abstract: A method of operating a vacuum device includes operating the vacuum device. Voltage is provided to a turbine of the vacuum device to spin a rotary element of the turbine. A flow of air is drawn through a portion of the vacuum device in response to spinning the rotary element of the turbine. A pressure difference between a first location inside the vacuum device and a second location inside the vacuum device. The first location is disposed upstream relative to a direction of the flow of air from the turbine. The first location is also disposed downstream relative to the direction of the flow of air from a filter element of the vacuum device. An amount of voltage across the turbine is adjusted in response to the measured pressure difference. A performance characteristic of the turbine is monitored.
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公开(公告)号：US20240180382A1
公开(公告)日：2024-06-06
申请号：US18504842
申请日：2023-11-08
Applicant: Nilfisk A/S
Inventor： Alexandros Matthaios
CPC classification number: A47L11/4008 , A47L11/4011 , G06F3/1423 , G06F3/147 , G06V20/50 , G06V40/10
Abstract: A method of operating a cleaning machine can include determining if a human is detected nearby. If a human is not detected, the process can restart. If a human is detected, then a determination can be made if there is emergency information to show. If there is emergency information to be shown, then the emergency information can be shown. If there is no emergency information to be shown, then an attention seeking mode can be enabled. The presence of a target group can be determined. The availability of content relevant to the target group can be determined. If content relevant to the target group is available, then the content can be displayed. If content relevant to the target group is not available, then the method can restart or return to a previous step.
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公开(公告)号：US20240110726A1
公开(公告)日：2024-04-04
申请号：US17957586
申请日：2022-09-30
Applicant: Nilfisk A/S
Inventor： Hans Jørgen Bank Olesen , Leif Nørgaard Christensen
IPC: F24H9/1832 , F24H9/02
CPC classification number: F24H9/1832 , F24H9/02
Abstract: A heating unit for heating a fluid includes a tank, a burner element, and a lower unit. The tank defines top and bottom ends and includes an outer wrap, an inner wrap, and a cooling chamber. The outer wrap extends along an axial centerline defined by the tank. The inner wrap is disposed within the outer wrap. The cooling chamber is defined in-part by and is disposed between the inner and outer wraps along a radial direction of the tank. The burner element is disposed on the top end of the tank. The blower unit is disposed on the bottom end of the tank and is in fluid communication with the burner element via the cooling chamber. An outlet of the blower unit is disposed along the axial centerline of the tank.
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Patent Agency Ranking
公开(公告)号：US20220197293A1
公开(公告)日：2022-06-23
申请号：US17270707
申请日：2019-08-27
Applicant: Nilfisk A/S
Inventor： Claus Thybo , Rasmus Pedersen
Abstract: The invention provides an autonomous surface treatment vehicle, e.g. a floor cleaner, with an autonomy system navigating according to a map, a scanning sensor to detect a position of an obstacle within a scanning zone and generate a detection signal. A safety system is arranged to generate a safety stop in case the detection signal indicates an obstacle within a safety zone. The safety system can enter a special mode of operation, e.g. upon request from the autonomy system, where a special safety zone selection algorithm selects the safety zone e.g. from a special set of pre-determined safety zones. Especially, such special mode can provide safety zones with a relaxed speed limit in combination with a restricted direction limit, so as to provide a faster driving near a wall or similar known obstacle.
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公开(公告)号：US10674882B2
公开(公告)日：2020-06-09
申请号：US15512362
申请日：2015-09-15
Applicant: NILFISK A/S
Inventor： Henrik Mathiassen , Steen Klimt Johannesen , Thomas Elmer , Trine Baek Nielsen
Abstract: An adapter device for arranging a container (4, 6) on the upper face (5) of a cleaning device (9), said adapter device consisting of an adapter plate (1, 2) with a support surface (13, 15) and at least one locking element for locking the container in place on the (4, 6) adapter plate. The adapter plate (1, 2) is divided into at least two parts and consists of a front adapter plate (1) and a rear adapter plate (2) which can be separately mounted on the upper face (5) of the cleaning device (9).
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公开(公告)号：US10470632B2
公开(公告)日：2019-11-12
申请号：US14786682
申请日：2014-03-14
Applicant: Nilfisk-Advance A/S
Inventor： Anders Foenss
Abstract: A method for operating a suction-type cleaner, in which, in a manner controlled in the filter dedusting position by an electromagnetically actuated switchover valve arrangement (19, 20, 21), at least one filter (9), through which the dirt-laden air flow passes, is dedusted in the opposite direction to said air flow, and the dirt-laden suction air from the dirt-collecting container (1) firstly passes through the at least one filter (9) which is adjoined, in the flow direction, by a suction chamber (12), which is adjoined downstream by an intermediate chamber (26) which is arranged on the suction side of the turbine (30), and a pressure chamber (34) is arranged downstream of the turbine (30), wherein, in order to reduce the actuating force of the switchover valve arrangement (19, 20, 21) in the dedusting position of the suction-type cleaner, the pressure between the pressure chamber (34) and the intermediate chamber (26) is equalized.
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公开(公告)号：US20180049615A1
公开(公告)日：2018-02-22
申请号：US15560761
申请日：2016-03-01
Applicant: NILFISK A/S
Inventor： Giancarlo VETRUCCI , Alfonso COLLETTI
CPC classification number: A47L11/4058 , E01H1/045
Abstract: The present invention relates to a motor-sweeper for cleaning large surfaces such as streets or industrial facilities. In particular it refers to an apparatus for collecting garbage and debris from the ground to apply to a motor-sweeper, wherein the broom for collecting garbage always remains adherent to the ground and the space between the garbage conveyor assembly toward the collecting container and the broom, and between the broom and the container remains uniform despite the wear of the brooms. Thus, the cleaning capability is not lost and the machine efficiency is improved.
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