AU2020273511B2 - Cleaning apparatus for cleaning a rotatable brush roller of a cleaning appliance, and cleaning system - Google Patents

Cleaning apparatus for cleaning a rotatable brush roller of a cleaning appliance, and cleaning system Download PDF

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Publication number
AU2020273511B2
AU2020273511B2 AU2020273511A AU2020273511A AU2020273511B2 AU 2020273511 B2 AU2020273511 B2 AU 2020273511B2 AU 2020273511 A AU2020273511 A AU 2020273511A AU 2020273511 A AU2020273511 A AU 2020273511A AU 2020273511 B2 AU2020273511 B2 AU 2020273511B2
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AU
Australia
Prior art keywords
cleaning
brush roller
trough
water reservoir
depression
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
AU2020273511A
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AU2020273511A1 (en
Inventor
Alessandro Brugora
Stephen Dickel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of AU2020273511A1 publication Critical patent/AU2020273511A1/en
Application granted granted Critical
Publication of AU2020273511B2 publication Critical patent/AU2020273511B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0009Storing devices ; Supports, stands or holders
    • A47L9/0063External storing devices; Stands, casings or the like for the storage of suction cleaners
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4013Contaminants collecting devices, i.e. hoppers, tanks or the like
    • A47L11/4016Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036Parts or details of the surface treating tools
    • A47L11/4041Roll shaped surface treating tools
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408Means for supplying cleaning or surface treating agents
    • A47L11/4083Liquid supply reservoirs; Preparation of the agents, e.g. mixing devices
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02Nozzles
    • A47L9/04Nozzles with driven brushes or agitators
    • A47L9/0461Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466Rotating tools
    • A47L9/0477Rolls

Abstract

A cleaning apparatus (1) for cleaning a rotatable brush roller (13) of a cleaning appliance (11), comprising a container (2) having a depression (3) for accommodating the main body (12) of the cleaning appliance (11), said main body being provided with the brush roller (13), and also comprising a water reservoir (4), wherein the water reservoir (4) is flow-connected to the depression (3), wherein cleaning fluid introduced into the water reservoir (4) flows automatically into the depression (3), wherein the depression (3) is designed such that the water reservoir (4) is assigned to that edge of the cleaning appliance (11) which is spaced apart from the brush roller (13), wherein the brush roller (13) comes to lie at least partially against the base (17) of the depression (3).

Description

A cleaning apparatus for cleaning a rotatable brush roller
of a cleaning appliance and a cleaning system
The invention relates to a cleaning apparatus for cleaning a rotatable brush roller
of a cleaning appliance, comprising a container with a depression for receiving the
main body of the cleaning appliance being provided with said brush roller and a
water reservoir. The invention further relates to a cleaning system comprising a
cleaning apparatus and a cleaning appliance.
.0 Such a cleaning appliance is known from US Pat. No. 8,819,882 B2.
In particular for cleaning smooth floors, hand-guided cleaning appliances are used
comprising a main body with a handle fastened to it in an articulated manner,
wherein the main body accommodates a rotatable roller arrangement. The roller
arrangement is set in rotation by an electric motor integrated into the cleaning
appliance, for example by a battery-operated electric motor. The cleaning appliance
is guided over the floor to be cleaned. In this process, the rotatable roller
arrangement loosens dirt adhering to the floor. The cleaning appliance can further
be provided with a suction device which has a suction slot that is arranged adjacent
to the roller arrangement. The suction device picks up the dirt which is loosened by
the brush arrangement and conveys it into a dirt collecting chamber arranged in the
cleaning appliance.
The cleaning appliance can further comprise a device for applying cleaning fluid onto
the floor to be cleaned. The cleaning fluid comes into contact with the brush roller, as
a result of which the brush roller can loosen also firmly adhering dirt. In this instance,
there is a problem in that, over time, dirt can accumulate on the brush roller. In order
to remove the dirt from the brush roller, it is known from prior art to arrange the main
body of the cleaning appliance in a bowl-shaped container.
The cleaning apparatus comprises a container with a depression, which is suited to
accommodate the main body of the cleaning appliance. The cleaning apparatus
.0 further comprises a water reservoir wherein a cleaning fluid is held. The cleaning
fluid comes into contact with the brush roller. For the cleaning process, the brush
roller of the cleaning appliance is set in rotation. Thereby, the cleaning fluid loosens
the dirt adhering to the brush roller and the loosened contaminants pass via the
suction slot into the dirt collecting container arranged within the cleaning appliance.
.5 The present invention seeks to provide a cleaning apparatus for cleaning a rotatable
brush roller of a cleaning appliance and a cleaning system comprising a cleaning
apparatus and a cleaning appliance, which facilitates cleaning of the brush roller in a
simple and improved manner.
This may be achieved with the features outlined in the accompanying independent
claims. The subclaims refer to advantageous embodiments.
The cleaning apparatus according to the invention for cleaning a rotatable brush
roller of a cleaning appliance comprises a container having a first depression for
accommodating the main body of the cleaning appliance provided with the brush
roller and a water reservoir, wherein the water reservoir is flow-connected to the first
depression, wherein cleaning fluid introduced into the water reservoir automatically
flows into the first depression, wherein the first depression is designed in such a way
that the water reservoir is assigned to that edge of the cleaning appliance, which is
spaced apart from the brush roller, and wherein the brush roller comes to rest at
least partially against the base of the first depression.
.0 In the cleaning apparatus according to the invention, it is advantageous that the
cleaning fluid flows steadily upwards out of the water reservoir in the direction of the
brush roller. As a result, it is possible to prevent the brush roller from coming into
contact with too much cleaning fluid. Furthermore, the flow rate of the cleaning fluid
can be adjusted in such a way that a rapid and effective cleaning of the brush roller
.5 is achieved and dirty cleaning fluid is immediately discharged from the depression. In
most embodiments of cleaning appliances, the edge referred to above is defined by
the rear edge of the cleaning appliance. In these appliances, the articulated handles
are also disposed in the region of the rear edge.
For cleaning purposes, the container, which constitutes the cleaning apparatus, is
usually placed on the floor. In this instance, the water reservoir has a greater
distance from the base than the depression. As a result, the cleaning fluid can, under
gravity, automatically flow from the water reservoir into the depression.
The depression can have a first trough for accommodating the main body of the
cleaning appliance and a second trough for accommodating the brush roller, with the first trough being arranged between water reservoir and second trough. In this embodiment, the depression is adapted to the underside of the main body of the cleaning appliance, which facilitates effective cleaning of the brush roller. The second trough for accommodating the brush roller is preferably designed in the form of a semicircular recess which is adapted to the shape of the brush roller.
The first trough may have additional recesses for accommodating wheels and the
like.
A channel can be formed into the first trough, through which channel the cleaning
fluid introduced into the water reservoir automatically enters the second trough. The
.0 channel ensures that the cleaning fluid passes directly from the water reservoir into
the second trough.
The second trough can be provided with protuberances. These protuberances can
be designed, for example, as knobs. By virtue of the protuberances, a dot-wise
contact of the brush roller with the base of the second trough is achieved which
.5 improves the cleaning efficiency. In a preferred embodiment, the protuberances are
of a comb-shaped configuration. To this end, the protuberances in the form of knobs
can, for example, be arranged in a line, in a comb-like manner. Such an
arrangement of protuberances achieves a particularly thorough cleaning of the brush
roller.
At least one slot, through which the cleaning fluid introduced into the water reservoir
reaches the at least one channel, can be inserted into the wall of the water reservoir.
In this instance, the at least one slot is preferably designed in such a way that the
volume flow of the fluid into the channel is independent of the level of the cleaning fluid in the water reservoir. For this purpose, for example, the slot-width could be varied and adapted to suit the respective level. Preferably, the slot width is selected such that about 100 ml of fluid passes into the second trough via the channel over a period of 30 seconds.
The cleaning system according to the invention comprises a cleaning apparatus as
described above and a cleaning appliance, comprising a main body which is
provided with a rotatable brush roller. The cleaning appliance also preferably
comprises a handle, which is connected in an articulated manner to the main body,
an electric motor which sets the brush roller in rotation, as well as a battery which
.0 provides electrical energy for the electric motor.
Preferably, the main body is further provided with a suction device with a suction
opening. The suction opening is preferably designed as a suction slot and is
arranged adjacent to the brush roller on the underside of the main body facing the
floor to be cleaned. The suction device is designed to pick up dirt loosened by the
.5 brush roller and to convey it into a dirt collecting container arranged in the main
body.
The underside of the main body of the cleaning appliance and the bottom of the
depression of the cleaning apparatus are designed to be substantially congruent to
each other, so that the main body of the cleaning appliance can be at least partially
inserted into the depression.
For cleaning of the brush roller, cleaning fluid is introduced into the water reservoir.
The fluid flows via the slot and the channel into the second trough. There, the
cleaning fluid comes into contact with the rotating brush roller, whereby the brush roller furthermore comes into contact with the protuberances arranged in the second trough, as a result of which the dirt particles become loosened and arrive in the cleaning fluid. Due to the rotation of the brush roller, the contaminated cleaning fluid is conveyed in the direction of the suction opening of the cleaning appliance and there received by the suction device and conveyed into the dirt collecting container located in the cleaning appliance.
According to one aspect, there is provided a cleaning apparatus for cleaning a
rotatable brush roller of a cleaning appliance, comprising a container having a
depression for accommodating the main body of the cleaning appliance, said main
.0 body being provided with the brush roller, and also comprising a water reservoir,
wherein the water reservoir is flow-connected to the depression, wherein cleaning
fluid introduced into the water reservoir flows automatically into the depression,
wherein the depression is designed such that the water reservoir is assigned to that
edge of the cleaning appliance which is spaced apart from the brush roller, wherein
.5 the brush roller comes to lie at least partially against the base of the depression
wherein the depression has a first trough for accommodating the main body of the
cleaning appliance and a second trough for accommodating the brush roller, wherein
the first trough is arranged between the water reservoir and second trough, and
wherein at least one channel is formed into the first trough, by means of which
channel the cleaning fluid introduced into the water reservoir automatically passes
into the second trough, wherein at least one slot is inserted into a wall of the water
reservoir, through which slot the cleaning fluid introduced into the water reservoir
passes into the at least one channel.
An embodiment of the apparatus according to the invention and an embodiment of
the cleaning system according to the invention is explained in more detail below with
reference to the Figures. These show, in each case schematically:
FIG. 1 a cleaning apparatus in plan view, side view and front view;
FIG. 2 a three-dimensional view of the cleaning apparatus according to FIG. 1;
FIG. 3 a sectional view of the cleaning apparatus according to FIG. 1;
FIG. 4 a sectional view of a cleaning appliance;
FIG. 5 a three-dimensional view of a cleaning system;
FIG. 6 a front view of the cleaning system of FIG. 5;
.o FIG. 7 a sectional view of the cleaning system according to FIG. 5.
FIGS. 1 to 3 show a cleaning apparatus 1 for cleaning a rotatable brush roller 13 of a
cleaning appliance 11. The cleaning apparatus 1 comprises a container 2 with a
depression 3 which is suitable for accommodating the main body 12 of the cleaning
appliance 11, this main body being equipped with the brush roller 13.
.5 The container 2 further comprises a water reservoir 4, which water reservoir 4 is
flow-connected with the depression 3.
The container 2 is made of injection-moulded plastic and has a circumferential edge
18, which delimits the depression 3 and the water reservoir 4. At the same time, the
edge 18 serves as a positioning element, so that the cleaning apparatus 1 can be
placed on a floor. In this instance, the water reservoir 4 is arranged in the cleaning
apparatus 1 in such a way that - as viewed from the floor on which the cleaning
apparatus 1 is placed - same water reservoir 4 is arranged at a higher level than the
depression 3. Thus, cleaning fluid introduced into the water reservoir 4, under the
action of gravity, automatically flows into the depression 3.
Depression 3 has a first trough 5 for accommodating the main body 12 of the
cleaning appliance 11 and a second trough 6 for accommodating the brush roller 13.
Therefore, as seen in the plan view, the first trough 5 is arranged between the water
reservoir 4 and the second trough 6. The brush roller 13 comes to lie at least partially
against the base 17 of trough 6.
Within the first mould 5, three channels 7 are formed through which the cleaning fluid
introduced into the water reservoir 4 automatically reaches the second trough 6.
Three slots 10 are inserted into a wall 9 of the water reservoir 4, which are in
connection with the channels 7 and through which the cleaning fluid introduced into
.o the water reservoir 4 passes into channels 7.
In the cleaning apparatus 1 according to the invention, the water reservoir 4 and the
second trough 6 are arranged opposite each other and are each assigned to the
circumferential edge 18. The first trough 5 is located between the water reservoir 4
and the second trough 6.
.5 The second trough 6 is designed in the form of a cylindrical recess, wherein the
second trough 6 is provided with protuberances 8 in the form of knobs. These
protuberances 8 in the form of knobs are arranged in the second trough 6 in one line
and thus in a comb-like configuration. Overall, three rows of protuberances 8
arranged in a comb-like manner are proposed for the second trough 6.
In the region of the second trough 6, an emergency drainage 19 is inserted into the
edge 18 of the cleaning apparatus 1. The emergency drainage 19 comprises a third
trough which is separated from the second trough 6 by a partition wall. It is proposed to insert a slit-shaped opening into this partition wall within its lower region. Through this opening, the emergency drainage is flow-connected with the second trough 6.
In the event the cleaning fluid that flowed into the second trough 6 cannot be
accommodated by the cleaning appliance 11, the cleaning fluid runs off via the
opening into the emergency drainage 19. Openings in the form of two slit-shaped
outlets located opposite each other are made into the edge 18 in the region of the
third trough. The cleaning fluid flows off via these openings when the volume of the
third trough is exhausted.
The emergency drainage 19 facilitates draining off cleaning fluid when the cleaning
.0 fluid is not removed as intended, for example is not taken up by the suction opening
15 of the cleaning appliance 11. Thus, it can be prevented that the cleaning fluid
comes into contact with mechanical or electrical components of the cleaning
appliance 11, which are not equipped for contact with cleaning fluid.
The first trough 5 has recesses 20 on the side facing the water reservoir 4, which
.5 recesses serve to receive and accommodate wheels 21 of the cleaning appliance
11.
FIG. 4 shows a cleaning appliance 11. The cleaning appliance 11 has a main body
12 which is provided with a rotatable brush roller 13. The cleaning appliance 11 is
further provided with a suction device 14, wherein the suction device 14 has a
suction opening 15 in the form of a suction slot. The suction opening 15 and the
brush roller 13 are assigned to the underbody 16 of the main body 12 facing the
depression 3. The suction opening 15 and the brush roller 13 are adjacently
arranged, wherein the suction opening 15 is assigned to the front edge of the main body 12, followed by the brush roller 13. The suction device 14 takes up fluid and conveys it into a reservoir for accommodating dirty fluid. The suction device 14 is fastened in a housing detachable from the cleaning appliance 11.
The cleaning appliance 11 is further equipped with an element 23 for applying
cleaning fluid to the floor to be cleaned. The element 23 is likewise assigned to the
underbody 16 of the main body 12.
The cleaning appliance 11 is equipped with electric motors for driving the brush roller
13 and suction device 14, wherein the provision of the electrical energy is via a
battery arranged in the cleaning appliance 11.
.0 The cleaning appliance 11 has a pole with a handle and an actuating switch for the
electric motors of the suction device 14 and the brush roller 13, the handle being
arranged in an articulated manner on the main body 12.
The brush roller 13 and the suction opening 15 are arranged in the underbody 16 in
such a way that the brush roller 13 comes to lie at least partially in the second trough
.5 6 and the suction opening 15 is located between the first trough 6 and the edge 18.
Figures 5 to 7 show a cleaning system 22 comprising a cleaning apparatus 1
according to Figures 1 to 3. Furthermore, the cleaning system 22 shown here
comprises a cleaning appliance 11 according to FIG. 4.
To clean the brush roller 13, cleaning fluid is introduced into the water reservoir 4.
The cleaning fluid passes via the slots 10 and the channels 7, automatically enters
the second trough 6 under gravity, and there comes into contact with the rotating
brush roller 13. Thereby, the brush roller 13 is rinsed and simultaneously comes into
contact with the protuberances 8, which are arranged in the second trough 6. The cleaning fluid, together with the dirt rinsed off from the brush roller 13, is conveyed in the direction of the suction opening 15 and taken up by the suction opening 15 and conveyed into the dirt collecting chamber arranged in the cleaning appliance 11.
A cleaning strip 25 of textile material is assigned to the suction opening 15. The
cleaning strip 25 is assigned to the housing unit containing the suction device 14 and
can therefore be removed together with the housing unit from the main body 12. As a
result, the cleaning strip 25 can be cleaned separately from the main body 12. The
cleaning strip 25 serves to seal the gap between main body 12 and the brush roller
13 on the side facing away from the suction opening 15. At the same time, the
.0 cleaning strip 25 allows to homogenise the wiping result in the forward movement of
the cleaning device 11.
Throughout this specification and the claims which follow, unless the context
requires otherwise, the word "comprise", and variations such as "comprises" or
"comprising", will be understood to imply the inclusion of a stated integer or step or
.5 group of integers or steps but not the exclusion of any other integer or step or group
of integers or steps.
The reference in this specification to any prior publication (or information derived
from it), or to any matter which is known, is not, and should not be taken as, an
acknowledgement or admission or any form of suggestion that that prior publication
(or information derived from it) or known matter forms part of the common general
knowledge in the field of endeavour to which this specification relates.

Claims (6)

The claims defining the invention are as follows:
1. A cleaning apparatus for cleaning a rotatable brush roller of a cleaning
appliance, comprising a container having a depression for accommodating the
main body of the cleaning appliance, said main body being provided with the
brush roller, and also comprising a water reservoir, wherein the water reservoir
is flow-connected to the depression, wherein cleaning fluid introduced into the
water reservoir flows automatically into the depression, wherein the depression
is designed such that the water reservoir is assigned to that edge of the cleaning
appliance which is spaced apart from the brush roller, wherein the brush roller
.0 comes to lie at least partially against the base of the depression wherein the
depression has a first trough for accommodating the main body of the cleaning
appliance and a second trough for accommodating the brush roller, wherein the
first trough is arranged between the water reservoir and second trough, and
wherein at least one channel is formed into the first trough, by means of which
.5 channel the cleaning fluid introduced into the water reservoir automatically
passes into the second trough, wherein at least one slot is inserted into a wall
of the water reservoir, through which slot the cleaning fluid introduced into the
water reservoir passes into the at least one channel.
2. The cleaning apparatus according to claim 1, wherein the second trough is
provided with protuberances.
3. The cleaning apparatus according to claim 2, wherein the protuberances are of
comb-like design.
4. A cleaning system, comprising a cleaning apparatus according to any one of
the preceding claims and a cleaning appliance, comprising a main body, which
is provided with a rotatable brush roller.
5. The cleaning system according to claim 4, wherein the main body is provided
with a suction device having a suction opening, wherein the suction opening
and the brush roller are assigned to an underbody of the main body facing the
depression.
6. The cleaning system according to claim 5, wherein the brush roller and the
suction opening are arranged in the underbody in such a manner that the brush
roller comes to rest at least partially in the second trough and the suction
opening is arranged between the first trough and an edge.
.0
AU2020273511A 2019-05-15 2020-05-12 Cleaning apparatus for cleaning a rotatable brush roller of a cleaning appliance, and cleaning system Active AU2020273511B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019112779.3A DE102019112779B3 (en) 2019-05-15 2019-05-15 Cleaning device for cleaning a rotatable roller brush of a cleaning device and cleaning system
DE102019112779.3 2019-05-15
PCT/EP2020/063119 WO2020229442A1 (en) 2019-05-15 2020-05-12 Cleaning apparatus for cleaning a rotatable brush roller of a cleaning appliance, and cleaning system

Publications (2)

Publication Number Publication Date
AU2020273511A1 AU2020273511A1 (en) 2022-01-20
AU2020273511B2 true AU2020273511B2 (en) 2023-06-29

Family

ID=70847327

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2020273511A Active AU2020273511B2 (en) 2019-05-15 2020-05-12 Cleaning apparatus for cleaning a rotatable brush roller of a cleaning appliance, and cleaning system

Country Status (7)

Country Link
US (1) US20220248920A1 (en)
EP (1) EP3968831A1 (en)
CN (1) CN113597273B (en)
AU (1) AU2020273511B2 (en)
CA (1) CA3157412C (en)
DE (1) DE102019112779B3 (en)
WO (1) WO2020229442A1 (en)

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CN214414755U (en) * 2020-11-30 2021-10-19 邦辰环保科技(苏州)有限公司 Cleaning device for dust collector
CN113180553B (en) * 2021-04-21 2022-04-05 尚科宁家(中国)科技有限公司 Cleaning method of surface cleaning device
CN113598662A (en) * 2021-07-20 2021-11-05 尚科宁家(中国)科技有限公司 Surface cleaning machine of self-cleaning
CN113576320A (en) * 2021-08-10 2021-11-02 苏州日新电器科技有限公司 Dust catcher charging base and dust catcher subassembly
CN115005151B (en) * 2022-05-26 2023-08-04 国信中船(青岛)海洋科技有限公司 Progressive removing device and method for marine attachments of culture cabin of culture engineering ship

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Also Published As

Publication number Publication date
DE102019112779B3 (en) 2020-10-15
AU2020273511A1 (en) 2022-01-20
CA3157412C (en) 2024-01-16
CN113597273A (en) 2021-11-02
WO2020229442A1 (en) 2020-11-19
CA3157412A1 (en) 2020-11-19
EP3968831A1 (en) 2022-03-23
CN113597273B (en) 2022-09-02
US20220248920A1 (en) 2022-08-11

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