EP3003112A1 - Device for a ringformed scraper intended for a floor treatment machine - Google Patents

Device for a ringformed scraper intended for a floor treatment machine

Info

Publication number
EP3003112A1
EP3003112A1 EP14804867.1A EP14804867A EP3003112A1 EP 3003112 A1 EP3003112 A1 EP 3003112A1 EP 14804867 A EP14804867 A EP 14804867A EP 3003112 A1 EP3003112 A1 EP 3003112A1
Authority
EP
European Patent Office
Prior art keywords
attachment
scraper blade
scraper
attachment part
blade member
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.)
Withdrawn
Application number
EP14804867.1A
Other languages
German (de)
French (fr)
Other versions
EP3003112A4 (en
Inventor
Johan Granholm
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.)
QLEENO AB
Original Assignee
QLEENO AB
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 QLEENO AB filed Critical QLEENO AB
Publication of EP3003112A1 publication Critical patent/EP3003112A1/en
Publication of EP3003112A4 publication Critical patent/EP3003112A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/4036—Parts or details of the surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/292—Floor-scrubbing machines characterised by means for taking-up dirty liquid having rotary tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • A47L11/302—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools
    • A47L11/305—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools the tools being disc brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4038—Disk shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4044—Vacuuming or pick-up tools; Squeegees
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts 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
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools

Definitions

  • the present invention concerns a device for a ringformed liquid scraper for a floor treatment machine provided with a motor driven rotatable floor treatment tool, the scraper ring comprising a plurality of flexible scraper blade members, which are tilted in relation to the circumference and intended rotational direction of the scraper ring and which are held in place in the scraper ring by a mechanism therefor.
  • wet scrubbing machines and other floor treatment machines which operate using water, scrubbing liquid and/or another floor treatment liquid and which comprise a scraper ring, which is attached to be arranged around a rotatably driven brush, pad, grinding pad, abrasive disc, disc with sandpaper, or another suitable floor treatment tool
  • the main object of the present invention is primarily to solve, by simple but efficiently working means, among other the above mentioned problems in a technically working way.
  • quick-attachment mechanisms intended for individual scraper blade members comprise a manual actuation part, which is formed of a lever, which is connected with the movable resilient attachment means of said attachment part, as well as an attachment part cooperatable with said scraper blade member, said attachment part being actuatable to move between a holding position and a releasing position, respectively, of a said scraper blade member.
  • FIG. 1 and 2 schematically show in cross- section a scraper blade member in an attachment-ready position and in an attached position, respectively,
  • Fig. 2A shows different views of parts included in a quick-attachment mechanism in assembled and loose, respectively, position
  • Fig. 3 shows an exploded view of a portion of a scraper ring obliquely from above
  • Fig. 4 shows the front part of a wet scrubbing machine with the proper scrubbing and suction part of the machine as seen obliquely from above
  • Fig. 5 shows from below a scraper ring with scraper blade members attached thereto
  • Fig. 6 shows the scraper ring shown in Fig. 5 as seen obliquely from above
  • Fig. 7 shows a view obliquely from below of a wet scrubbing machine and its scrubbing-brush with surrounding scraper ring and scraper blade members attached thereto.
  • This scraper ring should be a complement to the scraper ring used with the today's machine.
  • the scraper ring used for the today's machine has relatively hard scrapers and which are not easy to replace.
  • the present invention having detachable scrapers gives the user possibility of replacing scraper depending on floor type.
  • the user threads up a scrape, made of rubber or another soft material, through a slot on the underside of the scraper ring and pushes in a snap lock hand-lever, which is mounted on a spring, to be able to bring up the scraper all the way up to the upper part of an attachment ring.
  • the user then releases the hand-lever, which makes the spring to return to its original position and lock the scrape .
  • a said scraper ring is mounted around a brush of a cleaning machine and has two functions, on one hand to scrape up scrubbing water and in addition assist in sucking up scrubbing water.
  • the scraper ring is fixedly mounted in three leaf springs and rotates together with the brush.
  • the scrapers ensure that the scrubbing water does not come outside the scraper ring.
  • Vacuum tubing which also is placed in the scraper ring, sucks up the scrubbing water that the scrapers scrape together from the underlayer.
  • Said actuation part 8 is formed of a lever, which is connected with the movable resilient attachment means 10 of said attachment part 9.
  • the lever has such a length that it is actuatable by means of finger power and is stiffer than the attachment part 9.
  • the lever consists of metal or plastic material and is riveted, screwed, glued, or welded to the attachment part 9.
  • the attachment part 9 may have attachment means 10, which are arranged to, at least with a part thereof, penetrate into or deform the material 11 that the scraper blade members 6 consist of.
  • the attachment part may have attachment means, which are arranged to, by clamping action against part of the attachment portion of the scraper blade member, clamp the scraper blade member in question onto the scraper ring, or that attachment means, which are allowed to penetrate into prefabricated recesses in the scraper blade members, are utilized .
  • the scraper blade members 6, which consist of rubber and/or plastic material, or other more or less soft materials, preferably polymer materials, are
  • the attachment part 9 may be formed of a resiliently pivotably mounted plastic or metal piece provided with teeth 10, and the teeth 10, which are punched out of one end of the attachment part, are
  • the attachment part being formed of spring steel.
  • the attachment part may have attachment means, which are arranged to be received in prefabricated recesses in said scraper blade members, for instance such as in a ring binder or the like. This is not shown in the drawings. Neither are other solutions within the scope of the claims shown or described further.
  • said quick-attachment mechanisms 7 are connected with an upper part 15 of the frame of the scraper ring.
  • the attachment part 9 connected therewith will be turned outward in the direction 2 of the arrow 22.
  • the intended, for instance worn, scraper blade member 6 can be pulled out of the intended recess 12 in the scraper ring 2 and a new scraper blade member 6 be inserted therein.
  • the teeth 10 of the attachment part 9 will penetrate into the material 11 of the insertable part 14 of the scraper blade member, as is shown in Fig. 2, and efficiently hold said scraper blade member 6 in place in the scraper ring 2.
  • the removal of the scraper blade member 6 is carried out in the same way but in the opposite direction.

Landscapes

  • Cleaning In General (AREA)

Abstract

The present invention concerns a device (1) for a scrubbing liquid scraper ring (2) for a wet scrubbing machine, etc. provided with motor driven rotatable brush, the scraper ring (2) comprising a plurality of flexible scraper blade members (6), which are tilted in relation to the circumference and intended rotational direction of the scraper ring and which are held in place in the scraper ring by a mechanism (7) therefor. According to the invention, quick-attachment mechanisms (7) intended for individual scraper blade members (6) comprise a manual actuation part (8) as well as an attachment part (9) cooperatable with said scraper blade member, said attachment part (9) being actuatable to move between a holding position and a releasing position (II), respectively, of a said scraper blade member (6).

Description

Device for a ringformed scraper intended for a floor treatment machine
The present invention concerns a device for a ringformed liquid scraper for a floor treatment machine provided with a motor driven rotatable floor treatment tool, the scraper ring comprising a plurality of flexible scraper blade members, which are tilted in relation to the circumference and intended rotational direction of the scraper ring and which are held in place in the scraper ring by a mechanism therefor.
In, e.g., wet scrubbing machines and other floor treatment machines, which operate using water, scrubbing liquid and/or another floor treatment liquid and which comprise a scraper ring, which is attached to be arranged around a rotatably driven brush, pad, grinding pad, abrasive disc, disc with sandpaper, or another suitable floor treatment tool, there are problems of being able to efficiently attach the separate numerous scraper blade members that are arranged to be held in place in the scraper ring by an intended mechanism therefor, and the function of which essentially is to scrape the underlayer clean from the scrubbing liquid, etc., for sucking it up by means of a suction device coupled to, or which is included in, said, for instance, wet scrubbing machine. When the wet scrubbing machine is run on underlayers causing the scraper blade members to be severely worn or causing the material of the same for some reason not to be so efficient for the underlayer in question on the floor, there is a need for easily being able to change the scraper blade members to new ones or to be replaced by other kinds of blades. US 5,706,549 A and EP 0 880 934 Al show the presence of scraper blades (128 and 2, respectively), which are attached in holders by means of: shafts (140, 142, 158, 160), which are provided with flexible heads (144) and which can spring to be inserted into holes (98, 99, 120) in a said holder (88), and by means of clipping elements (6) of a holder (3) and which are inserted into an opening (4) of the scraper blade (2) and which are supported by a manually operated scrape provided with a handle, respectively. However, there is not arranged any intended lever connected with the movable resilient attachment means of a fixed part for thereby facilitating replacement of scraper blade.
The main object of the present invention is primarily to solve, by simple but efficiently working means, among other the above mentioned problems in a technically working way.
Said object is achieved by means of a device according to the present invention, which
essentially is characterized in that quick-attachment mechanisms intended for individual scraper blade members comprise a manual actuation part, which is formed of a lever, which is connected with the movable resilient attachment means of said attachment part, as well as an attachment part cooperatable with said scraper blade member, said attachment part being actuatable to move between a holding position and a releasing position, respectively, of a said scraper blade member.
The present invention is described below as a preferred embodiment example, reference being made to the accompanying drawings, in which, Figs. 1 and 2 schematically show in cross- section a scraper blade member in an attachment-ready position and in an attached position, respectively,
Fig. 2A shows different views of parts included in a quick-attachment mechanism in assembled and loose, respectively, position,
Fig. 3 shows an exploded view of a portion of a scraper ring obliquely from above,
Fig. 4 shows the front part of a wet scrubbing machine with the proper scrubbing and suction part of the machine as seen obliquely from above,
Fig. 5 shows from below a scraper ring with scraper blade members attached thereto,
Fig. 6 shows the scraper ring shown in Fig. 5 as seen obliquely from above, and
Fig. 7 shows a view obliquely from below of a wet scrubbing machine and its scrubbing-brush with surrounding scraper ring and scraper blade members attached thereto.
The Invention Described in Brief:
This scraper ring should be a complement to the scraper ring used with the today's machine. The scraper ring used for the today's machine has relatively hard scrapers and which are not easy to replace. The present invention having detachable scrapers gives the user possibility of replacing scraper depending on floor type. The user threads up a scrape, made of rubber or another soft material, through a slot on the underside of the scraper ring and pushes in a snap lock hand-lever, which is mounted on a spring, to be able to bring up the scraper all the way up to the upper part of an attachment ring. The user then releases the hand-lever, which makes the spring to return to its original position and lock the scrape .
A said scraper ring is mounted around a brush of a cleaning machine and has two functions, on one hand to scrape up scrubbing water and in addition assist in sucking up scrubbing water.
The scraper ring is fixedly mounted in three leaf springs and rotates together with the brush. The scrapers ensure that the scrubbing water does not come outside the scraper ring. Vacuum tubing, which also is placed in the scraper ring, sucks up the scrubbing water that the scrapers scrape together from the underlayer.
Detailed Description of the Invention
A device 1 for a ringformed liquid scraper
2 for a wet scrubbing machine 3, or another similar cleaning machine, which is provided with a motor driven rotatable brush 4, or another floor treatment tool, as well as suction devices 23, comprises a plurality of flexible scraper blade members 6, which are tilted in relation to the circumference and intended rotational direction 5 of the scraper ring and which are arranged to be held in place in the scraper ring 2 by a mechanism 7 intended therefor. According to the invention, there are comprised quick-attachment mechanisms 7 intended for individual scraper blade members 6, and which comprise a manual actuation part 8 as well as an attachment part 9, which is arranged for disengagable interconnection with said scraper blade member 6. In that connection, said attachment part 9 is actuatable to move between a holding position I of a said scraper blade member 6 and a
releasing position II, respectively, of a said scraper blade member 6. Said actuation part 8 is formed of a lever, which is connected with the movable resilient attachment means 10 of said attachment part 9. The lever has such a length that it is actuatable by means of finger power and is stiffer than the attachment part 9. Suitably, the lever consists of metal or plastic material and is riveted, screwed, glued, or welded to the attachment part 9.
The attachment part 9 may have attachment means 10, which are arranged to, at least with a part thereof, penetrate into or deform the material 11 that the scraper blade members 6 consist of. Alternatively, the attachment part may have attachment means, which are arranged to, by clamping action against part of the attachment portion of the scraper blade member, clamp the scraper blade member in question onto the scraper ring, or that attachment means, which are allowed to penetrate into prefabricated recesses in the scraper blade members, are utilized .
The scraper blade members 6, which consist of rubber and/or plastic material, or other more or less soft materials, preferably polymer materials, are
insertable into slot-shaped recesses 12 in the frame 13 of the scraper ring with a part 14, said attachment part 9 of the quick-attachment mechanism 7 being cooperatable with said insertable part 14 of the respective scraper blade member 6.
The attachment part 9 may be formed of a resiliently pivotably mounted plastic or metal piece provided with teeth 10, and the teeth 10, which are punched out of one end of the attachment part, are
distributed along the width of the entire attachment part, the attachment part being formed of spring steel. Alternatively, the attachment part may have attachment means, which are arranged to be received in prefabricated recesses in said scraper blade members, for instance such as in a ring binder or the like. This is not shown in the drawings. Neither are other solutions within the scope of the claims shown or described further.
By a part 16, said quick-attachment mechanisms 7 are connected with an upper part 15 of the frame of the scraper ring.
The design of the invention should clearly have been understood by the above-mentioned and by means of the drawings. The function is also seen thereby but it should be briefly described that the user of the wet scrubbing machine 3 or another floor treatment machine pushes by a finger on the actuation part 8 at its outer end, wherein the force F that then acts on the actuation part 8 makes the same to be turned in the direction 17 around a formed pivot joint 18 between the attachment part 9 and an anchorage part 19 of a common resilient part 20, which in the example shown is fixed between an upper part 15 of an intended scraper ring 2 and the proper frame 21 thereof .
At the same time as the actuation part 8 is turned inward 17, the attachment part 9 connected therewith will be turned outward in the direction 2 of the arrow 22. In said position, the intended, for instance worn, scraper blade member 6 can be pulled out of the intended recess 12 in the scraper ring 2 and a new scraper blade member 6 be inserted therein. In the present
example, in doing so, the teeth 10 of the attachment part 9 will penetrate into the material 11 of the insertable part 14 of the scraper blade member, as is shown in Fig. 2, and efficiently hold said scraper blade member 6 in place in the scraper ring 2. The removal of the scraper blade member 6 is carried out in the same way but in the opposite direction.
Alternatively, pure clamping action of the material of the scraper blade members from each side thereof, as has been indicated above, may be utilized, or that attachment means mating to prefabricated recesses in the scraper blade members are allowed to be received therein .
The nature and the function of the device should have been clear from what is described above and shown in the drawings .
The invention is naturally not limited to the embodiments described above and the embodiment shown in the accompanying drawings. Modifications are feasible, particularly as for the nature of the different parts, or by using an equivalent technique, without departing from the protection area of the invention, such as it is defined in the claims.

Claims

CLAIMS 1. Device (1) for a ringformed liquid scraper
(2) for a floor treatment machine (3) provided with a motor driven rotatable floor treatment tool (4), the scraper ring (2) comprising a plurality of flexible scraper blade members (6), which are tilted in relation to the circumference and intended rotational direction (5) of the scraper ring and which are held in place in the scraper ring by a mechanism (7) therefor, characterized in that quick-attachment mechanisms (7) intended for
individual scraper blade members (6) comprise a manual actuation part (8), which is formed of a lever, which is connected with the movable resilient attachment means (10) of said attachment part (9), as well as an attachment part (9) cooperatable with said scraper blade member, said attachment part (9) being actuatable to move between a holding position (I) and a releasing position (II), respectively, of a said scraper blade member (6).
2. Device according to claim 1, characterized in that the attachment part (9) has attachment means (10), which are arranged to, at least with a part thereof, penetrate into or deform the material (11) that the scraper blade members (6) consist of.
3. Device according to claim 2, characterized in that the attachment part (9) is formed of a resiliently pivotably mounted plastic or metal piece provided with teeth (10) .
4. Device according to claim 3, characterized in that the teeth (10), which are punched out of one end of the attachment part, are distributed along the width of the entire attachment part, the attachment part being formed of spring steel.
5. Device according to claim 1, characterized in that the attachment part has attachment means, which are arranged to be received in prefabricated recesses in said scraper blade members.
6. Device according to claim 1, characterized in that the attachment part has attachment means, which are arranged to, by clamping action against part of the attachment portion of the scraper blade member, clamp the scraper blade member in question.
7. Device according to claim 1, characterized in that the lever has such a length that it is actuatable by means of finger power and is stiffer than the
attachment part (9) .
8. Device according to claim 7, characterized in that the lever consists of metal or plastic material and is riveted, screwed, glued, or welded to the
attachment part (9) .
9. Device according to any one of the above claims, characterized in that the scraper blade members (6) , which consist of rubber and/or plastic material or another polymeric material, are insertable into slot- shaped recesses (12) in the frame (13) of the scraper ring with a part (14), said attachment part (9) of the quick- attachment mechanism (7) being cooperatable with said insertable part (14) of the respective scraper blade member (6), and that said quick-attachment mechanisms are connected with the frame of the scraper ring.
EP14804867.1A 2013-05-30 2014-05-14 Device for a ringformed scraper intended for a floor treatment machine Withdrawn EP3003112A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1350660A SE537349C2 (en) 2013-05-30 2013-05-30 Device for scraper ring for floor treatment machine
PCT/SE2014/050583 WO2014193290A1 (en) 2013-05-30 2014-05-14 Device for a ringformed scraper intended for a floor treatment machine

Publications (2)

Publication Number Publication Date
EP3003112A1 true EP3003112A1 (en) 2016-04-13
EP3003112A4 EP3003112A4 (en) 2017-03-29

Family

ID=51989186

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14804867.1A Withdrawn EP3003112A4 (en) 2013-05-30 2014-05-14 Device for a ringformed scraper intended for a floor treatment machine

Country Status (6)

Country Link
US (1) US20160113468A1 (en)
EP (1) EP3003112A4 (en)
CA (1) CA2911263A1 (en)
SE (1) SE537349C2 (en)
TW (1) TW201505596A (en)
WO (1) WO2014193290A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5706549A (en) * 1996-06-25 1998-01-13 Advance Machine Company Rotary disc floor cleaning apparatus
WO2007129973A1 (en) * 2006-05-05 2007-11-15 Superclean Scandinavia Aktiebolag Water suction device in a combined wet scrubbing machine having a rotatable disk-shaped brush
WO2011102786A1 (en) * 2010-02-17 2011-08-25 Qleeno Ab Circular liquid wiper device for a floor cleaning machine
GB2489056A (en) * 2011-03-14 2012-09-19 Roy Studebaker A rotary surface cleaning machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363152A (en) * 1981-02-19 1982-12-14 The Scott & Fetzer Company Squeegee assembly for a scrubbing machine
SE470302B (en) * 1991-03-21 1994-01-17 Tanasescu Ovidiu Water suction device for scrubbing machines
EP0880934B1 (en) * 1997-05-27 2002-03-20 Unilever N.V. Suction head for floor cleaning machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5706549A (en) * 1996-06-25 1998-01-13 Advance Machine Company Rotary disc floor cleaning apparatus
WO2007129973A1 (en) * 2006-05-05 2007-11-15 Superclean Scandinavia Aktiebolag Water suction device in a combined wet scrubbing machine having a rotatable disk-shaped brush
WO2011102786A1 (en) * 2010-02-17 2011-08-25 Qleeno Ab Circular liquid wiper device for a floor cleaning machine
GB2489056A (en) * 2011-03-14 2012-09-19 Roy Studebaker A rotary surface cleaning machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2014193290A1 *

Also Published As

Publication number Publication date
EP3003112A4 (en) 2017-03-29
TW201505596A (en) 2015-02-16
SE1350660A1 (en) 2014-12-01
CA2911263A1 (en) 2014-12-04
SE537349C2 (en) 2015-04-14
US20160113468A1 (en) 2016-04-28
WO2014193290A1 (en) 2014-12-04

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