EP2734672A1 - Spliced endless clothing - Google Patents
Spliced endless clothingInfo
- Publication number
- EP2734672A1 EP2734672A1 EP12761888.2A EP12761888A EP2734672A1 EP 2734672 A1 EP2734672 A1 EP 2734672A1 EP 12761888 A EP12761888 A EP 12761888A EP 2734672 A1 EP2734672 A1 EP 2734672A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fabric
- film
- joint
- webs
- endless belts
- 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.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/0027—Screen-cloths
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/0027—Screen-cloths
- D21F1/0036—Multi-layer screen-cloths
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/0027—Screen-cloths
- D21F1/0054—Seams thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/10—Seams thereof
Definitions
- the present invention relates to fabrics for paper machines and more particularly relates to non-woven fabrics and their manufacture.
- Paper machines are used to produce nonwoven webs such as papers of various types, cartons, cardboard and similar nonwovens.
- the term "paper” is used herein to represent these types of nonwoven fibrous webs.
- the production of a nonwoven web begins in the Formierpartie a paper machine with the application of a pulp suspension on a fabric or with the introduction of a pulp suspension in the gap formed between two fabrics.
- Coverings are usually carried out in the form of endless belts, which are deflected via rollers and in each case circulate within a specific section or section of the paper machine.
- the paper-side surface of the fabric carries the pulp suspension or the resultant by dewatering pulp or nonwoven web.
- the guided over the rollers surface of the fabric is hereinafter referred to as the running side, which provided for the transport of the pulp suspension or web paper-side surface as a useful side.
- the coverings have passages through which water can be sucked from the paper-side surface to the running side.
- the fabrics currently used as forming fabrics in the forming section of paper machines consist of woven material. Woven fabrics have regular structures with a repeating basic pattern.
- the forming fabrics are usually constructed of several layers of different thread thickness and yarn guide. Due to their different weave structure, the individual layers of such coverings not only have mutually differing permeabilities for water, but also lead, since openings or passages formed in the paper-side layers
- CONFIRMATION COPY regularly covered by yarns underlying web layers, also to laterally varying permeabilities of the forming fabric and thus to a locally varying dewatering rate of the fibrous web.
- the result is visible markings of the paper web with a regular pattern following the weave pattern.
- lateral permeability fluctuations can impair the quality of the paper web to be produced.
- Woven fabrics also have a low flexural rigidity and therefore often tend to wrinkle during circulation in paper machines.
- the use of monofilaments of different materials such.
- PET polyethylene terephthalate
- PA polyamide
- strings can not be woven as an endless belt, the two ends of a finite length of woven tape must be joined together to form an endless belt.
- the connection is made via a complicated woven seam structure, in which the ends of mutually associated ends of warp and weft yarns at the connection point of the webbing are offset from each other according to a certain pattern. This connection technique is very complex and is reflected in correspondingly high production costs for woven endless coverings.
- the patents CA 1 230 511 and US Pat. No. 4,541,895 disclose a covering which is formed by a laminate of a plurality of layers of non-woven water-impermeable materials. For dewatering, openings are made in the laminate. The connection of the individual layers of the laminate is made flat by z. As ultrasonic welding, high frequency welding, thermal welding, bonding or chemical pretreatment of the layers. The drainage holes are made in the laminate, preferably by laser drilling brought in.
- the splice seam of one layer can be arranged offset to those of other layers, wherein the splice seams can also be arranged at an angle to the direction of the endless belt, in order to avoid noticeable thickening of the fabric.
- producing such film laminates in the dimensions required for forming fabrics is associated with great expense.
- such multilayer film laminates are relatively stiff and tend to delaminate under the conditions prevailing in the forming section of a paper machine.
- polymer tapes are used to produce coverings for paper machines, they must be stretched in the running direction of the fabric. Otherwise, the clothing is irreversibly stretched under the tensile stresses prevailing during operation and thus unusable after a short time.
- unidirectionally stretched polymer tapes are not available in the widths customary for fabrics used on industrial scale paper machines. For the production of a covering, therefore, several polymer tapes have to be laterally connected to each other.
- the ends of the band must be joined together. At the joints or joints, the material is not stretched, whereby the fabric has a correspondingly lower mechanical stability at these points.
- a covering for use in paper machines is proposed, which is produced from a helically wound polymer tape.
- the width of the polymer strip is substantially less than the width of the fabric produced therefrom, the longitudinal direction of the polymer strip, with the exception of the inclined position given by the winding height, coinciding with the running direction of the fabric.
- the mutually opposite side edges of adjacent Windungs réelle of the polymer tape are welded together to form a closed tread. Since the weld is arranged at a relatively small angle to the running direction of the fabric, the portions of the tensile stress acting transversely to the weld seam are small, so that the non-stretched material of the weld is ideally not overburdened.
- the polymer tape that is laid in a delicacious manner is very complicated because it requires a special welding apparatus, in which either the welding apparatus must be guided around the clothing several times along the welding line with high precision, or the clothing must be displaced with the peripheral welding line relative to the welding apparatus.
- the edges of the fabric must be trimmed after the welding process to obtain a uniform width stringing.
- the weld meets at an acute angle to one of the side edges of the fabric, which is due to the opposite to the polymer tape structurally weaker weld a point of attack for tearing of the fabric is given.
- a covering for paper machines which is designed in the form of a film, has a high mechanical stability and tensile strength, is sufficiently wide for use in industrially used paper machines, and can be produced by conventional means.
- Embodiments of such fabrics for a paper machine have two or more endless belts which are each formed by a film-shaped web which is endlessly closed in the circumferential direction of the clothing along a joint, the endless belts being connected to one another at the side edges in such a way that the joints of two mutually connected endless belts with respect to the direction of rotation of the fabric offset from each other.
- the joint of a film-like web has deviating properties from the rest of the web material, resulting in lower tensile strength and higher tensile strength. manifested by the increased extensibility of the joint.
- a tensile force acting on the clothing in the region of the joint of one of the endless belts is absorbed by the adjacently arranged unapplied film material of an adjacent endless belt and thus effectively prevents an overloading and stretching of the joint.
- the film-shaped webs are formed from a unidirectionally stretched in the circumferential direction of the fabric polymer, whereby a high dimensional stability of the fabric is achieved in the intended use.
- the film-shaped webs are formed in embodiments of the covering on the basis of a material comprising polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyphenylene sulfide (PPS), polyetheretherketones (PEEK), polyamide ( PA) or polyolefins.
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- PPS polyphenylene sulfide
- PEEK polyetheretherketones
- PA polyamide
- the thickness of the film-shaped webs in embodiments is further preferably selected from the range of 300 to 1600 pm, and more preferably from the range of 500 to 800 pm.
- the film-shaped webs are formed from an unstretched polymer and are provided to provide the tensile strength of the fabric in the direction of travel of the fabric extending filaments, in particular spirally wound threads.
- the film-shaped webs are in embodiments at the joints preferably at least partially cohesively connected to open the joint z. B. to avoid the formation of a gap during use of the fabric.
- a cohesive connection is understood to mean a holding together of the connection partners by atomic or molecular forces.
- the endless belts are integrally bonded together to provide a seamless transition between the adjacent endless belts.
- the active surfaces of a joint, and / or a lateral connection point are arranged in a staircase, so that a part of the connection surface of the tensile forces occurring does not penetrate vertically and so the dimensional stability of the joint is increased.
- the surfaces adjoining one another at the connection point are referred to as surfaces.
- at least one active surface of a joint and / or a lateral connection point is arranged as an inclined surface with respect to the surfaces of the clothing.
- At least one joint extends along a line running obliquely with respect to the direction of rotation, in particular straight lines.
- An oblique course of the joint relative to the direction of rotation should be understood to mean that the joint extends at least in sections, in particular along its entire extension, not parallel to the transverse direction of the clothing.
- the length of the joint can be made larger than the width of the film-shaped web, whereby the tensile force acting on the joint is distributed over a longer distance.
- the durability of the joint can be improved.
- Another advantage in the oblique course of the joint is that in a Nip pengang the fabric not the entire joint goes through the nip at the same time, but in each case only a small bleed. As a result, possibly caused by the joint marks are reduced, as well as the running of the fabric in the machine is quieter.
- the covering comprises a plurality of superimposed and flat interconnected sheet-like webs.
- the joints of film-shaped webs arranged one above another extend obliquely to the direction of rotation and enclose different angles with the direction of rotation.
- FIG. 1 shows a string designed as an endless band in a schematic perspective illustration
- FIG. 2 schematically illustrates the structure of a string designed as an endless band from a plurality of ribbon-shaped sheet-like strips in a perspective view
- FIG. 3 schematically shows film-shaped webs with differently pronounced side edges
- FIG. 4 is a schematic perspective view of a sheet-like sheet joined to an endless belt
- Figure 5 shows two examples of edge forming for producing a shock
- FIG. 6 shows a step-shaped edge formation for producing a profiled joint
- FIG. 7 shows a groove-and-tongue profiling of joining edges
- FIG. 8 shows a first arrangement for transmission laser welding of two adjoining edges in a schematic perspective illustration
- FIG. 9 shows a second arrangement for transmission laser welding of two adjoining edges in a schematic cross-sectional representation
- FIG. 10 shows a foil-like path with a joint extending at an angle to the direction of rotation.
- Figure 1 shows a schematic representation of a fabric 1 for use in papermaking machines.
- the width of the fabric 1 is limited by the side edges 2 and 3.
- the two side edges are self-contained and arranged substantially parallel to each other.
- the fabric 1 is therefore also referred to as endless clothing.
- the direction in which the endless covering 1 is closed in itself is referred to below as the running direction LR or circumferential direction LR of the covering 1 and is illustrated in FIG. 1 by means of a curved double arrow.
- the direction along the shortest connection between the two side edges 2 and 3 is referred to as transverse direction QR and is also indicated graphically in Figure 1 by means of a double arrow.
- the fabric 1 has a useful surface 5, which serves to transport the pulp suspension or web during papermaking, and is also referred to as the paper-side surface 5 of the fabric 1.
- the useful surface 5 of the fabric 1 usually forms the outwardly directed surface of the fabric 1.
- the volume enclosed by the covering 1 volume, inwardly directed surface is referred to in this document as the running side 6. It is usually on the (not shown in the figures) rollers, which cause the circulation of the fabric 1.
- the directions pointing from the running side to the paper-side surface of the clothing 1 are referred to below as the vertical direction of the clothing 1.
- the promotion of pulp suspension or fibrous web on the fabric 1 takes place on the effective surface 5 in the direction indicated by an arrow machine direction MR.
- FIG. 2 illustrates the construction of an endless covering 1 of a plurality of foil-shaped webs as shown in FIG.
- the covering 1 is constructed from three film-shaped webs 10, 20 and 30 arranged side by side in the transverse direction QR.
- the number of film-like webs used or required for the construction of a clothing 1 is determined by the width of the clothing 1, ie its extension in the transverse direction QR, and the width of the film-shaped webs available for its production.
- the number of film webs arranged side by side to produce a clothing 1 in deviation from the embodiment shown in FIG. 2 can only be two, but also more than three be. Furthermore, not all film webs must be the same width.
- 1 different widths of film webs can be joined together to form a fabric, for example, so that the outer film webs 10 and 30 are shortened in the transverse direction QR to obtain a certain predetermined width of the fabric 1. If the tension applied in the intended application of the covering 1 varies along its transverse direction QR, the width of the individual film-shaped webs 10, 20 or 30 can be optimized for the local tensile load, for example by selecting a smaller width of the film-shaped web at higher tensile load becomes.
- the individual film-shaped webs 10, 20 and 30 are constructed monolithically, which is to be understood in this document that the webs apart from a possible surface coating consist of one piece, so in particular are not constructed in multiple layers.
- the film webs 10, 20 and 30 may be perforated depending on the application, d. H. they have vertically penetrating holes, for example for dewatering the fibrous web.
- the Side edges of the film-shaped webs 10, 20 and 30 as shown in Figures 2 and 3a) illustrates formed in a straight line.
- the side edges 13 and 22 to be joined may also run along a two-dimensional line, for example along a serpentine line or a wavy line.
- each of the individual film-shaped webs 10, 20 and 30 is preferably first joined along a joint 11, 21 and 31 to form an endless belt.
- the schematic representation of Figure 4 shows a joined at a joint 11 to an endless belt film-shaped web 10.
- the joint 11 connects the two end edges of the film-shaped Bahn 10.
- Under front edges here are a film-shaped web 10 between the side edges 12 and 13 limiting edges to understand that limit its longitudinal extent and thus form the ends of the web.
- the end edges can be arranged as shown in the figures perpendicular to the course of the side edges. However, they can also be oriented obliquely and have a curved course instead of a straight course.
- the joining of the ends of a film web 10 can be done using different joining techniques such as gluing, calendering and in particular welding.
- an ultrasonic welding process or a transmission laser welding process can be used for welding the two web ends.
- the contacting surfaces of the two web ends are melted and pressed together using an NIR laser (laser with an emission wavelength in the near infrared range). Since the material of the film strips 10, 20, 30 does not absorb the light of an NIR laser, the surfaces to be melted must first be provided with an absorber coating, wherein it is usually sufficient only one of two contact surfaces at the joint with the NIR Laser light absorbing material to coat.
- the absorber coating absorbs, heats up the light of the NIR laser used for welding, and subsequently melts the surface regions of the tail ends adjacent thereto. By pressing together the melted areas, a cohesive connection is finally made.
- lasers for NIR transmission welding are, for example, diode lasers with emission wavelengths in the range of 808 to 980 nm and Nd: YAG laser with an emission wavelength of 1064 nm.
- lasers with emissions in the range of 940 to 1064 nm are used.
- FIG. 5 illustrates two examples of a butt joint joining the two abutting edges 14 and 15 of a film-shaped web 10, the cross-sectional representations illustrate the oppositely disposed end faces 14 and 15 respectively in the unweighted (left) and joined (right) state.
- an absorber layer 9 Before having one of the two end faces can be provided with an absorber layer 9, as shown, which absorbs the welding light used and thereby causes the melting of the two end faces.
- both end faces 14 and 15 may be coated with an absorber material.
- the end faces 14 and 15 are arranged perpendicular to the two surfaces of the film-shaped web 10.
- the irradiation of the welding light is in this case preferably oblique to the adjacent end faces 14 and 15 and thus obliquely to the two surfaces of the film-shaped web 10.
- the two end faces are preferably as in Representation b) of Figure 5 is shown, obliquely to the surface and thus also arranged obliquely to the irradiation direction of the light.
- the joint 11 has a larger area, whereby the tensile load per unit area is reduced when tensioning the film-shaped web 10.
- the surface of the joint 11 can be further increased and their elongation under tensile load can be further reduced.
- the two web ends or abutting surfaces 14 and 15 of a film web 10 have a step profiling that is complementary to one another.
- an absorber layer 9 can be used to absorb the welding light again.
- the step length is preferably a multiple of the film thickness. Step lengths in the range of 5 to 150 mm are advantageous, with step lengths of about 20 mm being preferred. Multiple levels are also possible.
- the steps of the profile can also be formed inclined, whereby a good illumination of the end faces 14 is achieved with perpendicular to the surface of the film-shaped web 10 directed welding light.
- the angle between the inclined ramps and the intermediate plateau of such grading preferably has a value in the range of 45 to 60 degrees, with an angle of 60 degrees being preferred.
- the joint surfaces to be joined 14 and 15 of the film web 10 are prepared in the form of a complementarily shaped tongue and groove profile, groove and spring are preferably performed as shown with a slight taper to allow easy telescoping.
- This profile shape is characterized in particular by a great security against unwanted vertical offset of the two web ends when connecting.
- the spring length or groove depth can exceed the film thickness.
- an absorption layer 9 can also be applied to one or both abutment surfaces 14 and 15 in this profile design in order to facilitate the bonding of the surface substrate ends by locally concentrated absorption of the welding light. If the abutting surfaces 14 and 15 of the film web ends are joined together by means of ultrasonic welding, no absorber coating 9 is required.
- the individual film strips are preferably made of a polymer that is transparent to the wavelengths of light used for welding.
- film-shaped webs are therefore advantageous z.
- thermoplastic substrates such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyphenylene sulfide (PPS), polyetheretherketones (PEEK), polyamide (PA), polyolefins and polyimides (PI) used.
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- PPS polyphenylene sulfide
- PEEK polyetheretherketones
- PA polyamide
- PI polyolefins and polyimides
- the joining zone 11 When welding the end faces of uniaxially stretched film webs 10, the material structure within the joining zone 11 z. B. disturbed by recrystallization, whereby the joining zone is mechanically and chemically less resilient and thus may result in the intended use undesirable ripples and distortions at the joining zone 11.
- the joining zones 11, 21 and 31 of the individual endless belts 10, 20 and 30, etc. are therefore arranged offset relative to one another, as illustrated in FIG. 2, with respect to the direction of circulation LR of the clothing.
- This staggered arrangement relieves the individual joints by the on the covering 1 acting tensile forces in the amount of joints of the undisturbed foil material of each adjacent adjacent lanes are added. An elongation of the joints is so effectively prevented, so that the continuous covering in normal operation no ripples or warping is formed.
- the transverse to the direction of rotation LR acting on a fabric tension forces 1 are substantially less than the longitudinal thereto, so that in normal operation, no expansion of the joints between the individual endless belts 10, 20 and 30 occurs.
- the connection of adjacent endless belts can be done by joining the front edges of the film-shaped webs by means of ultrasonic welding or transmission laser welding.
- the connection of two side edges 13, 14 can be done analogously to the end edges of a film web abutting or using a profiling of the side edges forming edge surfaces.
- the schematic representation of Figure 8 shows an arrangement for surface transmission laser welding of the two endless belts 10 and 20 at their side edges.
- the adjoining edge surfaces are chamfered, so that the perpendicular to the surfaces of the endless belts 10 and 20 irradiated NIR laser light 61 impinges laterally on the edge surfaces.
- At least one of the two edge surfaces is provided with an absorber coating.
- the fan-shaped light beam 61 emitted by a laser 60 is linearly converged onto the connecting surface 50 via a roller 63 transparent to the wavelength used by the film material of the endless belts 10 and 20 that is transparent to the laser light.
- the laser energy concentrated in this way is absorbed at the connection surface 50 in the region of the line 62 and converted into thermal energy.
- the transparent roller 63 presses with a predetermined force on the surfaces of the endless film webs 10 and 20, so that the two webs are pressed against one another in the region around the line-shaped melting zone 62.
- the transparent roller 63 presses with a predetermined force on the surfaces of the endless film webs 10 and 20, so that the two webs are pressed against one another in the region around the line-shaped melting zone 62.
- the bonding surface 50 is passed through the nip formed between two rolls 64 and 65 so that the edge surfaces of the sheet-like sheets 10 and 20 abutting against the bonding surface 50 are pressed against each other.
- the connecting surface 50 passes through the nip in the transverse direction QR for reasons of clarity.
- the rollers 64 and 65 are usually arranged, like the transparent roller of FIG. 8, such that the connection surface 50 is guided in the direction of travel LR through the nip between the rollers 64 and 65.
- the laser source 60 irradiates the portion of the bonding surface 50 located in the nip over its entire extent in the transverse direction QR.
- a covering 1 joined according to the above embodiments from a plurality of film-shaped webs can be manufactured using conventional joining techniques in any widths and thus adapted to the requirement of a respective paper machine.
- a fabricated as described above fabric 1 has a high mechanical stability and tensile strength and does not tend in normal operation to the formation of ripples or warping.
- FIG. 10 shows a film-shaped web 10 with a joint 11 extending at an angle to the direction of rotation LR. This means that the joint does not run parallel to the transverse direction QR of the film-shaped web 10.
Landscapes
- Paper (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110079517 DE102011079517A1 (en) | 2011-07-21 | 2011-07-21 | Fitted endless fabric |
PCT/EP2012/003352 WO2013010678A1 (en) | 2011-07-20 | 2012-07-20 | Spliced endless clothing |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2734672A1 true EP2734672A1 (en) | 2014-05-28 |
EP2734672B1 EP2734672B1 (en) | 2017-12-13 |
Family
ID=46888357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12761888.2A Not-in-force EP2734672B1 (en) | 2011-07-21 | 2012-07-20 | Spliced endless clothing |
Country Status (5)
Country | Link |
---|---|
US (1) | US9169598B2 (en) |
EP (1) | EP2734672B1 (en) |
CN (1) | CN204151608U (en) |
DE (1) | DE102011079517A1 (en) |
WO (1) | WO2013010678A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013201579A1 (en) * | 2013-01-31 | 2014-07-31 | Ingenieurbüro Gummi- Und Kunststofftechnik Di Martina Fritz | Continuous conveying and/or drive belt i.e. manure belt, for foodstuff production industry for egg production, has opposite ends including edges, which include gradation upto shortly before half of belt thickness in seam zone in width |
EP3481993A4 (en) * | 2016-08-04 | 2020-03-04 | AstenJohnson, Inc. | Reinforced element for industrial textiles |
DE102019134837A1 (en) * | 2019-12-18 | 2021-06-24 | Voith Patent Gmbh | Covering |
DE102020105480A1 (en) * | 2020-03-02 | 2021-04-01 | Voith Patent Gmbh | Seam for a perforated plastic film |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4369081A (en) * | 1981-08-31 | 1983-01-18 | Albany International Corp. | Method of securing a foam layer to a belt |
US4541895A (en) | 1982-10-29 | 1985-09-17 | Scapa Inc. | Papermakers fabric of nonwoven layers in a laminated construction |
US5670230A (en) | 1994-10-11 | 1997-09-23 | Xerox Corporation | Endless seamed belt with high strength |
US6290818B1 (en) * | 1999-05-18 | 2001-09-18 | Albany International Corp. | Expanded film base reinforcement for papermaker's belts |
JP2004036046A (en) | 2002-07-04 | 2004-02-05 | Ichikawa Woolen Textile Co Ltd | Papermaking press felt |
PL1725599T3 (en) * | 2004-03-16 | 2011-01-31 | Albany Int Corp Albany | Polyurethane coated belts comprising nanofillers |
CN106378970A (en) | 2008-12-12 | 2017-02-08 | 阿尔巴尼国际公司 | Industrial fabric including spirally wound material strips |
DE102011005673A1 (en) * | 2011-03-17 | 2012-09-20 | Voith Patent Gmbh | Laminated endless belt |
-
2011
- 2011-07-21 DE DE201110079517 patent/DE102011079517A1/en not_active Withdrawn
-
2012
- 2012-07-20 US US14/234,045 patent/US9169598B2/en not_active Expired - Fee Related
- 2012-07-20 WO PCT/EP2012/003352 patent/WO2013010678A1/en active Application Filing
- 2012-07-20 CN CN201290000678.4U patent/CN204151608U/en not_active Expired - Lifetime
- 2012-07-20 EP EP12761888.2A patent/EP2734672B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2013010678A1 * |
Also Published As
Publication number | Publication date |
---|---|
US9169598B2 (en) | 2015-10-27 |
WO2013010678A1 (en) | 2013-01-24 |
DE102011079517A1 (en) | 2013-01-24 |
US20140166224A1 (en) | 2014-06-19 |
EP2734672B1 (en) | 2017-12-13 |
CN204151608U (en) | 2015-02-11 |
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