DE102008025237A1 - Device for acting on sheet material by means of a pressurized medium - Google Patents
Device for acting on sheet material by means of a pressurized medium Download PDFInfo
- Publication number
- DE102008025237A1 DE102008025237A1 DE200810025237 DE102008025237A DE102008025237A1 DE 102008025237 A1 DE102008025237 A1 DE 102008025237A1 DE 200810025237 DE200810025237 DE 200810025237 DE 102008025237 A DE102008025237 A DE 102008025237A DE 102008025237 A1 DE102008025237 A1 DE 102008025237A1
- Authority
- DE
- Germany
- Prior art keywords
- nozzle
- pressure
- controllable
- bars
- nozzle bars
- 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- Withdrawn
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H18/00—Needling machines
- D04H18/04—Needling machines with water jets
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0423—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material for supplying liquid or other fluent material to several spraying apparatus
Abstract
Die Erfindung betrifft eine Vorrichtung zur Beaufschlagung von flächigem Material mittels eines unter Druck stehenden Mediums, bestehend aus zwei Düsenbalken, den Düsenbalken vorgeordneten Druckversorgungen sowie einer mit der Druckversorgung verbundenen Steuerung. Erfindungsgemäß ist vorgesehen, dass den Düsenbalken (2, 3) je eine steuerbare Druckversorgung (4, 5) zugeordnet ist, wobei durch die Steuerung (6) zum Umschalten zwischen den Düsenbalken (2, 3) die Druckbeaufschlagung der Düsenbalken (2, 3) über die Druckversorgungen (4, 5) in vorgegebener Weise veränderbar ist.The invention relates to a device for acting on sheet material by means of a pressurized medium, consisting of two nozzle bars, the nozzle bar upstream pressure supplies and a controller connected to the pressure supply. According to the invention, the nozzle bars (2, 3) are each assigned a controllable pressure supply (4, 5), the pressure being applied to the nozzle bars (2, 3) by the control (6) for switching between the nozzle bars (2, 3). via the pressure supplies (4, 5) is variable in a predetermined manner.
Description
Die Erfindung betrifft eine Vorrichtung zur Beaufschlagung von flächigem Material mittels eines unter Druck stehenden Mediums gemäß dem Oberbegriff von Anspruch 1.The The invention relates to a device for the application of planar Material by means of a pressurized medium according to the Preamble of claim 1.
Aus
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Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung der gattungsgemäßen Art zu verbessern und insbesondere Umschaltvorgänge während des Betriebes zu ermöglichen.task It is the object of the present invention to provide a device of the generic type Way to improve and in particular switching operations during to enable the operation.
Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des Hauptanspruches. Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Solved This object is achieved by the characterizing features of the main claim. Advantageous developments of the invention will become apparent from the Dependent claims.
Gemäß der Erfindung ist vorgesehen, dass jeder der beiden Düsenstreifen an eine eigene steuerbare Druckversorgung geschaltet ist und zum Umschalten von einem Düsenbalken auf den anderen Düsenbalken die eine Druckversorgung heruntergefahren während die zweite Druckversorgung hochgefahren wird. Die Zeitverläufe (Kurven), nach denen die eine Druckversorgung runter und gleichzeitig die andere Druckversorgung hochgefahren wird, sind derartig gewählt, so dass sich während dieses Umschaltvorganges die Art und Qualität der hydrodynamischen Beaufschlagung des zu bearbeitenden Gutes nicht verändert. Insbesondere sind die Kurven so gewählt, dass die Summe der hydrodynamischen Energie, welche durch die beiden Düsenbalken in das Gut eingebracht wird, gleich bleibt.According to the Invention is provided that each of the two nozzle strips is connected to its own controllable pressure supply and the Switching from one nozzle bar to the other nozzle bar shut down one pressure supply while the second Pressure supply is started up. The time courses (curves), after which one pressure supply down and at the same time the other Pressure supply is booted are chosen such so that during this switching process, the type and Quality of the hydrodynamic admission of the to be processed Good not changed. In particular, the curves are chosen that the sum of the hydrodynamic energy passing through the two Nozzle bar is introduced into the estate, remains the same.
Gemäß einer Ausgestaltung der Erfindung sind die wenigstens zwei Düsenbalken, zwischen denen umgeschaltet werden kann, an jeweils eine steuerbare Hochdruckpumpe als Druckversorgung geschaltet. Über eine Steuerung werden die beiden Hochdruckpumpen nun wie zuvor beschrieben gefahren, d. h. die Leistung der einen Pumpe wird hochgefahren, währen die andere Hochdruckpumpe heruntergefahren wird. Die Steuerung nimmt das Hoch- und Runterfahren der Pumpen entsprechend gespeicherter Kennlinien (Kurven) vor.According to one Embodiment of the invention are the at least two nozzle bars, between which can be switched to each one controllable High pressure pump connected as pressure supply. Over a Control the two high pressure pumps now as previously described driven, d. H. the power of one pump is raised, while the other high pressure pump is shut down. The controller will take the pumps up and down accordingly stored characteristic curves (curves).
Eine bevorzugte Ausgestaltung der Erfindung sieht bei einer Anlage mit mehreren Düsenbalken, welche mehreren Vernadelungstrommeln und/oder Vernadelungsbändern als Bearbeitungsstationen zugeordnet sind, vor, dass jeweils ein Düsenbalken einer Bearbeitungsstation als zuschaltbarer Reservebalken fungiert. Diese Reserve-Düsenbalken sind über schaltbare Ventile an eine gemeinsame Hochdruckpumpe angeschlossen, welche mit einer Steuerung verbunden ist. Die weiteren Düsenbalken werden von separaten Hochdruckpumpen gespeist, die ebenfalls mit der Steuerung verbunden sind. Nun kann in jeder der Bearbeitungsstationen während des Betriebes und ohne Produktionsausfall bzw. Produktion minderer Qualität der Düsenstreifen eines Düsenbalkens gewechselt oder ein Düsenbalken getauscht oder umgebaut werden.A preferred embodiment of the invention provides for a plant a plurality of nozzle bars, which several needling drums and / or Needle strapping associated with processing stations are, in front of each, a nozzle bar of a processing station acts as a switchable reserve bar. These reserve nozzle bars are via switchable valves to a common high-pressure pump connected, which is connected to a controller. The others Nozzle bars are fed by separate high-pressure pumps, the also connected to the controller. Well in each of the Processing stations during operation and without production loss or production of inferior quality of the nozzle strips a nozzle bar or a nozzle bar exchanged or rebuilt.
Dient die erfindungsgemäße Bearbeitungsstation der Wasserstrahlvernadelung, so handelt es sich bei den steuerbaren Druckversorgern um steuerbare Hochdruckpumpen. Als steuerbarer Druckversorger kann auch eine Hochdruckpumpe mit einer steuerbaren Drossel vorgesehen sein. Bei einer Einrichtung zur Heißdampfvernadelung handelt es sich bei den Druckversorgern um entsprechend steuerbare Dampfdruckerzeuger.serves the processing station of the water jet needling according to the invention, Thus, the controllable pressure suppliers are controllable High pressure pumps. As a controllable pressure supplier can also be a high pressure pump be provided with a controllable throttle. At a facility For hot steam needling, it is the pressure supplier by appropriately controllable steam pressure generator.
Des Weiteren erfolgt die Erläuterung eines Ausführungsbeispieles anhand der Zeichnungen.Of Further, the explanation of an embodiment is given based on the drawings.
Die
beiden Düsenbalken sind mit je einem steuerbaren Druckversorger
Die Düsenbalken D1, D4, D5, D7, D8, D9, D10, D11 in den Stationen sind mit jeweils einer eigenen steuerbaren Hochdruckpumpe HD1, HD4, HD5, HD7, HD8, HD9, HD10, HD11 verbunden. Diese Düsenbalken D1, D4, D5, D7, D8, D9, D10, D11 sind während der Produktion in Betrieb und werden entsprechend der vorgesehenen Produktionsweise beaufschlagt.The Nozzle bars D1, D4, D5, D7, D8, D9, D10, D11 in the stations are each equipped with their own controllable high-pressure pump HD1, HD4, HD5, HD7, HD8, HD9, HD10, HD11 connected. These nozzle bars D1, D4, D5, D7, D8, D9, D10, D11 are in production in operation and according to the intended mode of production applied.
Die Düsenbalken D2, D3, D6 und D12 sind über Schaltventile V2, V3, V6 und V12 mit einer Hochdruckpumpe HD als Druckversorgung verbunden. Die Hochdruckpumpe HD sowie die weiteren Hochdruckpumpen HD1–HD12 stehen mit einer nicht dargestellten Steuerung in Wirkverbindung, welche die einzelnen Pumpen sowohl in der Produktion als auch zum Umschalten zwischen Düsenbalken ansteuert.The Nozzle bars D2, D3, D6 and D12 are over switching valves V2, V3, V6 and V12 with a high-pressure pump HD as pressure supply connected. The high pressure pump HD and the other high pressure pumps HD1-HD12 are available with a controller, not shown in operative connection, which the individual pumps both in production as well as to switch between nozzle bar controls.
Während der Produktion sind diese mit der zentralen Hochdruckpumpe verbundenen Düsenbalken D2, D3, D6 und D12 üblicherweise nicht in Betrieb. Soll nun in einem der Düsenbalken D1, D4, D5, D7, D8, D9, D10, D11 der Düsenstreifen gewechselt werden, so erfolgt das Zuschal ten des in der entsprechenden Station vorhandenen Düsenbalkens D2, D3, D6 bzw. D12.While In production, these are connected to the central high-pressure pump Nozzle beams D2, D3, D6 and D12 usually not in operation. If now in one of the nozzle bars D1, D4, D5, D7, D8, D9, D10, D11 of the nozzle strips are changed, so the addition of the one present in the corresponding station takes place Nozzle bar D2, D3, D6 or D12.
Im vorliegenden Beispiel sei angenommen, dass im Düsenbalken D8 der Düsenstreifen zu wechseln ist. Die Anlage ist in Produktion, d. h. die Düsenbalken D1, D4, D5, D7, D8, D9, D10, D11 arbeiten, die Düsenbalken D2, D3, D6 und D12 sind nicht in Betrieb, die Ventile V2, V3, V6 und V12 sind geschlossen, die Hochdruckpumpe HD ist abgeschaltet.in the This example is assumed to be in the nozzle bar D8 of the nozzle strip is to change. The facility is in Production, d. H. the nozzle bars D1, D4, D5, D7, D8, D9, D10, D11, which are nozzle bars D2, D3, D6 and D12 not in operation, valves V2, V3, V6 and V12 are closed, the high-pressure pump HD is switched off.
Zur Vorbereitung des Düsenstreifenwechsels wird nun die Hochdruckpumpe HD gestartet. Die Hochdruckpumpe HD wird nun nach Öffnen des Ventils V6 hochgefahren, d. h. der Druck für den Düsenbalken D6 wird von Null stetig auf den Druckwert erhöht, mit dem der Düsenbalken D8 im Betrieb beaufschlagt wurde. Während des Hochfahrens der Hochdruckpumpe HD wird die Hochdruckpumpe HD8 des Düsenbalkens D8 stetig von dem Ausgangswert im Betrieb auf den Wert Null heruntergefahren. Die Beaufschlagung der Materialbahn erfolgt nun anstelle Düsenbalken D8 durch Düsenbalken D6.to Preparation of the nozzle strip change is now the high pressure pump HD started. The high-pressure pump HD will open after opening of the valve V6 started up, d. H. the pressure for the nozzle bar D6 is steadily increased from zero to the pressure value with the the nozzle beam D8 was acted upon in operation. While startup of high-pressure pump HD becomes high-pressure pump HD8 of the nozzle bar D8 steadily from the initial value during operation Shut down to zero. The admission of the material web takes place now instead of nozzle bar D8 through nozzle bars D6.
Nach dem Düsenstreifenwechsel im Düsenbalken D8 wird in analoger Weise wieder auf diesen Balken zurückgeschaltet. Während des Hochfahrens der Hochdruckpumpe HD8 wird die Hochdruckpumpe HD für den Düsenbalken D6 runtergefahren. Die Beaufschlagung der Materialbahn erfolgt nun wieder durch den Düsenbalken D8.To the nozzle strip change in the nozzle bar D8 is switched back to this bar in an analogous manner. During startup of the high pressure pump HD8 is the High pressure pump HD for nozzle bar D6 lowered. The loading of the material web is now again through the Nozzle bar D8.
- 11
- Vernadelungstrommelneedling
- 22
- Düsenbalkennozzle beam
- 33
- Düsenbalkennozzle beam
- 44
- Hochdruckpumpehigh pressure pump
- 55
- Hochdruckpumpehigh pressure pump
- 66
- Steuerungcontrol
- D1–D12D1-D12
- Düsenbalkennozzle beam
- HD1–HD12HD1-HD12
- Hochdruckpumpehigh pressure pump
- V2V2
- Sperrventilcheck valve
- V3V3
- Sperrventilcheck valve
- V6V6
- Sperrventilcheck valve
- V12V12
- Sperrventilcheck valve
- HDHD
- Hochdruckpumpehigh pressure pump
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 60307058 T2 [0002] - DE 60307058 T2 [0002]
- - DE 102004030413 A1 [0003] DE 102004030413 A1 [0003]
- - DE 102004049146 A1 [0003] DE 102004049146 A1 [0003]
- - DE 10112446 A1 [0004] - DE 10112446 A1 [0004]
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810025237 DE102008025237A1 (en) | 2008-05-27 | 2008-05-27 | Device for acting on sheet material by means of a pressurized medium |
PCT/DE2009/000705 WO2009143809A1 (en) | 2008-05-27 | 2009-05-13 | Apparatus for treating sheetlike material by means of a pressurized medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810025237 DE102008025237A1 (en) | 2008-05-27 | 2008-05-27 | Device for acting on sheet material by means of a pressurized medium |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008025237A1 true DE102008025237A1 (en) | 2009-12-03 |
Family
ID=41055182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810025237 Withdrawn DE102008025237A1 (en) | 2008-05-27 | 2008-05-27 | Device for acting on sheet material by means of a pressurized medium |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102008025237A1 (en) |
WO (1) | WO2009143809A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2363520A1 (en) * | 2010-02-24 | 2011-09-07 | Sandler AG | Method and device for changing the structure while manufacturing water jet cured, structured unwoven fabrics |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10008389A1 (en) * | 2000-02-23 | 2001-08-30 | Guenter Slowik | Influencing drop spectrum of suspensions comprises adjusting splitting ratio of partial streams divided by nozzles, and adjusting average diameter of drops using valve or pump |
DE10008158A1 (en) * | 2000-02-23 | 2001-08-30 | Guenter Slowik | Method and line system for supplying fluid substances to one or more nozzles |
DE10019930A1 (en) * | 2000-04-20 | 2001-10-25 | Hauni Maschinenbau Ag | Glue-applicator for smokers' products incorporates applicator nozzle, rotary roller valve, feeder pipe, and chamber housing and irregularities in peripheral surface |
DE10112446A1 (en) | 2001-02-14 | 2002-08-29 | Fleissner Gerold | Closing unit for the nozzle strip on a nozzle bar for the hydrodynamic needling of fibers of a material web |
DE10019342B3 (en) * | 1999-07-16 | 2006-02-09 | Sächsisches Textilforschungsinstitut e.V. | Consolidation of non-woven webs uses gas jets at critical velocity produced by parallel or convergent nozzles |
DE102004030413A1 (en) | 2004-06-23 | 2006-02-23 | Fleissner Gmbh | Device for hydrodynamically entangling the fibers of a fibrous web |
DE102004049146A1 (en) | 2004-10-07 | 2006-04-13 | Fleissner Gmbh | Wasservernadelungsvorrichtung |
DE202006000947U1 (en) * | 2006-01-21 | 2006-08-17 | Kaushal, Christian | Stageless spraying device for liquids has two groups of nozzles with possibility of switching between them at adjustable time point |
DE60307058T2 (en) | 2002-02-26 | 2007-01-25 | Rieter Perfojet | APPARATUS FOR REGULAR PRODUCTION OF WATER RADIATION AND ITS APPLICATION IN A DEVICE FOR BONDING NON-WOVEN FIBERS |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3508308A (en) * | 1962-07-06 | 1970-04-28 | Du Pont | Jet-treatment process for producing nonpatterned and line-entangled nonwoven fabrics |
DE10061985A1 (en) * | 2000-12-13 | 2002-06-20 | Fleissner Gerold | Process for the hydrodynamic loading of a material web with water jets and nozzle bars for the production of liquid jets |
DE10064687A1 (en) * | 2000-12-22 | 2002-07-04 | Fleissner Maschf Gmbh Co | Process for the hydrodynamic application of a product web, also provided with finite products, with water jets and a nozzle device for producing liquid jets |
US7225946B2 (en) * | 2003-12-11 | 2007-06-05 | Dtic Dispensing Technologiesa A Division Of Stainless Steel Coatings, Inc. | Constant pressure fluid-dispensing pumping system and method |
-
2008
- 2008-05-27 DE DE200810025237 patent/DE102008025237A1/en not_active Withdrawn
-
2009
- 2009-05-13 WO PCT/DE2009/000705 patent/WO2009143809A1/en active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10019342B3 (en) * | 1999-07-16 | 2006-02-09 | Sächsisches Textilforschungsinstitut e.V. | Consolidation of non-woven webs uses gas jets at critical velocity produced by parallel or convergent nozzles |
DE10008389A1 (en) * | 2000-02-23 | 2001-08-30 | Guenter Slowik | Influencing drop spectrum of suspensions comprises adjusting splitting ratio of partial streams divided by nozzles, and adjusting average diameter of drops using valve or pump |
DE10008158A1 (en) * | 2000-02-23 | 2001-08-30 | Guenter Slowik | Method and line system for supplying fluid substances to one or more nozzles |
DE10019930A1 (en) * | 2000-04-20 | 2001-10-25 | Hauni Maschinenbau Ag | Glue-applicator for smokers' products incorporates applicator nozzle, rotary roller valve, feeder pipe, and chamber housing and irregularities in peripheral surface |
DE10112446A1 (en) | 2001-02-14 | 2002-08-29 | Fleissner Gerold | Closing unit for the nozzle strip on a nozzle bar for the hydrodynamic needling of fibers of a material web |
DE60307058T2 (en) | 2002-02-26 | 2007-01-25 | Rieter Perfojet | APPARATUS FOR REGULAR PRODUCTION OF WATER RADIATION AND ITS APPLICATION IN A DEVICE FOR BONDING NON-WOVEN FIBERS |
DE102004030413A1 (en) | 2004-06-23 | 2006-02-23 | Fleissner Gmbh | Device for hydrodynamically entangling the fibers of a fibrous web |
DE102004049146A1 (en) | 2004-10-07 | 2006-04-13 | Fleissner Gmbh | Wasservernadelungsvorrichtung |
DE202006000947U1 (en) * | 2006-01-21 | 2006-08-17 | Kaushal, Christian | Stageless spraying device for liquids has two groups of nozzles with possibility of switching between them at adjustable time point |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2363520A1 (en) * | 2010-02-24 | 2011-09-07 | Sandler AG | Method and device for changing the structure while manufacturing water jet cured, structured unwoven fabrics |
Also Published As
Publication number | Publication date |
---|---|
WO2009143809A1 (en) | 2009-12-03 |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R081 | Change of applicant/patentee |
Owner name: TRUETZSCHLER NONWOVENS GMBH, DE Free format text: FORMER OWNER: FLEISSNER GMBH, 63329 EGELSBACH, DE Effective date: 20110808 |
|
R005 | Application deemed withdrawn due to failure to request examination |