EP0879120A1 - Device for processing a strand of plastic material - Google Patents
Device for processing a strand of plastic materialInfo
- Publication number
- EP0879120A1 EP0879120A1 EP97902241A EP97902241A EP0879120A1 EP 0879120 A1 EP0879120 A1 EP 0879120A1 EP 97902241 A EP97902241 A EP 97902241A EP 97902241 A EP97902241 A EP 97902241A EP 0879120 A1 EP0879120 A1 EP 0879120A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- segments
- lever
- strand
- drive
- 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- Withdrawn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
- 239000000463 material Substances 0.000 title claims abstract description 16
- 238000012545 processing Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000004826 seaming Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 210000000629 knee joint Anatomy 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21C—MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH
- A21C11/00—Other machines for forming the dough into its final shape before cooking or baking
- A21C11/10—Other machines for forming the dough into its final shape before cooking or baking combined with cutting apparatus
- A21C11/103—Other machines for forming the dough into its final shape before cooking or baking combined with cutting apparatus having multiple cutting elements slidably or rotably mounted in a diaphragm-like arrangement
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21C—MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH
- A21C11/00—Other machines for forming the dough into its final shape before cooking or baking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
- B26D1/60—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is mounted on a movable carriage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0596—Cutting wall of hollow work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8798—With simple oscillating motion only
- Y10T83/8799—Plural tool pairs
- Y10T83/8801—Plural tools on single oscillating arm [i.e., tool holder]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8798—With simple oscillating motion only
- Y10T83/8804—Tool driver movable relative to tool support
- Y10T83/8805—Cam or eccentric revolving about fixed axis
Definitions
- the invention relates to a device for processing, possibly constricting, possibly simultaneously closing a sheathing and possibly separating, a strand of plastic material, in particular a multi-layer, extruded strand, at predetermined intervals with a tool that consists of several segments that can be moved against each other.
- EP 0 360 446 B shows and describes a similar separating device for cutting dough strands to length.
- Both known devices are suitable for severing defined longitudinal sections of a strand, but are very inflexible due to their construction.
- the invention has for its object to provide a device of the type mentioned which can be used flexibly and thus effectively.
- This object is achieved in that the tool consists of two separable sections, each of which contains part of the movable segments.
- the two tools can be opened so far that they can pass each other.
- the tool is arranged to be vertically movable.
- the travel speed of the tool can be matched to the transport speed of the strand.
- the strand can be produced and transported continuously and does not have to be braked to length.
- a particularly advantageous development of the invention resides in the fact that the traversing speed or the traversing path and the closing or opening speed of the tool can be coordinated with one another in the method directed from top to bottom.
- An advantageous embodiment of the invention resides in the fact that the divisible tool is separated into two parts when moving from bottom to top at least in a central section of the travel path.
- the segments of the tool abut one another with at least one surface and are supported on sliding surfaces of a polygonal housing with another surface, and if an actuating element acts on at least one segment, which actuates this segment directly and the rest Can move segments indirectly into the closed position and preferably also into the open position.
- This configuration makes it possible to move all segments at least from its open position into its closed position via a single actuating element, since when one segment is moved, the other and the sliding surfaces are forcibly moved with it. But also for moving the segments from the closed position into the open position, this actuating element can be used as a push and pull element with a corresponding design.
- a further actuating element acts on one of the segments of the tool, which actuating element is able to move this segment and thus indirectly the other segments into the open position.
- This additional actuating element can also be used to transfer the segments of the tool from their closed position to their open position.
- a device with a two-part housing that one on each segment of the two housing halves Actuating element which can move the segments into the respective closed position and preferably also into the open position.
- a further actuating element acts on each segment of the two housing halves, which actuating element can move this segment and thus indirectly the other segments of this housing half into the open position.
- this further actuating element acts on a segment lying on the outside when the housing is open, it also contributes to securing this segment.
- a toothed belt is provided as the actuating element, which acts on one of the segments.
- a toothed belt works largely free of wear and at least a low elasticity, which has an advantageous effect for fast-running operation.
- Another advantageous embodiment of the invention is that the two halves of the housing are attached to movably supported support columns, which are hollow and are provided in their interior with a drive for adjusting the segments.
- a link-like program card can be used in the drive train for the movement of the segments, via which the closing and opening movement of the segments is dependent on the lifting movement of the tool.
- a device for attaching closure elements for the constricted strand is provided in the area of the tool.
- the device for attaching two closure elements can be provided, a cutting device for the constricted strand being able to engage between the two attached closure elements.
- the invention also relates to a device for driving a tool with an annular movement, the tool being arranged on a lever arm whose end remote from the tool is fastened to a rotary bearing.
- Tools arranged in this way can easily perform an arc-shaped movement to the workpiece to be machined and back again.
- the invention has for its object to propose a device of the type mentioned, which allows machining of the workpiece by the tool during a longitudinal movement of the workpiece.
- the pivot bearing is mounted to be longitudinally displaceable and that a drive device acts on the lever arm, which simultaneously pivots the lever arm around the pivot bearing and longitudinally displaces the pivot bearing. Due to this simultaneous swiveling and longitudinal movement, the tool performs an annular movement. The tool approaches the workpiece and moves with it at the same time. After swiveling away from the workpiece, the tool returns to its starting position.
- An advantageous embodiment of the invention is that the drive device is designed eccentrically.
- a toggle lever acts on the lever arm, the first arm of which is rotatably mounted on the lever arm with one end and is rotatably fastened on the second arm with its other end, the end thereof facing away from it is mounted in a stationary pivot point, the drive for the lever arm engaging via the toggle lever.
- a further advantageous embodiment of the invention is that on the first arm of the toggle lever associated with the lever arm, a double-armed lever is pivotally attached in a first pivot bearing, the second pivot bearing of which is at least indirectly rotatably mounted and the third pivot bearing is driven on a circular path.
- a further advantageous embodiment of the invention is characterized in that a lever arm is rotatably mounted on the second pivot bearing, the end of which is remote from the second pivot bearing is rotatably supported in a stationary manner.
- a further lever arm is arranged on the third rotary bearing and is connected to a stationary rotary drive at its end facing away from the third rotary bearing.
- first pivot bearing of the double-armed lever is provided between the two other pivot bearings.
- Another advantageous embodiment of the invention is that the point of application of the knee on the lever arm is designed to be longitudinally adjustable.
- the fixed pivot bearings are arranged to be adjustable.
- a change in the two directions of movement relative to one another is also possible in this way.
- An advantageous embodiment of the invention also lies in the fact that two mirror-inverted tools are arranged, the lever arms of which are mounted in a common pivot bearing. In particular for workpieces that are advantageously to be machined from both sides at the same time, such an embodiment has proven very useful.
- the two lever arms are positively synchronized via gears or lever connections.
- a mirror-image drive device is arranged on the second lever arm.
- toggle levers or levers are part of perforated disks.
- the invention also relates to a device for driving and / or guiding a two-part tool, in particular a device for processing, possibly constricting, possibly simultaneously sealing a covering and possibly separating a strand of plastic material, in particular a multi-layer, extruded strand , at predetermined intervals, each with a tool that consists of several segments that can be moved against each other.
- the invention has for its object to provide a device of the type mentioned in which exact guidance and reliable drive of the tools is achieved with relatively simple means.
- each tool part is guided and driven along a predetermined line.
- the path of the tool parts can be precisely defined and adapted to the respective requirements.
- An advantageous embodiment of the invention is that the tool parts are arranged on two chain-like drive and / or guide members.
- Chain-like drive elements have proven themselves in practice in many areas; if you are adequately managed yourself, you can easily take on management tasks. In addition, it is possible to separate the drive and management work at least in sections of the facility.
- a further advantageous embodiment of the invention is that the drive and guide elements are arranged parallel to one another and at a small distance from one another at least over part of their distance, as a result of which the tool parts run in this working position relative to one another on this part of the distance.
- a further embodiment has proven to be very advantageous, in which the two route sections running parallel to one another are arranged vertically.
- the two sections of the track running parallel to one another are arranged horizontally, and that a transport device for a strand of dough or the like. is provided, which also has a horizontal section and whose speed can be coordinated with the speed of the tool parts. Particularly sensitive materials can be processed very well with this device without undesired elongation of the dough material.
- Another advantageous embodiment of the invention is that the tool parts are mounted on lever arms and move on a cam track, the two cam tracks of the two tool parts overlap along a contact path of the associated tool parts, and that the tool part yields are stored and are in the working position within the berth.
- Another advantageous embodiment of the invention is that at least in the working area of the tool parts, a curved control rail or the like. is arranged, which controls the mutually movable segments of the tool parts.
- both tool parts are resiliently mounted and loaded with a spring.
- FIG. 11 shows a view of the tool in the closed position and a different actuating element for the tool segments
- Fig. 21 is a schematic representation of a device with two
- FIG. 22 shows a likewise schematic representation of a device with a horizontal section in which the tool parts abut one another and with a transport device for a strand of dough
- FIG. 23 shows a further schematic representation of a device with two crossing lever arms, at the ends of which tool parts are mounted and move largely on a circular path and
- Lever arms and the tool parts. 1 in FIG. 1 denotes a device for constricting, possibly simultaneously closing a covering and possibly severing a strand 2 of plastic material, such as a strand of dough, the severed section of which is not shown.
- the device 1 essentially consists of two divisible tools 3 and 4, both of which are provided with a drive, but of which only the drive 5 of the tool 3 is shown.
- the two halves 31 and 32 of the tool 3 are each arranged at the upper end of a hollow support column 33 and 34, which are pivotally supported by their lower end on the upper bearing 6 of a connecting rod 7 of a crank drive 8.
- the tool 3 is shown in the closed state and in its lower end position, while the second tool 4 is also shown closed but in its upper end position.
- Both tools 3 and 4 - as illustrated in FIG. 10 with the aid of a tool - consist of six trapezoidal segments 35, 36, 37, 38, 39, 40, three of which are each assigned to a tool half 31, 32.
- a hexagonal housing which is divided along a center line, is used to hold the segments. These segments are supported on each other with one surface, while the two free surfaces lie against the housing. As soon as one of these segments is moved, this movement is forcibly transferred to the other segments.
- a push rod and pull rod 41 or 42 which is connected at its end facing away from the respective segment to a crank pin drive 43 or 44, engages two segments 35 and 38.
- a crank disk 47, 48 which in turn carries a pin 49, 50, sits on a drive shaft 45 or 46.
- This bolt 49 or 50 engages in an elongated eye 51, 52 of the push and pull rod 41 or 42.
- the rod is laterally felt on the drive shaft 45 or 46 via a further elongated eye 53 or 54.
- the two segments 35 and 38 connected to the respective push and pull rods 41 and 42 each lie on one Outside of the respective tool half 3 1 and 32; the two segments 37 and 40 located on the other outside are connected to a pulling device 55 and 56, which runs parallel to the adjacent side wall of the housing and brings the respective segment 37, 40 back into the open position shown in FIG. At the same time, the segment is thereby secured when the tool is open.
- FIG. 1 shows the tool according to FIG. 10 with the segments moved together; a toothed belt 61 is provided as the actuating element in the tool part shown on the right, which is driven by the crank disk 47 and engages the segment 35 via a pin 62. One end of the pulling device 55 is fastened to this pin 62.
- Fig. 16 shows the two tools in their most closed state, in which an optimal deformation of the strand is achieved.
- the two tool parts already diverge again while they are still moving downwards. This can be seen in particular on the second auxiliary line 123. Only in the position of the rotary drive 120 reached in FIG. 18 is the lowest position of the tools reached, wherein they are already largely removed from the strand.
- the end position for the widest opening of the two tools 31 and 32 (shown in FIG. 20) is reached via the position visible in FIG. 19. Both tool parts move upwards again, as does this from the position of the pivot bearing 6 in relation to the two auxiliary lines 122 and 123 can be seen.
- the two tools continue to move up (from Fig. 20 to Fig. 13), the tools are also slightly closed at the same time.
- 201 in FIG. 21 denotes a device which has two chains 202 and 203 (not shown in more detail), to each of which a plurality of tool parts 31 and 32 are fastened.
- Both chains 202, 203 have a section 206, 207 in which they run parallel to one another and at a short distance from one another. The distance is set so that corresponding tool parts touch and enclose the dough strand 2, which comes vertically from above from an extruder, not shown, between them and deform or divide.
- mutually movable segments are provided within the tool parts, which are moved together to a greater or lesser extent.
- a curved control rail is provided within each of the two sections 206 and 207.
- a device 221 which also has two chains 222 and 223.
- two parallel sections 226 and 227 of the chains are provided, which, however, are arranged horizontally and in which the tool parts 31, 32 lie closely against one another.
- they enclose the dough strand 2 between them, which is extruded from a lateral extruder nozzle 209 onto a conveyor belt 210.
- the dough strand 2 is divided and the resulting sections 211 are pressed together at the two ends.
- the dough strand can be deformed, which is done via the segments described above.
- a device 231 is equipped with two double-armed lever arms 232, 233 and 234, 235, respectively, which carry a tool part 31 and 32 at their respective ends.
- the tool parts on both sides are moved on a circular path, which overlap in a central area.
- the two tool parts 31, 32 abut one another and then move along a straight line 238. This is made possible by the fact that the tool parts are resiliently mounted.
- the tool parts are loaded by a spring, not shown, whereby a secure mutual contact is selected.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing And Processing Devices For Dough (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996103659 DE19603659C2 (en) | 1996-02-02 | 1996-02-02 | Device for constricting and severing a strand of plastic material |
DE19603659 | 1996-02-02 | ||
DE1996114070 DE19614070A1 (en) | 1996-04-09 | 1996-04-09 | Packaging machine and drive system for e.g. sealing rope-like plastic material in wrapper |
DE19614070 | 1996-04-09 | ||
DE1996124957 DE19624957A1 (en) | 1996-06-24 | 1996-06-24 | Packaging machine and drive system for e.g. sealing rope-like plastic material in wrapper |
DE19624957 | 1996-06-24 | ||
PCT/EP1997/000365 WO1997027979A1 (en) | 1996-02-02 | 1997-01-28 | Device for processing a strand of plastic material |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0879120A1 true EP0879120A1 (en) | 1998-11-25 |
Family
ID=27215866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97902241A Withdrawn EP0879120A1 (en) | 1996-02-02 | 1997-01-28 | Device for processing a strand of plastic material |
Country Status (6)
Country | Link |
---|---|
US (1) | US6439092B1 (en) |
EP (1) | EP0879120A1 (en) |
JP (1) | JP2000505360A (en) |
AU (1) | AU1595897A (en) |
CA (1) | CA2244729C (en) |
WO (1) | WO1997027979A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2897006B1 (en) * | 1998-03-19 | 1999-05-31 | 株式会社コバード | Reclining rod-shaped food cutting method and apparatus |
CN1522246B (en) | 2001-06-28 | 2010-04-21 | 辉瑞产品公司 | Triamide-substituted indoles, benzofuranes and benzothiophenes |
FR2988266B1 (en) * | 2012-03-20 | 2015-02-13 | Marel Stork Food Systems France Sas | METHOD AND MACHINE FOR MANUFACTURING PORTIONS WITH MEANS FOR EJECTING THESE PORTIONS |
WO2017081648A1 (en) * | 2015-11-13 | 2017-05-18 | Freddy Hirsch Group Ag | A sausage cutting apparatus |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE168501C (en) | ||||
US1981059A (en) * | 1932-05-09 | 1934-11-20 | India Rubber Gutta Percha Tele | Method of cutting tubes into lengths and apparatus therefor |
DE1109137B (en) | 1958-05-17 | 1961-06-22 | Goeppinger Kaliko Kunstleder | Process for the production of a water-absorbent synthetic leather with a non-porous structure |
DE1454966A1 (en) * | 1964-08-01 | 1969-04-10 | Basf Ag | Method and device for the production of hollow bodies from thermoplastics in the blow molding process |
US3663672A (en) * | 1969-09-18 | 1972-05-16 | Grace W R & Co | Process for preparing a parison for blow molding |
US3877626A (en) * | 1974-05-21 | 1975-04-15 | Nat Acceptance Company Of Amer | Apparatus for cutting a continuous element of indeterminate length into predetermined lengths |
DE2515643C3 (en) * | 1975-04-10 | 1979-06-28 | Schloemann-Siemag Ag, 4000 Duesseldorf | Device for severing a wire winding strand |
DE2818234C2 (en) * | 1978-04-26 | 1980-07-17 | Jenaer Glaswerk Schott & Gen., 6500 Mainz | Glass scissors |
DE3116089C2 (en) * | 1981-04-23 | 1983-03-31 | Mannesmann AG, 4000 Düsseldorf | Device for separating wire winding strands in the shaft of a coil collecting station |
GB2101924B (en) * | 1981-05-13 | 1985-06-05 | Masao Kobayashi | Apparatus for forming soft food material into globular shape |
US4646404A (en) * | 1983-07-07 | 1987-03-03 | Nippon Acchakutanshi Seizo Kabushiki Kaisha | Apparatus for manufacturing electrical harnesses |
DE3434671A1 (en) * | 1983-09-23 | 1985-05-15 | Elastogran Maschinenbau GmbH, 2844 Lemförde | Device for the transverse cutting of a continuously produced plastics foam strand |
US4608755A (en) * | 1984-11-13 | 1986-09-02 | Braasch Morris C | Portable pipe cutter |
US4988276A (en) * | 1988-08-01 | 1991-01-29 | Nabisco Brands, Inc. | Apparatus for shaping cookie dough |
US4936203A (en) | 1988-09-03 | 1990-06-26 | Rheon Automatic Machinery Co., Ltd. | Apparatus for shaping and arraying spheroidal bodies of food materials |
GB8901987D0 (en) * | 1989-01-30 | 1989-03-22 | Matthews Bernard Plc | Improvements in the manufacture of food stuffs |
US5074038A (en) * | 1991-01-25 | 1991-12-24 | Amp Incorporated | Cable making machine and method of manufacture |
-
1997
- 1997-01-28 WO PCT/EP1997/000365 patent/WO1997027979A1/en active Search and Examination
- 1997-01-28 US US09/117,552 patent/US6439092B1/en not_active Expired - Fee Related
- 1997-01-28 EP EP97902241A patent/EP0879120A1/en not_active Withdrawn
- 1997-01-28 AU AU15958/97A patent/AU1595897A/en not_active Abandoned
- 1997-01-28 CA CA002244729A patent/CA2244729C/en not_active Expired - Fee Related
- 1997-01-28 JP JP52728697A patent/JP2000505360A/en active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO9727979A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6439092B1 (en) | 2002-08-27 |
JP2000505360A (en) | 2000-05-09 |
CA2244729A1 (en) | 1997-08-07 |
AU1595897A (en) | 1997-08-22 |
CA2244729C (en) | 2005-08-23 |
WO1997027979A1 (en) | 1997-08-07 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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