CN1254651A - Roller feeder for printed object with non-uniform thickness - Google Patents
Roller feeder for printed object with non-uniform thickness Download PDFInfo
- Publication number
- CN1254651A CN1254651A CN 99123979 CN99123979A CN1254651A CN 1254651 A CN1254651 A CN 1254651A CN 99123979 CN99123979 CN 99123979 CN 99123979 A CN99123979 A CN 99123979A CN 1254651 A CN1254651 A CN 1254651A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- axle
- roller
- feeder
- feeding unit
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/02—Rollers
- B41J13/03—Rollers driven, e.g. feed rollers separate from platen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
- B41J25/308—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print gap adjustment mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/28—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/28—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers
- B41J3/283—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers on bank books or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/13—Details of longitudinal profile
- B65H2404/133—Limited number of active elements on common axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
- B65H2404/144—Roller pairs with relative movement of the rollers to / from each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/18—Rollers composed of several layers
- B65H2404/185—Rollers composed of several layers easy deformable
Abstract
A roller feed device for a print substrate of non-uniform thickness in a transverse direction relative to a feed axis comprises a first feed unit and a second feed unit disposed substantially opposite one another, each feed unit having a shaft perpendicular to the feed axis for connection to a drive motor for rotating the shaft, and at least one friction roller mounted on the shaft in order to be rotated by the shaft, the friction rollers acting on the print substrate in an operative condition in which the print substrate is interposed between the first feed unit and the second feed unit, in which the shaft of at least one of the first and second feed units is resiliently deformable by flexure in order to bend according to the thickness of the print substrate in the operative condition.
Description
The present invention relates to a kind of roller feeder of print object thing in uneven thickness, specifically, relate to a kind of feeder as described in the preamble as claimed in claim 1.
In various types of printers, for example in dot matrix printer, generally use roller feeder.Such feeder is made up of two relative feeding units, and each feeding unit has the axle of a rigidity, on this root axle some friction rollers is housed, so that promote or pulling along the print object thing.
Under the very thick particular case of print object thing, for example when thickness during greater than 0.5mm, above-mentioned two groups of feeding units all must have driven voller.In fact, if only use driven voller on a feeding unit, and another group has only the running down roller on feeding unit, sends the print object thing to being difficult between the relative roller of these two groups of feeding units.
The shortcoming of known feeder described above is, if print object thing in uneven thickness perpendicular on the direction of sending axis to for example is a bank book that has the ridge parallel with sending axis to, it just can not turn round rightly.In this case, in fact these rollers can not be pressed in enough pressure on the thin part of bankbook, and this will make bankbook to not just, causes the operational failure of printer.
One of possible solution is to make the axle of a feeding unit in two feeding units angle of different-thickness inclination according to bankbook.Yet axle must make corresponding roller also tilt after tilting, so can not reach the purpose that allows roller catch bankbook well.
Another solution is to adopt hinged structure on the axle of a feeding unit, so that the height of each roller can adapt with the thickness of bankbook.But, so just need to adopt the very complicated transmission device that has many joints, will make this feeder very expensive.
The objective of the invention is to prevent to produce above-mentioned problem.For reaching this purpose, the roller feeder described in the claim 1 is adopted in suggestion.
In brief, the invention provides a kind of being used for perpendicular to the roller feeder of sending print object thing in uneven thickness on the axis direction to, it comprises one first feeding unit and one second feeding unit that is arranged to basically relative to each other, each feeding unit all have one piece with send axis normal to, the axle that is used for being connected with drive motors, so that make this root axle rotation, and at least one is installed in above-mentioned axle upward so that driven the friction roller of rotation by this root axle, at above-mentioned print object thing under the operating condition between above-mentioned first feeding unit and second feeding unit, above-mentioned friction roller acts on this print object thing, at this moment, have at least the axle of an assembly to produce elasticity of flexure distortion in above-mentioned first and second feeding units, adapt so that bend to the thickness that is in the print object thing of operating condition.
The present invention also provides a kind of printer that comprises above-mentioned feeder.
Describe embodiments of the invention with reference to the accompanying drawings in detail, the characteristics and the advantage of feeder of the present invention are clearer with making.In the accompanying drawing:
Fig. 1 is the schematic cross-sectional views of embodiment that can use the printer of feeder of the present invention;
Fig. 2 a is installed in the stereogram of the feeder in the above-mentioned printer;
Fig. 2 b is the front view that is in the feeder of operating condition.
Please consult Fig. 1 especially, represented a serial dot matrix printer 100 that bank uses among the figure.This printer 100 has a mechanical support framework 103, and a printhead 106 that has print needle dot matrix (not shown) is arranged in framework 103 inside.Printhead 106 is bearing on the support 109, and support 109 can slide on two guide post 112a, 112b.
Print needle on the printhead 106 is towards a platen 115 parallel with above-mentioned guide post 112a, 112b.A China ink that has soaked printing ink is arranged by this way with 118 reel, that is, make an above-mentioned black part of being with between the print needle and platen 115 of printhead 106.The motion of printhead 106 has formed a print wire 121 on platen 115.
A support platform 124 is hinged on the outside of said frame 103.A bank book 127 is placed on the platform 124, and available manual mode makes it pass the place ahead narrow slit 130 and inserts.Between above-mentioned the place ahead narrow slit 130 and printhead 106, be provided with relative to each other slide plate 133 and support plate 136.Alignment roller 139 (leaning against on the pressing element 142), thickness test rod 143 and the feeding unit 148b that has the running down roller (relative with the feeding unit 148a that has driven voller) are being housed on the support plate 136.Between above-mentioned support plate 136 and printhead 106, be provided with the block of forming from the convex tooth that comes out of slide plate 133 by a series of 145.Be provided with relative to each other lower skateboard 151a and upper slide 151b in a side relative with printhead 106.A feeder is arranged on slide plate 151a and 151b, and this feeder is formed (will be discussed in more detail below) by feeding unit 154a that has driven voller that is opposite from one another and the feeding unit 154b that has driven voller.
The data of printing is imported by means of a suitable cable that is connected on the interface connector 163 by a treating apparatus (not shown).The running of printer 100 is controlled by means of the information of outer screen 169 inputs according to the instruction for the treatment of apparatus input or according to the user by the logic control assembly 166 of a microprocessor.
Under wait (preparation) state of printer 100, alignment roller 139 and the running down roller of above-mentioned feeding unit 148b all upwards lift, so as respectively with the driven voller partition distance of pressing element 142 and feeder 148a.Meanwhile, above-mentioned block 145 also rises, and blocks the inlet that leads to print wire 121.When bankbook 127 inserted the place ahead narrow slit 130, it was just between slide block 133 and support plate 136.Be arranged on an insertion that exists the sensor (not shown) to detect bankbook 127 on the support plate 136.Then, logic control assembly 166 descends alignment roller 139.These alignment rollers 139 align (irrelevant with the information that a pair of alignment sensor is imported, it is arranged on the support plate 136, and is not shown) bankbook 127 with print wire 121, and push bankbook 127 to block 145 simultaneously.
In case after bankbook 127 alignment, the running down roller of feeder 148b and block 145 just descend.Then, assembly 148a, 148b send along an axis 172 vertical with print wire 121 bankbook 127 to print wire 121.Bankbook 127 is sent on the print wire 121 between printhead 106 (and corresponding China ink with 118) and the platen 115.Printhead 106 leaves the distance of platen 115 can be according to being regulated dynamically by the thickness of lever 143 detected bankbooks 127.Then, bankbook 127 advances in the mode of intermittent movement, every pause of bankbook 127 once, printhead 106 just once (alternately carries out on both direction) by print wire 121, comes so just print several rows letter or figure successively on bankbook 127.Then, the bankbook feeder 154a, the 154b that are set at print wire 121 downstreams hauls motion.
When finishing when once printing operation, the running down roller of above-mentioned feeder 148b just lifts, and the direction of rotation of the driven voller of feeder 154a, 154b and 148a is reverse simultaneously, so that force bankbook 127 to advance towards the place ahead narrow slit 130.Specifically, when bankbook 127 is crossed feeder 148a, but leave before feeder 154a, the 154b, the running down roller of feeder 148b just descends.So, bankbook 127 just by roller 139 to extrapolation, make bankbook 127 leave alignment line finish so that the operator can be seen print operation.The running down roller and the block 145 of alignment roller 139, feeder 148 all lift, so printer 100 returns to SBR.
If this serial dot-matrix printer has different structures, for example, there are two or more have the feeder of driven voller, perhaps, be a kind of run-in index printer, daisy wheel printer, ink-jet printer or the like, equally also can adopt this design.
It sees also Fig. 2 a (using same label), has a bankbook 127 that is parallel to the ridge of sending axis 172 to and be sent to, so can be uneven with thickness on the direction of sending axis normal to member identical among Fig. 1.If other print object thing, for example passport, plane ticket or the like, too.Be noted that under any circumstance feeder of the present invention can be used for the print object thing of any kind, even a uniform object of very thin thickness (for example a piece of paper).
Feeder 154 is made of an axle 205, and this root axle is being the major axis shape on perpendicular to the longitudinal axis 210 of sending axis 172 to, and its two ends are installed on the framework of printer by means of suitable bearing (not shown).Axle 205 has common rectangular cross section, and its less side surface protrudes slightly.
On axle 205, fixing many friction roller 220a-220e (being five in the present embodiment).Friction roller 220a (explanation of other friction rollers 220b-220e too) is made up of a discoid object 225 of central authorities, and this disk 225 is made with rubber usually, and has coarse surface.There is a wheel hub 230 in central authorities at disk 225, and this wheel hub is made up of less than the hollow cylinder of the diameter of disk 225 external diameter.The length of wheel hub 230 is greater than the width of disk 225, and protrudes from the left and right sides of disk 225 with equal lengths.In wheel hub 230 inside, along a dividing plate is arranged on the middle position of its length, have on the dividing plate one with axle 205 a shapes identical through hole 235.The size of through hole 235 is a bit larger tham axle 205, is connected on the axle 205 so roller 220a is a loosely.
Gear train 239 of axle 205 and 236 usefulness is connected on the drive motors (not shown).When motor drive gear was 239, axle 205 and 236 just rotated around corresponding longitudinal axis 210 and 237 separately, and drove friction roller 220a-220e and 238a-238e rotation respectively.
Perhaps, the corresponding roller of these two feeders leaves some distances a little, and the friction roller (perhaps even have only a friction roller) of varying number is set, and the middle body of each root roller has the structure of band spoke, above-mentioned these rollers are installed on the axle in another way, or the like.
In according to feeder of the present invention, axle 205 can carry out elasticity of flexure distortion, so, under operating condition, when bankbook 127 inserts between feeder 154a and the 154b, the axle 205 just bendings along with the thickness of bankbook 127 are shown in the front view among Fig. 2 b (the member of representing in Fig. 2 a all adopts same label).But, because axle 236 is rigidity (that is, having insignificant distortion under described situation), so when bankbook 127 inserted between feeding unit 154a and the 154b, it remained straight.If axle 236 can carry out strain, and axle 205 is rigidity, and perhaps, the axle of two feeding unit 154a and 154b can both strain, and situation is also identical.
In this structure, when bankbook 127 inserts between feeding unit 154a and the 154b, the friction roller 220a-220e distance suitable that just moves up with the thickness of bankbook 127.The distortion of axle 205 produces an elastic force, and this elastic force forces friction roller 220a-220e to press to bankbook 127, guarantees can both push down bankbook well on each point.
Technical scheme of the present invention is also very reliable, simple, and can produce in a large number with cheap cost.
See also Fig. 2 a again, in a preferred embodiment of the invention, each friction roller 220a-220e uses one, for example flat spring 240a-240e and its collaborative work made from spring steel.Above-mentioned spring 240a (for other springs 240b-240e too) has a reclinate slightly rear end 245.Two through holes that are arranged on the rear end 245 are used for spring 240a is riveted on top slide plate 151b.The front end of spring 240a is fork shape (for example forming with method for die cutting), has a left arm 250a and a right arm 250b.The free end of arm 250a, 250b bends to semicircle (bottom opening), and is pressed over the two ends of the wheel hub 230 that protrudes from disk 225.
When bankbook 127 inserts between feeding unit 154a, the 154b, each spring 240a-240e is just pressed to feeding unit 154a to the friction roller 220a-220e of collaborative work with bigger elastic force, so just guaranteed better friction roller 220a-220e to be pressed on the bankbook 127, can utilize flexible axle better in other words, make it attach (for the given pressure that acts on by friction roller 220a-220e on the bankbook 127) with the thickness of bankbook 127 better.If above-mentioned flat spring has different structures, perhaps use other elastic devices that is equal to, situation is also identical.Under any circumstance, feeding unit of the present invention can not have this spring yet.
Above-described each flat spring 240a-240e makes that also the friction roller 220a-220e that loosely is installed in the collaborative work on the axle 205 keeps its axial location (with respect to the upper slider 151b that is fixed on the printer frame).Be preferably on the axle 205, between two adjacent friction rollers, for example between roller 220c and 220d, form two shoulder 255a and 255b.Each shoulder 255a, 255b push down the dividing plate of the wheel hub inside of roller 220c and 220d respectively.So just kept axle 205 axial locations, prevented moving of axle 205 with respect to roller 220c and 220d (these rollers are fixed on the slide plate 151b of top by means of spring 240c and 240d respectively).
In structure described above, when bankbook 127 inserts between feeding unit 154a and the 154b, usually the strain of axle 205 and spring 240a-240e is uneven along axle 205 length directions on the whole, but distortion in the central big (particularly when the object of printing be under the very narrow situation with respect to sending axis 172 to).In a particularly advantageous embodiment of the present invention, the coefficient of elasticity (rigidity) of the spring 240a of outer end and 240e (being arranged on the two ends of axle 205) is greater than the contained spring 240b-240d that is arranged between these two outer end spring 240a and the 240e.Specifically, the spring 240a of above-mentioned outer end and 240e make with two overlapping metallic plates, and inner spring 240b-240d then makes with an independent metallic plate.Therefore, the elastic force that is applied on each friction roller 220a-220e by axle 205 and spring 240a-240e is uneven basically along axle 205, and this has just guaranteed the best running state of feeder 154a, 154b.
If two or near more be arranged on the two ends spring have the coefficient of elasticity bigger than other springs, if outside spring is to use the metallic plate thicker than contained spring to make, or the like, its situation is also identical so.But under any circumstance, feeder of the present invention also can use same spring (also can use along the section of longitudinal axis axle inequality) to all rollers.
Certainly; in order to satisfy accidental and special needs; those skilled in the art can carry out various improvement and variation to feeder described above, yet all this improvement and variation all should be included in the application's the determined protection domain of claims.
Claims (10)
1. one kind is used for perpendicular to the roller feeder (154a, 154b) of sending print object thing (127) in uneven thickness on axis (172) direction to, it comprises one first feeding unit (154a) and one second feeding unit of being arranged to basically relative to each other (154b), and each feeding unit (154a, 154b) all has one perpendicular to the axle (205 of sending axis (172) to; 236), so as with driving shaft (205; 236) drive motors of rotation connects, and at least one is installed in axle (205; 236) friction roller (220a-220e on; 238a-238e), so that by axle (205; 236) drive rotation, under the operating condition between print object thing (127) insertion above-mentioned first feeding unit (154a) and second feeding unit (154b), above-mentioned friction roller (220a-220e; 238a-238e) act on the above-mentioned print object thing (127), it is characterized in that:
The axle (205) of at least one assembly (154b) in above-mentioned first and second feeding units (154a, 154b) can carry out elasticity of flexure distortion, so that the thickness according to above-mentioned print object thing (127) carries out bending under above-mentioned operating condition.
2. feeder as claimed in claim 1 (154a, 154b) is characterized in that, the axle (205) of above-mentioned at least one feeding unit (154b) has a deflection value between 1mm/N and 50mm/N on the mid point of longitudinal axis (210).
3. feeder as claimed in claim 2 (154a, 154b) is characterized in that, above-mentioned axle (205) is made with a kind of polyamide.
4. as any one described feeder (154a, 154b) among the claim 1-3, it is characterized in that above-mentioned at least one feeder (154b) also comprises the elastic device (240a-240e) that is used for above-mentioned at least one roller (220a-220e) pressed to another feeding unit (154a).
5. feeder (154a as claimed in claim 4,154b), it is characterized in that, above-mentioned at least one feeding unit is made up of many rollers (220a-220e), each roller (220a) comprises a disk (225) that has central hub (230), this wheel hub has respectively first end and the second end that protrudes from first end and second end of above-mentioned disk (225), and, above-mentioned elastic device comprises many flat springs (240a-240e), each spring and corresponding roller (220a-220e) collaborative work, and its end is a fork (250a, 250b), this fork has first end and the first arm (250a) on second end and one second arm (250b) that is pressed over above-mentioned wheel hub (230) respectively.
6. feeder as claimed in claim 5 (154a, 154b), it is characterized in that, above-mentioned axle (205) has non-circular cross section, and, above-mentioned each roller (220a) has a center through hole (235) that matches with above-mentioned axle (205), so that roller (220a) is connected on the axle (205) loosely, above-mentioned roller (220a) remains on axial location with respect to the framework (103) of printer (100) with above-mentioned corresponding spring (240a).
7. feeder as claimed in claim 6 (154a, 154b), it is characterized in that, above-mentioned axle (205) has one first shoulder (255a) and one second shoulder (255b) that is arranged between two adjacent roller (220c, 220d), so that make spool (205) remain on axial location with respect to roller (220a-220e).
8. as any one described feeder (154a, 154b) among the claim 5-7, it is characterized in that near the above-mentioned coefficient of elasticity of the external springs (240a, 240e) in axle (205) two ends that is arranged on is greater than the coefficient of elasticity that is arranged on the contained spring (240b-240d) between these two external springs (240a, 240e).
9. feeder as claimed in claim 8 (154a, 154b) is characterized in that, above-mentioned contained spring (240b-240d) comprises an independent metallic plate, and said external spring (240a, 240e) comprises two overlapping metallic plates.
10. a printer (100) is characterized in that, it comprises that at least one is as any one described feeder (154a, 154b) among the claim 1-9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98830705.4 | 1998-11-24 | ||
| EP19980830705 EP1004529B1 (en) | 1998-11-24 | 1998-11-24 | A roller feed device for a print substrate of non-uniform thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1254651A true CN1254651A (en) | 2000-05-31 |
Family
ID=8236897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99123979 Pending CN1254651A (en) | 1998-11-24 | 1999-11-22 | Roller feeder for printed object with non-uniform thickness |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1004529B1 (en) |
| CN (1) | CN1254651A (en) |
| DE (1) | DE69813831T2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050140078A1 (en) * | 2002-03-15 | 2005-06-30 | Hitoshi Fujiwara | Sheet feeder and printer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60154087A (en) * | 1984-01-24 | 1985-08-13 | Canon Electronics Inc | Sheet material feeding apparatus |
| FR2617764A1 (en) * | 1987-07-06 | 1989-01-13 | Sagem | PRINTER MACHINE ARRANGED FOR REDUCTION OF ITS SOUND OPERATING LEVEL |
| US4974680A (en) * | 1988-11-14 | 1990-12-04 | Tokyo Electric Co., Ltd. | Sheet-feeding mechanism |
| JP2763387B2 (en) * | 1990-07-20 | 1998-06-11 | キヤノン株式会社 | Sheet transport device and printer having the sheet transport device |
| JP2694839B2 (en) * | 1993-07-20 | 1997-12-24 | インターナショナル・ビジネス・マシーンズ・コーポレイション | Paper transport roller |
-
1998
- 1998-11-24 EP EP19980830705 patent/EP1004529B1/en not_active Expired - Lifetime
- 1998-11-24 DE DE1998613831 patent/DE69813831T2/en not_active Expired - Lifetime
-
1999
- 1999-11-22 CN CN 99123979 patent/CN1254651A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE69813831T2 (en) | 2004-02-26 |
| EP1004529A1 (en) | 2000-05-31 |
| EP1004529B1 (en) | 2003-04-23 |
| DE69813831D1 (en) | 2003-05-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |