EP0442903A1 - Powdering device for printed articles. - Google Patents
Powdering device for printed articles.Info
- Publication number
- EP0442903A1 EP0442903A1 EP89911806A EP89911806A EP0442903A1 EP 0442903 A1 EP0442903 A1 EP 0442903A1 EP 89911806 A EP89911806 A EP 89911806A EP 89911806 A EP89911806 A EP 89911806A EP 0442903 A1 EP0442903 A1 EP 0442903A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- bodies
- distance
- nozzle bodies
- 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.)
- Granted
Links
- 238000000227 grinding Methods 0.000 title description 3
- 239000000843 powder Substances 0.000 claims abstract description 29
- 238000010410 dusting Methods 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 239000011295 pitch Substances 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 2
- 241000549194 Euonymus europaeus Species 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract 1
- 238000011161 development Methods 0.000 description 12
- 230000018109 developmental process Effects 0.000 description 12
- 239000003595 mist Substances 0.000 description 11
- 230000010152 pollination Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 229920002261 Corn starch Polymers 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000008120 corn starch Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000001520 comb Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 101150073877 egg-1 gene Proteins 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000008672 reprogramming Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/06—Powdering devices, e.g. for preventing set-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/68—Arrangements for adjusting the position of spray heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1481—Spray pistols or apparatus for discharging particulate material
- B05B7/1486—Spray pistols or apparatus for discharging particulate material for spraying particulate material in dry state
Definitions
- the invention relates to a device for. Dusting of printed products with fine powder according to the preamble of claim 1.
- Such advises are installed over the conveying path of the printed products on printing presses and dust the printed side of the freshly printed product with fine powder, so that the printed products do not stick together over the layers of color when they are laid one on top of the other.
- the fine powder particles of corn starch, CaCo 3 or sugar have a particle size of usually between 10 and 50 ⁇ and are atomized in an air stream.
- This mist is directed against the printed products via generally strip-shaped nozzle bodies, the axis of the ledge bodies running parallel to the conveying direction of the printed products and a plurality of such nozzle bodies being arranged parallel to one another above the conveying path of the printed products.
- the total of the mist curtain produced by the nozzle body arrangement must be so wide that it still completely covers the widest printed products. Become smaller
- Printed products are printed, so you either have to accept that the part of the powder curtain that is outside of the printed products is uselessly generated and enters machine parts located below the conveying path of the printed products. This is disadvantageous both with regard to the contamination of the machine and with regard to the cost of the powder material, on the other hand, if the nozzle body arrangement is changed so that the width of the powder curtain corresponds to the width of the printed products, this means a longer stop of the printing press, which only at very high Conditions is economically justifiable.
- the present invention is therefore intended to provide a consultant for dusting printed matter with fine powder according to the preamble of claim 1, in which the width of the powder curtain produced by the nozzle body arrangement can be changed at short notice and without complex adjustment work.
- This object is achieved according to the invention by a pollination device according to claim 1.
- Adjustment of the individual nozzle bodies is obtained since it is sufficient to apply a predetermined relative movement to two arbitrarily selected, distant points of the parallelogram scissors linkage in order to obtain the desired synchronous adjustment movements of the nozzle bodies.
- a pollination device In a pollination device according to claim 7, there is a finely adjustable lateral adjustment of the nozzle body in conjunction with a very simple mechanical construction of the switching couplings which control the adjustment movement of the individual nozzle bodies.
- a mechanically strictly coupled adjustment of the individual nozzle bodies is obtained in a mechanically particularly simple manner.
- the development of the invention according to claim 14 is then characterized by a particularly compact and mechanically simplified construction.
- the development of the invention according to claim 17 is advantageous in terms of a safe and tilt-free adjustment len long nozzle body.
- long strip-shaped nozzle bodies can also be placed at an angle to the conveying direction of the printed products.
- Each of the nozzle bodies then sweeps over a transverse area of the printed products, which corresponds to the opening angle of the partial curtain produced by it plus the transverse offset of its ends. This makes it possible to work with nozzle bodies which produce a mist cone that is not too large. Such greatly expanded fog cones inevitably lead to the loss of a larger fraction of the powder material.
- the width of the powder mist generated by the individual nozzle bodies is automatically adjusted to the respective spacing of the nozzle bodies. This change in the beam width synchronous with the distance adjustment is obtained in a simple mechanical manner.
- Figure 1 is a plan view of the front of a powder dusting device, in which some parts have broken away;
- Figure 2 is a plan view of the powdering device according to
- FIGS. 3 and 4 views similar to FIGS. 1 and 2 of a modified powder dusting device
- Figure 5 a view similar to Figure 1 another
- FIG. 6 a vertical section through a guide /
- FIG. 7 a section of a modified nozzle strip arrangement with a width of the powder mist emitted by the strips which automatically changes according to the strip spacing;
- FIGS. 8 and 9 views similar to FIGS. 5 and 6 of a modified powder dusting device;
- Figure 10 an end view of a further modified
- FIGS. 11 to 13 top views of further embodiments of a powder dusting device
- the powder dusting device shown in Figures 1 and 2 has two substantially U-shaped bearing frames 10, 12, each having a mounting plate 14 and side bearing legs 16, 18.
- holes 20 are provided, in which mounting screws can be accommodated, which serve to attach the bearing frame 10, 12 to horizontal struts of a printing press or to attach the bearing frame 10, 12 to a support plate, not shown in the drawing, which then in turn is attached to a printing press.
- a square guide rail 22 is fixed in the lower section in the bearing legs 16, 18. Parallel to the guide rail 22, a threaded spindle 26 is supported in the bearing legs 16, IS using axial / radial bearings 24. This has a square drive section 23 which is mechanically coupled to an electric motor 30.
- the left ends of the threaded spindles 26 carry chain wheels 32, over which a chain 34 runs.
- the threaded spindle 26 of the rear bearing frame 12 which is not connected to a motor, is coupled to the driven threaded spindle 26 of the front bearing frame 10.
- a plurality of guide heads 36 can be displaced in the sliding play on the guide rail 22.
- the guide heads 36 each have on the underside a T-shaped cross section running perpendicular to the drawing plane of FIG. 1 and having a complementary cross section with a rotationally symmetrical holding pin 40 which is displaceable and rotatable and which follows from the top of an assigned nozzle strip, generally designated 42 is at the top.
- the nozzle strips 42 each have an internal distributor channel 44 which runs in the longitudinal direction of the strip and which, via a plurality of dispensing nozzles pointing downward, emits a powder mist against printed products which pass under the nozzle strip arrangement.
- the guide heads 36 have in their upper section a threaded bore 48 into which a locking screw 50 can be screwed, the tip of which works into the top of the guide rail 22.
- a locking screw 50 is equipped with a locking screw 50; in the embodiment shown in FIG. 1, this is the middle guide head.
- This selected guide head serves as a point of focal point when the nozzle bar 42 is displaced in the transverse direction.
- a parallelogram scissor grille designated as a whole, which has grating arms 54, 56 laid crosswise.
- the lattice links 54, 56 are each articulated to one of the guide heads 36 at the crossover point by means of a pivot pin 58.
- the free ends of the lattice links 54, 56 are connected by pivot pins 60, 62.
- Locking screw 50 differentiates braked guide head 36, in the exemplary embodiment shown in FIG. 1 the leftmost of the guide heads 36 carries a drive head 64 which is provided with a threaded bore 66 which runs on the threaded spindle 26. By rotating the threaded spindle 26 in one or the other direction of rotation, the distance between the nozzle strips 42 can thus be increased or decreased, the adjustment movement taking place symmetrically to the braked central guide head and thus also the central nozzle strip. If, instead of the middle guide head, the guide head located on the far right in FIG. 1 were to be braked, one would receive an otherwise unchanged design of the powder dusting device shown in FIGS at the right end of the guide rail 22 in FIG. 1.
- the distributor channels 44 of the various nozzle strips 42 are connected to a mist generator (not shown in more detail) via flexible hoses 68.
- the powder mist is obtained by atomizing fine particles of 10 to 50 ⁇ , preferably 15 to 20 ⁇ , from corn starch, CaCO 3 or sugar in a stream of compressed air.
- the pudei dusting device shown in FIGS. 1 and 2 can be adjusted simply by exciting the electric motor 30 in one or the other sense of rotation for the dusting of printed products of different widths.
- the printed products of different widths can either be fed to the center of the printing machine (central guide head braked) or so the one side edges run equally on one side of the printing machine (edge guide head braked).
- FIGS. 3 and 4 parts which have already been described above are again provided with the same reference symbols.
- the threaded spindle 26 now has two spindle sections 26a and 26b provided with opposite threads, which work together with two drive heads 64 which are placed on the two peripheral guide heads 36.
- peripheral guide heads are thus inevitably moved symmetrically to the center plane of the powdering device.
- helical springs 70 are now provided, which are each inserted between adjacent guide heads 36 arranged on the guide rail 22 with slight sliding play.
- the coupling chain 34 provided in the exemplary embodiment according to FIGS. 1 and 2 is also omitted.
- the drive sections 28 of both threaded spindles 26 are each connected to an associated electric motor 30 or 30 ', so that the distance between the guide heads and nozzle strips for the front and rear bearing frames can be set differently. It is also possible to achieve an inclined position of the nozzle strips 42 with respect to the conveying direction of the printed products (from top to bottom in FIG. 4), as is shown in FIG. 4.
- Each of the nozzle strips 42 can thus sweep over a transversal area of the printed products which is larger than the cone opening angle of the corresponds to fog generated by the individual nozzle strip 42.
- each of the guide heads 36 is assigned its own drive head 64 which runs on the threaded spindle 26.
- the drive heads 64 contain specially designed clutches, by means of which they can optionally be connected to the threaded spindle 26 in a drive-locking manner or can be separated therefrom.
- These shifting clutches which will be described in more detail with reference to FIG. 6, are controlled via control lines 72 using a computer 74, which is equipped with a keypad 76, a monitor 78 and also the conveying path
- the width of the powder mist generated overall by the nozzle bar arrangement can thus either be set automatically according to the width of the printed products measured by the multiple light barrier 80 or selected according to the values set on the keypad 76.
- a two-armed lever 82 is rotatably mounted in the drive heads 64 about a horizontal pin 83.
- Whose lever arm 84 carries at one end a nut segment 86 which can run on the threaded spindle 26.
- a second lever arm 88 of the lever 82 carries a brake body 90 which cooperates with one side surface of the guide rail 22.
- an anchor plate 92 is also attached, which with an elec Tromagneten 94 cooperates, which is attached to the housing of the drive head 64 designated 96.
- a helical compression spring 98 is clamped between the armature plate 92 and the end face of the electromagnet 94, by means of which the lever 82 is biased into the position shown in FIG. 6, in which the brake body 90 rests on the guide rail 22 and the nut segment 86 is disengaged from the threaded spindle 26 is.
- the electromagnet 94 is excited, on the other hand, the brake body 90 is lifted off the guide rail 22 and the nut segment 86 is placed on the threaded spindle 26.
- Drive head 64 and the guide head 36 connected to it, as well as the nozzle bar 42 carried by it, are adjusted in accordance with the rotation of the threaded spindle 26.
- the computer 74 operates in such a way that it
- Electric motor 30 is excited as long as an adjustment movement of drive heads 64 is required at all.
- the electromagnets 94 of the various drive heads 64 are, however, only energized over part of this time period, as is necessary for the differently wide adjustment of the drive heads 64. It can be seen that by appropriately programming the computer 74, a forced adjustment of the nozzle strips 42 which is inevitably uniform to the center plane of the powder dusting device can be accomplished in the same way as an asymmetrical or non-uniform adjustment of the various nozzle strips in a predetermined manner.
- the delivery characteristic of the nozzle strips is changed synchronously, that is to say the opening angle of the Mist cone enlarged with increasing distance between the nozzle bars, reduced with decreasing nozzle bar distance.
- FIG. 7 shows a mechanical solution for this forced change in the jet characteristic in synchronism with the spacing of the nozzle strips.
- the nozzle strips each have side channel walls 102, 104 articulated via joints 100, which delimit a variable nozzle opening 106.
- the lower ends of the channel walls 102, 104 of adjacent nozzle strips 42 are each connected by horizontal coupling plates 108, to be precise via joints 110. It can be seen directly from FIG. 7 that the width of the
- Nozzle opening 106 is automatically enlarged when the drive heads 64 are moved apart, automatically reduced when the drive heads 64 are brought closer together.
- the coupling plates 108 together with the channel walls 102, 104 form a variable cover of the powder-filled space upwards.
- the threaded spindle 26 is now held non-rotatably by the bearing legs 16, 18, and the drive heads 64 each contain an independently controllable drive motor 112, which is controlled by the computer 74 in one or the other
- the drive motor 112 is in each case fastened to the housing 96 and its shaft carries a helical toothed gear 114 which is connected to an ent speaking combs helically toothed ring gear 116 which is applied to the outside of a threaded sleeve 118.
- the threaded sleeve 118 has a bearing collar 120 which is axially distant from the ring gear 116 and is mounted in a side wall of the housing 96 via an axial / radial bearing 122.
- the threaded sleeve 118 runs on the threaded spindle 26, and by exciting the drive motor 112 in one or the other direction of rotation, the drive head 64 under consideration can thus be moved to the left or right on the threaded spindle 26.
- the computer 74 takes care of the coordination of the movement of the different drive heads 64.
- the same adjusting device is provided for the second ends of the nozzle bodies 42 as is shown in FIGS. 8 and 9.
- the control of the drive heads 64 is also carried out by the computer 74, the drive control 64 lying one behind the other in the conveying direction of the printed sheets normally being acted upon by the same control signals.
- Two threaded spindles 26 and 26 are now rotatably arranged in the bearing legs 16, 18. There are four threads 124a, 124b, 124c and 124d of different pitch on these threaded spindles: the thread
- thread 124b has twice the pitch as the thread 124a; thread 124c has three times the pitch of thread 124a and thread 124d has four times the pitch of thread 124a.
- the threads 124 overlap for a short distance, and for this reason they are on the two threaded spindles 26 'and
- the threaded spindles 26 'and 26' are inevitably coupled by a chain drive 126, so they run at the same speed.
- the drive heads 64 for the different nozzle strips work with four different threaded spindles 26 1 , 26 2 , 26 3 and
- the threaded spindle 26 2 runs twice as fast as the threaded spindle 26 1 , the threaded spindles
- stepper motors 130 1 work on the threaded spindles
- the stepper motor 130 4 receives its
- the frequency divider 132 4 thus allows every third of the pulses provided by the pulse generator 134 to pass through.
- the stepper motors 130 3 , 130 2 and 130 1 are correspondingly over
- Frequency dividers 132 3 , 132 2 and 132 1 are acted upon by the control pulses of the pulse generator 134, the partial ratio of which is "4", "6" and "12".
- the pulse generator 134 itself is a controllable pulse generator and receives a signal from the computer 74 via a line 136, which signal specifies the number of pulses to be emitted by the pulse generator 134. This can be done, for example, by transferring a binary-coded number, one in the pulse generator
- the pulse generator each after receiving such a Za begins to generate pulses that simultaneously on a down counting terminal
- a single electric motor 30 can again be used to drive a threaded spindle 26.
- Gearboxes 138 2 , 138 3 and 138 4 provide speed translation by a factor of "2", “3" and "4".
- the gears 138 can be gear transmissions, belt transmissions or chain transmissions.
- the exemplary embodiment according to FIG. 12 is very similar to that according to FIG. 11, only the stepper motors 130 i work on
- Bearing leg 18 running driven deflection wheels 140 i , which are arranged together with free running in the bearing leg 16
- Deflection wheels 142 i and belts 144 i running over these wheels form a belt drive working on an associated drive head 64.
- the drive heads 64 i are assigned hydraulic actuating cylinders 146 i , which are supplied with pressure medium via flow dividers 148 and a control valve 150.
- the flow dividers 148 ensure that the piston rods of the adjusting cylinders 148 1-148 4 again in the ratio 1: scroll 4: 2: 3. To be able to use the same actuating cylinders uniformly, see below
- clamping pieces 152 in the vicinity of the associated drive head 64 is fixed on the associated guide rail 22, the actuating cylinders lying on the two sides of the device centering in opposite directions, which is compensated for by swapping their working lines 154 and 156 accordingly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
- Spray Control Apparatus (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Un appareil de pulvérisation pour saupoudrer des articles imprimés avec une fine poudre comporte une pluralité de buses (42) parallèles juxtaposées qui produisent le nuage de poudre. La distance entre les buses (42) se règle à l'aide d'un mouvement fileté (26, 66) et d'un grillage à ciseaux quadrilatéral (52).A spraying apparatus for dusting articles printed with a fine powder has a plurality of juxtaposed parallel nozzles (42) which produce the powder cloud. The distance between the nozzles (42) is adjusted by means of a threaded movement (26, 66) and a quadrilateral scissor grid (52).
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89911806T ATE85003T1 (en) | 1988-11-11 | 1989-10-17 | DEVICE FOR DUSTING PRINTED PRODUCTS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8814129U DE8814129U1 (en) | 1988-11-11 | 1988-11-11 | Device for dusting printed products |
DE8814129U | 1988-11-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0442903A1 true EP0442903A1 (en) | 1991-08-28 |
EP0442903B1 EP0442903B1 (en) | 1993-01-27 |
Family
ID=6829772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89911806A Expired - Lifetime EP0442903B1 (en) | 1988-11-11 | 1989-10-17 | Powdering device for printed articles |
Country Status (5)
Country | Link |
---|---|
US (1) | US5163370A (en) |
EP (1) | EP0442903B1 (en) |
JP (1) | JP2892729B2 (en) |
DE (2) | DE8814129U1 (en) |
WO (1) | WO1990005064A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5094398A (en) * | 1990-09-13 | 1992-03-10 | Nordson Corporation | Quick-adjusting, multiple dispenser positioner |
DE4237111B4 (en) * | 1992-11-04 | 2006-03-09 | Platsch, Hans G., Dipl.-Ing. | dusting device |
DE19501346A1 (en) * | 1995-01-18 | 1996-07-25 | Hans Georg Platsch | Device for measuring the surface of a printed product |
DE19600075A1 (en) * | 1996-01-03 | 1997-07-10 | Hans Georg Platsch | Device for powdering printed matter |
DE19836018A1 (en) | 1998-08-10 | 2000-02-17 | Weitmann & Konrad Fa | Arrangement for applying powder to printed sheets |
DE20020564U1 (en) * | 2000-12-05 | 2001-05-03 | Nordson Corp Westlake | Device for dispensing fluids, in particular flowable adhesive |
DE102007046651A1 (en) * | 2007-09-28 | 2009-04-02 | Heidelberger Druckmaschinen Ag | powder device |
JP5863408B2 (en) | 2011-11-14 | 2016-02-16 | 東芝機械株式会社 | Painting robot system and spray gun unit |
DE102013205471A1 (en) * | 2013-03-27 | 2014-10-02 | Weitmann & Konrad Gmbh & Co Kg | Device for the distributed application of powder to moving printed products |
DE102015014715A1 (en) * | 2015-11-17 | 2017-05-18 | Eltosch Grafix GmbH | Apparatus and method for powdering printed sheets |
MX2019014165A (en) * | 2018-11-28 | 2020-08-03 | Prec Valve And Automation Inc | Multiple fourth axis robot. |
CN115364607A (en) * | 2022-09-14 | 2022-11-22 | 河南北筑沥青发泡科技有限公司 | Spraying dust removal system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2110218A (en) * | 1935-11-27 | 1938-03-08 | Binks Mfg Co | Offset preventing in printing |
US2110052A (en) * | 1936-06-08 | 1938-03-01 | Jens A Paasche | Spray treating apparatus |
US3333570A (en) * | 1964-10-09 | 1967-08-01 | Jens A Paasche | Anti-ink offset powder assembly |
DE2519831A1 (en) * | 1975-05-03 | 1976-11-11 | Platsch Zerstaeubung Albin | DEVICE FOR POWDER INJECTION |
DE2637875B2 (en) * | 1976-08-23 | 1979-11-15 | Albin Platsch Zerstaeubungstechnik, 7000 Stuttgart | Device for regulating the amount of powder when dusting freshly printed sheets |
US4622896A (en) * | 1985-04-01 | 1986-11-18 | Wizer Equipment, Inc. | Powder spray gun |
US4867063A (en) * | 1986-11-25 | 1989-09-19 | Gerald Baker | Method and apparatus for dispensing powder in a printing press |
-
1988
- 1988-11-11 DE DE8814129U patent/DE8814129U1/en not_active Expired - Lifetime
-
1989
- 1989-10-17 WO PCT/EP1989/001233 patent/WO1990005064A1/en active IP Right Grant
- 1989-10-17 US US07/659,327 patent/US5163370A/en not_active Expired - Lifetime
- 1989-10-17 JP JP1510995A patent/JP2892729B2/en not_active Expired - Fee Related
- 1989-10-17 DE DE8989911806T patent/DE58903420D1/en not_active Expired - Lifetime
- 1989-10-17 EP EP89911806A patent/EP0442903B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9005064A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE8814129U1 (en) | 1990-03-15 |
JP2892729B2 (en) | 1999-05-17 |
DE58903420D1 (en) | 1993-03-11 |
US5163370A (en) | 1992-11-17 |
WO1990005064A1 (en) | 1990-05-17 |
EP0442903B1 (en) | 1993-01-27 |
JPH04501388A (en) | 1992-03-12 |
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