WO2000035586A1 - Broyeur - Google Patents
Broyeur Download PDFInfo
- Publication number
- WO2000035586A1 WO2000035586A1 PCT/IB1999/001945 IB9901945W WO0035586A1 WO 2000035586 A1 WO2000035586 A1 WO 2000035586A1 IB 9901945 W IB9901945 W IB 9901945W WO 0035586 A1 WO0035586 A1 WO 0035586A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blades
- teeth
- toothed
- crusher according
- pair
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0056—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for
- B02C19/0075—Other disintegrating devices or methods specially adapted for specific materials not otherwise provided for specially adapted for disintegrating medical waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/02—Disintegrating by knives or other cutting or tearing members which chop material into fragments with reciprocating knives
Definitions
- the invention relates to a crusher or crusher for bulk material, in a heterogeneous mixture, making it possible to reduce this material into small particles in order to reduce its volume as much as possible. Its operation calls for a system of toothed blades in linear relative movements, simultaneously combining shearing functions with crushing functions. If the material in question is essentially organic and non-infectious, the ground material obtained can be used as compost, while otherwise it can be landfilled directly. Their sorting or other treatments such as decontamination or sterilization will be facilitated.
- the larger shredders generally operate using rotating blades which generate a noise which requires protection to keep close to it Remains also the problem of shredding of fabrics and meat waste
- the shredders or crushers used in quarries, in addition to the enormous noise that they also generate, are too large, consume a lot of energy, and produce excess fines and dust
- the invention solves the problems mentioned above, namely obtaining a product in particles which can be easily handled, further processed if necessary, transported and stored.
- the grinder according to the invention makes it possible to reduce heterogeneous materials, organic as well as mineral or mixed, to particles, it is small, silent and consumes little energy, being satisfied with a conventional electrical connection, as can be found. in a simple house We will also see that it is self-cleaning and that its very design allows very easy maintenance
- the orthogonal planes are vertical and horizontal planes
- the crusher comprises at least two successive pairs of movable toothed blades making jaws each couple consisting of two corresponding toothed blades opposite, animated back and forth in movement and approach to come into abutment against one another when the teeth are engaged in each other, the second pair of blades sliding against the first pair of blades and coming into abutment in a position offset from the position of first stop couple of toothed blades.
- the blades advantageously have a curved profile, for example in the form of an S, to avoid that the long and thin parts cannot exceed the blades without being cut.
- the blades constituting the pairs of blades are in a vertical position and have serrations having horizontal surfaces oriented upwards, respectively downwards, so that the shearing effects are vertical, respectively horizontal.
- the blades are extended upwards by upper zones, also toothed, but which do not come to engage one another and instead adopt a geometrical V-shaped positioning when the toothed blades are in abutment against each other in the crushing zone.
- the crusher comprises in the lower part a cutout leaving a free space in which the teeth do not come into abutment.
- the grinder includes another cut which cooperates with a nose or beak projecting in correspondence on the opposite blade
- the shape of the blades and their thickness, as well as the material used, will be chosen according to the products to be ground and the size of the ground material desired, as will be specified below.
- the toothed blades constituting the pairs are advantageously arranged obliquely.
- the pairs of blades can be animated with respect to each other by a synchronous movement or an asynchronous movement, and between the blades mobile can be inserted fixed blades or having a different stroke.
- the blades can approach and move away according to a linear race located along a merged axis, in the same plane, or according to two planes making between them an obtuse angle different from 180 °, up to 120 ° for example.
- the convergence movement is then oblique, preferably downward to further accentuate the phenomenon of self-feeding of waste.
- this back-and-forth movement whatever the plan or plans, can also be curvilinear or arched, preferably there also oriented downward in approach.
- Such a result is easily obtained by shifting the axis of attachment of the blades relative to the point where the reciprocating movement proper is applied to them. This generates a rocking movement, downwards if the blade attachment point is below.
- Such a crusher can be presented in a modular form, pairs of toothed blades which can be added to the side of existing blades to increase the grinding capacity, or removed to reduce their capacity, weight and size. .
- This is obviously a big advantage compared to traditional grinders, especially compared to screw grinders, by nature fixed in their dimensions and capacities.
- the crusher also includes mechanical parts necessary for its operation, that is to say one or more motors powered electrically or pneumatically or hydraulically, the frames or supports required, the feed hoppers and the output and recovery bodies of the shredded products.
- the blades are made of a material strong enough to cut and crush, while keeping a residual elasticity to take into account the shear forces.
- the material chosen for the blades or their coating, as well as the shape and design of the teeth and mechanical interfaces depends on the applications chosen. Mention will be made of steel, carbides or nitrides, certain ceramics obtained by sintering in particular, in solid or in plating. It should be understood here that when we speak of "stop”, this does not necessarily mean that the teeth come into direct contact face to face; the stop movement can leave a slight space between these two blades, which is precisely of the order of magnitude of the dimensions of the particles of ground material obtained. In addition, to allow mechanical tolerance, the teeth in the stop zone may have a slight cut at the end or chamfer.
- the mill according to the invention requires at least a couple of blades to operate, it is obvious that, in practice, the number of blades will be much higher, typically from a few tens to a few hundred, without this number being necessarily peer. Everything will obviously depend on the required grinding capacity and the constraints on the general dimensions.
- the width of the blades also depends on the dimensions of the ground material, as well as the maximum dimensions of the materials to be ground, the number of blades placed side by side defining the maximum length of the material accepted.
- FIG. 1 is a side view of the pair of cooperating blades, driven in a back and forth movement towards and away;
- FIG. 2a is a view of a pair of identical blades, shown in perspective, but the upper part of which has a funnel shape;
- Figure 2b is a perspective view corresponding to Figure 2a, in which several pairs of blades are arranged side by side;
- FIG. 3 is a top view of the block diagram explaining the interpenetration of the blades and the shearing effects.
- Figure 4 is a view similar to that of Figure 1 and relates to another embodiment.
- the pair of blades includes a blade 1 or “male” blade, and a blade 2 or “female” blade cooperating with the blade 1.
- Each of these blades comprises holes 3, 4 respectively serving to fix them to support shafts and motors not shown, respectively 5, 6 whose purpose is above all to lighten the whole.
- the male blade 1 comprises an upper entry zone 7 which will be used to compact, pre-crush, possibly pre-grind and pre-tear, the material brought into this zone, and a lower zone 8, where the crushing will take place. and final grinding.
- the female blade 2 also comprises an upper zone 9 and a lower grinding zone 10, the teeth of which interpenetrate and cooperate with the teeth of zone 8.
- the two upper zones 7, 9 of the blades together form a V-shaped hopper, the role will be to advance down the material taken in this hopper.
- the male blade 1 projects, while the corresponding part of the female blade 2 has an S shape, in order to define a passage for the ground material and to prevent pieces from passing through the blades without being treated.
- teeth are identified by the reference numerals 11,12 on each of the two male blades 1 and female 2 respectively.
- the blades 11 In their upper zones 7, 9, the blades 11 have teeth which have a horizontal face 13 facing upwards. Since the other face 13 ′ of these same teeth 11 is inclined downwards, the distance then the bringing together of the blades will push the material down, as indicated above, creating a self-feeding effect.
- the teeth In the lower zones of the blades, which are advantageously inclined relative to the vertical (by an angle ⁇ of approximately 45 ° in the figures, but which can for example be between 0 and 60 °, values which can vary enormously depending on applications), the teeth have a horizontal face facing downwards 14, respectively a horizontal face facing upwards 15.
- connection zone comprising more conventional teeth 12 with inclined faces, these faces being complementary so as to be able to fit together.
- the upper zones of the two blades form a right V shape, forming a feed hopper, with an opening half-angle of the order of 45 ° relative to the vertical.
- This angle ⁇ which can be identical or different from the angle ⁇ mentioned above, can also vary between 0 ° and 60 °, and the V can have a curvilinear profile or in successive sections of different inclination.
- This part therefore forms a funnel for the material to be ground and the shape of the teeth present in the funnel will, as has already been indicated and is clearly visible in FIG. 2a, contribute to bringing the material down to the lower grinding zone.
- FIG. 2a in fact which is only a simplifying principle diagram representing only a single pair of blades, the arrow f3 illustrates the downward movement of the material. It will be observed that here the funnel has a non-straight shape, in an evolving curve.
- FIG. 2b which repeats FIG. 2a
- the mill according to the invention is equipped with five pairs of consecutive blades (101,201; 102,202; 103; 203, 104,204; 105,205) some of which (201,102,203,104,205) are fixed.
- a thickness of blades of the same order of magnitude will be chosen (for example 3 to 5 mm), height for the teeth less than approximately 5 to 10 mm, a height of the blades in the lower zone of 6 to 8 cm for a total height of the blades which can go up to 20 cm; we will have for example sixty side-by-side for a width of 30 cm.
- the value of 5 mm is only an example, since by varying the above parameters, one can choose the particle size of the ground material.
- the blade 101 is female and the blade 201 is male, the blade 102 is male and the blade 202 is female and so on alternately, the zones 1 and 9, respectively 8 and 10 being correlatively alternately on each on both sides.
- the mill operates in the following manner, it being understood that the movement of the blades can be synchronized, or else offset in space or in time.
- the synchronized operating mode will be explained below in more detail.
- the blades move towards and away from each other and the material placed in the "funnel" forming a hopper is, for large pieces, already torn and pierced. There is therefore first an effect of compaction and partial overwriting. Thanks to the shape of the teeth, the material is pushed downwards where it compacts more and more.
- the shearing effect between two consecutive blades sliding against each other is a vertical shearing effect cutting the material, while the shearing effect between two faces of horizontal teeth in the grinding zone is a shearing effect horizontal also cutting the material
- the crushing effect is obtained by the blades which come closer to come to bear against each other, in the lower zone 8
- the parameters of the angles of the funnel and its shape, the geometry and the length of the lower grinding zone are determined to allow drilling, tearing or previously compressing the material in the funnel, pushing it into the grinding where it will be ground when the teeth will come to engage each other as far as the stop, with the clearance imposed by the final size of the ground particles
- the blades can be mounted on an elastic device (springs or shock absorbers) with play, so that they do not come fully into abutment face against face unless there is no ground material particle caught in them, leaving the necessary clearance otherwise
- Figure 3 is a top view of the blades in a variant where the grinder alternately comprises fixed blades (102,201, 103,204, etc.), shown in gray, while the movable blades (101, 202,103,204, etc.) are shown with hatching
- the letters a, b, c and d represent different stages of moving away and bringing together the moving blades At a, all the blades are separated.
- the movable blades have exceeded the fixed blades and have therefore eliminated any material which may have fixed on them (cleaning step)
- the movable blades have just passed over each other and the material has been cut by shearing on the vertical edges
- the movable blades penetrate into the fixed blades and the material is sheared horizontally by the faces of the horizontal teeth sliding on each other, then it is crushed and crushed at the end of travel Then, the movable blades move away and we find sacred in position at.
- the shredder according to the invention is "anti-blocking", that is to say that no particle of shredded material can accumulate durably until it blocks the operation of the blades.
- the mill is also "self-cleaning", the blades being arranged so that, during their journey, the vertical edge of a blade passes against the vertical edge of its neighbors. By moving forward, a blade repels the material that can stick to a tooth of its neighbors. The cut pieces will fall lower to undergo a new action of crushing and shearing.
- FIG. 4 which illustrates another embodiment, the male 1 and female 2 blades have been crossed from left to right, to clearly show that the arrangement of these blades, from right to left or from left to right, is indifferent. We find all the elements already described in Figure 1 with the same reference numbers.
- the essential difference lies in the lower part of the blades, since the female blade 2 has, from bottom to top, a cutout 17, without tooth and according to a substantially curvilinear geometry 17. According to an alternative embodiment, follows at the end of a second cut 20 making clearance.
- the female blade 1 then has at the end a projection 10 in the form of a beak or nose which will take place in the cutout 20 above.
- a free space 18 is formed in which the materials being shredded will temporarily reside, before being expelled therefrom by cooperation between the nose 19 and the cutout 20.
- the cut 20 can be carried by the same blade as the cut 17, or by the opposite blade.
- this embodiment further improves the expulsion of the ground materials, preventing certain filiform dilacerates from being trapped between the consecutive blades. It must indeed be remembered that the two blades in approximation and distance are preceded and followed by other pairs of blades in approximation or distance, or, as mentioned above, of alternating fixed blades, so that the space 18 is actually a three-dimensional room.
- the blades are actuated by the shafts which pass through them (see Figures 1 and 4). It should be noted here that, depending on the weight of the blades constituting the jaws and the material constituting the teeth, the motor movement must be sufficient. However, once the movement has started, the blades being advantageously accelerated over a length of about 30 mm in about a second, the material is cut not only by the force communicated to the blades by the motor movement, but also by the kinetic energy stored. For example, 60 pairs of blades 5 mm thick as shown in Figure 1, actuated by 4 cylinders 25 mm in diameter powered by a hydraulic group with a 0.75 kW motor provide a torque of more than 1 ton.
- the mill according to the invention can be of reduced size and weight and thus find wide applications in the fields where it is necessary to have a light, energy-efficient grinder to reduce heterogeneous materials, such as waste, into particles as small as possible and reduce their volume.
- Such a crusher can therefore be used advantageously in small workshops or laboratories or at home, as well as on board aircraft where weight and volumes are the enemies and where we generally only have a counted electric generation
- This mill can moreover constitute one of the elements of a milling assembly in several stages, comprising several (n) mills according to the invention installed in series.
- the mill obtained by a mill (n-1) feeds the following mill (n ) in the series
- hospital waste is generally a mixture of human tissues, various textile materials (compresses, etc.), rubbery materials (gloves of surgery, etc.), syringes (mixture of plastic and metal), or even paper and cardboard (packaging)
- human tissues are likely to be infectious, hospital waste should not be put in the traditional circuit
- they must be treated separately, either in ad hoc centers external to the hospital, or in an internal treatment center at the hospital. They are always huge, noisy and energy-consuming installations, with which are associated sterilization facilities to destroy all pathogenic germs In all cases, they must be transported out of the operating room
- microwave sterilization comprising a grinder for the pre-treatment of waste, of sufficiently small dimensions so that each operating room or each department can have its own device, which avoids any external transport and handling
- a microwave treatment device is described for example in WO 97/44069
- the hospital waste to be treated In order for the device in question to remain of a volume compatible with an operating room, the hospital waste to be treated, of heterogeneous nature, must first be shredded into small dimensions and this is precisely where the shredder comes in. according to the invention, as an independent machine, or better in a combined grinding and sterilization installation, in particular microwave sterilization
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Crushing And Pulverization Processes (AREA)
- Processing Of Solid Wastes (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000587889A JP2002532228A (ja) | 1998-12-11 | 1999-12-06 | クラッシャー |
EP99956290A EP1140361A1 (fr) | 1998-12-11 | 1999-12-06 | Broyeur |
CA002354575A CA2354575A1 (fr) | 1998-12-11 | 1999-12-06 | Broyeur |
AU12923/00A AU1292300A (en) | 1998-12-11 | 1999-12-06 | Crusher |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98420231.7 | 1998-12-11 | ||
EP98420231A EP1008388A1 (fr) | 1998-12-11 | 1998-12-11 | Broyeur |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000035586A1 true WO2000035586A1 (fr) | 2000-06-22 |
WO2000035586A9 WO2000035586A9 (fr) | 2001-04-05 |
Family
ID=8235637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1999/001945 WO2000035586A1 (fr) | 1998-12-11 | 1999-12-06 | Broyeur |
Country Status (5)
Country | Link |
---|---|
EP (2) | EP1008388A1 (fr) |
JP (1) | JP2002532228A (fr) |
AU (1) | AU1292300A (fr) |
CA (1) | CA2354575A1 (fr) |
WO (1) | WO2000035586A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9522432B2 (en) | 2012-06-01 | 2016-12-20 | Herbert W. Staub | Cradle cutter |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1019806C2 (nl) * | 2002-01-21 | 2003-07-23 | Allan Glenn Harris | Inrichting voor het separeren van een injectienaald van een injectiespuit. |
FR2954713B1 (fr) | 2009-12-24 | 2013-08-09 | Bramand Et Fils | Machine de concassage incorporant un concasseur a couteaux |
CN112264157B (zh) * | 2020-09-17 | 2022-08-12 | 江苏东南植保有限公司 | 用于农药加工生产的输送碎料机构 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE49133C (de) * | W. KONEGEN in Braunschweig, Beckenwerperstr. 1 | Thonreiniger | ||
FR2018381A1 (fr) * | 1968-09-19 | 1970-05-29 | Lindermann Maschinenfabr | |
DE2420913A1 (de) * | 1974-04-30 | 1975-11-13 | Wilhelm Haeberle | Zerkleinerungsaggregat |
US4272032A (en) * | 1979-04-25 | 1981-06-09 | Bengt Hellberg | Disintegrator of wooden products |
US4848679A (en) * | 1988-02-22 | 1989-07-18 | Blumer Eldon D | Crusher |
RU2016659C1 (ru) * | 1992-07-31 | 1994-07-30 | Лавров Борис Петрович | Резцовый полосорез |
WO1997044069A1 (fr) | 1996-05-17 | 1997-11-27 | Snowdrift Corporation N.V. | Procede et appareil pour steriliser les dechets medicaux et veterinaires |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19703486A1 (de) * | 1997-01-31 | 1998-08-06 | Deere & Co | Nachzerkleinerungsvorrichtung |
-
1998
- 1998-12-11 EP EP98420231A patent/EP1008388A1/fr not_active Withdrawn
-
1999
- 1999-12-06 JP JP2000587889A patent/JP2002532228A/ja active Pending
- 1999-12-06 WO PCT/IB1999/001945 patent/WO2000035586A1/fr not_active Application Discontinuation
- 1999-12-06 AU AU12923/00A patent/AU1292300A/en not_active Abandoned
- 1999-12-06 CA CA002354575A patent/CA2354575A1/fr not_active Abandoned
- 1999-12-06 EP EP99956290A patent/EP1140361A1/fr not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE49133C (de) * | W. KONEGEN in Braunschweig, Beckenwerperstr. 1 | Thonreiniger | ||
FR2018381A1 (fr) * | 1968-09-19 | 1970-05-29 | Lindermann Maschinenfabr | |
DE2420913A1 (de) * | 1974-04-30 | 1975-11-13 | Wilhelm Haeberle | Zerkleinerungsaggregat |
US4272032A (en) * | 1979-04-25 | 1981-06-09 | Bengt Hellberg | Disintegrator of wooden products |
US4848679A (en) * | 1988-02-22 | 1989-07-18 | Blumer Eldon D | Crusher |
RU2016659C1 (ru) * | 1992-07-31 | 1994-07-30 | Лавров Борис Петрович | Резцовый полосорез |
WO1997044069A1 (fr) | 1996-05-17 | 1997-11-27 | Snowdrift Corporation N.V. | Procede et appareil pour steriliser les dechets medicaux et veterinaires |
Non-Patent Citations (1)
Title |
---|
SOVIET PATENTS ABSTRACTS Section PQ Week 9514, 5 May 1995 Derwent World Patents Index; Class P41, AN 95-104774, XP002100593 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9522432B2 (en) | 2012-06-01 | 2016-12-20 | Herbert W. Staub | Cradle cutter |
Also Published As
Publication number | Publication date |
---|---|
AU1292300A (en) | 2000-07-03 |
CA2354575A1 (fr) | 2000-06-22 |
JP2002532228A (ja) | 2002-10-02 |
EP1140361A1 (fr) | 2001-10-10 |
EP1008388A1 (fr) | 2000-06-14 |
WO2000035586A9 (fr) | 2001-04-05 |
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