Title of Invention

CARD TOP BAR FOR A CARDING MACHINE, HAVING A CARRYING MEMBER AND A CLOTHING PORTION

Abstract

The invention relates to a card top bar (14) for a carding machine, comprising a carrying member (14b) and a releasable clothing portion, the clothing portion having clothing (18,19,23), a carrier (24, 26) for the clothing (18, 19, 23), and two card top heads (14', 14", 14 to 14 ), the card top heads comprising at least one sliding region (14 14 ) arranged for sliding, in use, on a slideway (2O), wherein the card top heads and the carrier (26) for the clothing are in engagement with one another and form a structural unit.

Full Text

Card top bar for a carding machine, having a carrying member and a clothing portion The invention relates to a card top bar for a carding machine, having a carrying member and a releasable clothing portion, in which card top bar there are provided two end head-pieces (card top heads), each of which slides on a slideway, the end head-pieces comprising at least one sliding region, which is in contact with the slideway, and at least one fixing region, which is in engagement with the card top bar and which at the same time holds the sliding region. In a known card top bar, the end head-pieces (card top heads) are associated with the carrying member. The problem of the invention is to improve the known card top bar still further. The invention provides a card top bar for a carding machine, having a carrying member and a releasable clothing portion, in which card top bar there are provided two end head-pieces (card top heads), each of which slides on a slideway, the end head-pieces comprising at least one sliding region, which is in contact with the slideway, and at least one fixing region, which is in engagement with the card top bar and which at the same time holds the sliding region, characterised in that the card top heads and a carrier for the clothing are in engagement with one another and form a structural unit. The fact that the card top heads are in engagement with the carrier for the clothing makes it possible for the clothing portion, including the card top heads, to be manufactured as a separate component. In the process, it is made possible for a constant setting to be obtained for the important spacing between the sliding surface of the card top heads and the free ends (tips) of the clothing. Manufacturing tolerances in the carrying member, which is made, for example, from extruded aluminium, can no longer have an adverse effect on that spacing. A further advantage is that, when the clothing has become worn, the complete clothing portion (clothing strip, holding device and card top heads) can be removed and thrown away. It is especially advantageous that replacement of the clothing portion is carried out by simple means in the spinning room, it being possible for the carrying members to be re-used without modification. Precise setting of the card top heads relative to the clothing tips and, accordingly, of the important spacing between the clothing tips and the cylinder clothing (carding nip) is made possible by means of the measures according to the invention. The carrier may be of one-piece construction. The carrier may instead consist of a carrying element for the clothing and a compensating layer which may be connected to one another. The compensating layer may be arranged between the carrier and the carrying member. The card top heads may be in engagement, preferably non-releasably, with the carrier, for example with a compensating layer thereof, for example, directly or by way of an auxiliary carrier. The fixing region for the card top heads may be arranged in the compensating layer, for example with the sliding region extending outwardly beyond the carrier. Each card top head may have two elements, for example, pins of hardened steel or the like, the sliding surface of which may be ground, fine-ground and/or polished. The card top heads may be fixed in the respective end face of the carrier. Advantageously, the lower boundary of the card top heads is spaced from the free clothing tips. The carrying member and the clothing portion may form at least two composite components. The clothing portion advantageously comprises the carrier, the clothing and the card top heads. The carrying member and the clothing portion are advantageously connected to one another by releasable fixing means, for example, clips, clamps or the like. Fixing means, for example, resilient snap-fit elements, may be attached to the carrying member or to the clothing portion. The card top heads maybe connected to the carrier by adhesive action or the like. Advantageously, at least one continuous rod or the like, advantageously of a wear- resistant material, is provided, which extends over the width of the card top bar. The rod or the like may be accommodated within the carrier. The ends of the rod or the like may extend out beyond the carrier on both sides, in the form of card top heads. Where a compensating layer is present, that may be of plastics material or the like, for example of a synthetic resin such as epoxy resin, or of polyester or the like. The plastics material, synthetic resin or the like may be curable, and/or may be pourable. It may be, for example, an adhesive. The plastics material, synthetic resin or the like advantageously adheres more strongly to the clothing carrier than at the bottom surface of the carrying member. The compensating layer may be a rigid foam. Advantageously, an adhesive layer may be provided between the compensating layer and the bottom surface of the card top bar. A compensating step may be provided in the bottom surface of the carrying member. The card top bar and the card top clothing are associated with the same reference plane. The reference plane may be a flat counterpart surface for the tip of the card top clothing, for example a plate or the like. The card top carrying member may be an extruded member of a light metal, for example aluminium, which is advantageously hollow and may be cut to length, for example by sawing. Advantageously, the cut-to-length carrying member can be straightened. Two end head-pieces (card top heads) may be associated with the carrier. Advantageously, a carrying element for the card top clothing, for example of textile material, and a compensating layer are arranged at a recess in the bottom surface of the carrying member. Advantageously, a spacing between the sliding surfaces at the card top heads on the outer surface of the slideway and the envelope curve of the card top clothing tips is even. The card top heads may lie on a reference plane, for example a flat metal member or the like. The reference plane may be a magnetic plate. The plate and the reference plane may be attached to a common holding element. The reference plane and a further reference plane coinciding with the clothing tips may be orientated parallel to one another. The spacing between the reference planes may be adjustable. For manufacture, the clothing tips are set down on the further reference plane and the card top heads are set down on the reference plane, and an intermediate layer is applied between the carrying member and the clothing strip. The intermediate layer may be applied by melting, for example, after warming or otherwise heating. The underside of the carrying member may be structured, for example having recesses, protrusion, holes or the like. The carrier may have lateral recesses, grooves or the like for engagement of the fixing elements. Fixing elements may be present on the carrying members for engagement with the bottom surface of the carrier. The carrying member may have lateral shoulders, recesses or the like for engagement of fixing elements present on the carrier. For fixing the clothing portion, fixing means for example resilient snap- in elements may be attached to the carrier. The invention will be described hereinafter in greater detail with reference to exemplary embodiments shown in the drawings, in which: Fig. 1 shows, in a diagrammatic side view, a carding machine having the apparatus according to the invention; Fig. 2 shows clothed card top bars, portions of a slideway and flexible bend, and the spacing between the card top bar clothing and cylinder clothing; Fig. 3a shows, in a sectional side view, the rear part and carrying member of the card top bar; Fig. 3b shows, in a side view, a carrier; Fig. 3c shows, in a side view, a section through a clothing strip; Fig. 3d shows the card top bar having the apparatus according to the invention, in an assembled state; Figs. 4a, 4b show a further arrangement of the card top bar and holding element, having a click and snap-in connection; Fig. 5 shows, in a side view and partly in section, an arrangement according to the invention, having a device for alignment of the card top bar for application of a compensating layer; Fig. 6 is a detailed view of the arrangement according to Fig. 5; and Figs. 7 to 10 show further arrangements of the apparatus according to the invention. Fig. 1 shows a carding machine, for example a Triitzschler DK 903 high-performance carding machine, having a feed roller 1, feed table 2, lickers-in 3a, 3b, 3c, cylinder 4, doffer 5, stripper roller 6, nip rollers 7, 8, web-collecting element 9, web funnel 10, draw-off rollers 11, 12, revolving card top 13 having clothed card top bars 14, can 15 and can coiler 16. Curved arrows indicate the directions of rotation of the rollers. Reference letter A denotes the work direction. Stationary- carding elements 33 and 34 are arranged opposite the cylinder clothing 4a. In accordance with Fig. 2, on each side of the carding machine, a flexible bend 17 having several adjustment screws is fixed laterally to the machine frame. The flexible bend 17 has a convex outer surface 17a and an underside 17b. On top of the flexible bend 17 there is a slideway 20, for example made of low-friction plastics material, which has a convex outer surface 20a and a concave inner surface 2 0b. The concave inner surface 2 0b rests on top of the convex outer surface 17a and is able to slide thereon in the direction of arrows B, C. Each card top bar, which may be constructed, for example, in accordance with EP 0 567 747 A1, consists of a rear part 14a and a carrying member 14b. The carrying member 14b has a bottom surface 14c, two lateral surfaces 14d, 14e and two upper surfaces 14f, 14g (see Fig. 3a). Each card top bar 14 has, at each of its two ends, a card top head 14', 14' (cf. Fig. 5), each of which comprises two steel pins 141, 142 and 143, 144, respectively, a portion of which in the axial direction is fixed in a compensating layer 24. Those portions of the steel pins 141, 142 (see Fig. 9) that extend out beyond the end faces of the carrying member 14b slide on the convex outer surface 20a of the slideway 20 in- the direction of the arrow D. The clothing strip 18 is attached to the underside of the carrying member 14b. Reference numeral 21 denotes the circle of tips of the card top clothings 19. The cylinder 4 has on its circumference a cylinder clothing 4a, for example a sawtooth clothing. Reference numeral 22 denotes the circle of the tips of the cylinder clothing 4a. The spacing between the circle of tips 21 and the circle of tips 22 is denoted by reference letter a and is, for example, 3/1000". The spacing between the convex outer surface 20a and the circle of tips 22 is denoted by reference letter b. The radius of the convex outer surface 20a is denoted by reference letter rx and the radius of the circle of tips 22 is denoted by reference letter r2. The radii r1 and r2 intersect at the centre point M of the cylinder 4. In accordance with Fig. 3a, the card top bar 14, which is extruded from aluminium, is composed of the rear part 14a and the carrying member 14b. The carrier 26 according to Fig. 3b, which is extruded from aluminium, is composed of a holding element 26a and two fixing elements 26b and 26c. The free end regions 26b1 and 26c2 of the holding elements 26b and 26c are bent at right angles in different directions. They may, in each case, also be bent at an acute angle. The carrier 26 is made of one piece from one material. The fixing elements 26b and 26c may also- be attached to the holding element 26a, for example by laser welding. The fixing elements 26b, 26c and the holding element 26a may also be made from different materials. The regions 26a2 and 26a3 are used for additional holding of the carrying element 23 for the clothing strip 18 (see Fig. 3c). In accordance with Fig. 3c, the clothing strip 18 consists of clothing tips 19 (small wire hooks) and a carrying element 23 made from a textile material. Reference letter f denotes the thickness of the carrying element 23. At one of their ends, the small wire hooks 19 are fixed in the carrying element 23, through the surface 23'. At the other end, the small wire hooks 19, that is to say the clothing tips, are free. Fig. 3d shows the card top bar 14 according to Figures 3a to 3c in the assembled state. The clothing strip 18 is fixed to one face 262 (the inner face) of the carrier 26. The other face 26i (the outer face) of the carrier 26 lies against the carrying member 14b. The end regions 26b2 and 26c2 of the fixing elements 26b and 26c, respectively, press against the upper surfaces 14f and 14g, respectively, of the carrying member 14b, as a result of which the carrier 26, together with the clothing strip 18, is fixed to the card top bar 14. Arranged between the inner face 262 of the carrier 26 and the carrying element 23 is an intermediate layer 24, for example made from cured synthetic resin or the like. The compensating layer 24 is able to compensate for disparate spacings between the card top bar 14, namely the bottom surface 14c, and the card top clothing 19, namely the envelope contour of the free tips. The fixing region for the steel pins 14l, 142 forming the card top head 14' is arranged in the compensating layer 24 (see Fig. 6). The sliding region of the steel pins 141, 142 extends freely outwards, beyond the end face of the compensating layer 24 (see Figs. 5 and 6). In that manner, the card top heads 14', 14' and the holding device - which, in accordance with Fig. 3d, is composed of the holding element 26 and the compensating layer 24 - for the clothing strip 18 are in engagement with one another and together form a structural unit. The structural unit consisting of holding element 26, compensating layer 24, clothing strip 18 and card top heads 141, 142 is prefabricated separately. A further advantage is that the structural unit can be mounted on the carrying member 14b, and removed from the carrying member 14b, by simple means both in the manufacturing factory and at the user's premises, that is to say in the spinning room itself. The structural unit can be supplied to the user in the form of a prefabricated replacement part. As Fig. 5 shows, arranged in a fixed position on a flat plate 25, between the card top pins 141, 142 and the plate 25, is a parallelepipedal supporting element 27a having parallel and flat surfaces and, between the card top pins 143, 144 and the plate 25, a further parallelepipedal supporting element 27b of the same height h. Using this apparatus and further lateral fillet elements (not shown) or the like (for example, displaceable boundary surfaces for the compensating layer 24 and/or the carrying element 23), it is possible to position the clothing tips 19 of the clothing strip 18 on the plate 25 and the pins 141, 142, 143, 144 on the supporting elements 27a, 27b. The compensating layer 24 is then introduced between the carrier 26 and the carrying element 23. That may be accomplished by, for example, pouring it in, injecting it, spreading it in, laying it in or the like. The compensating layer 24, for example of paste-like consistency, becomes distributed in the intermediate space, filling it in compensating manner. In accordance with Fig. 6, there is provided a static carrier element 14*, which can, for example, in accordance with Fig. 3a, be constructed in the form of a T-carrier or the like. The receiving portion for the card top pins 142 may consist of, for example, a poured compound/adhesive, construction foam or the like. The height h always has the same dimension in the case of all card top bars, thereby eliminating dimensional tolerance. The fixing region of the- card top pin 142 is arranged in the compensating layer 24, and the free end thereof - the region sliding on the slideway 20a of the sliding bend 20 (see Fig. 2) - is located outside the compensating layer 24. In accordance with Fig. 7, separate spring clips 29a, 2 9b are provided, by means of which the structural unit composed of compensating layer 24, clothing strip 18 (consisting of clothing 19 and carrier 23) and card top pins 14i, 142 (143 and 144 are not shown) is releasably fixed to the carrying member 14b of the card top bar 14. Fig. 8 shows an arrangement wherein resilient clips 14h, 14i are integrally formed on the carrying member 14b, for example during extrusion. As a result, the clips 14h, 14i are integrated into the card top bar 14. The compensating layer 24 has longitudinal grooves 30a, 30b on its sides, extending in the width-wise direction, in which the bent- over free ends of the resilient clips 14h, 14i releasably engage. Fig. 9 shows an arrangement, wherein resilient clips 26d, 26e are integrally formed on the carrier 26, for example during extrusion. As a result, the clips 26d, 26e are integrated into the carrier 26. The clips have, on their free ends, engagement portions, which are in releasable engagement with corresponding engagement surfaces on the carrying member 14b. The parts in. engagement with one another may be bent over, for example at an acute or obtuse angle. In accordance with Fig. 10, the compensating layer 24 is enclosed by an approximately U-shaped tension bar 31 made from metal, above which the rear part 14a of the card top bar 14 is formed from rigid foam or the like. Provided at the top of the rear part 14a is an approximately U-shaped compression bar 32 made from metal. The compression bar 32 and tension bar 31 equalise forces and stabilise the rear part 14a. The statically supporting part is also integrated into the wearing component. A sandwich construction makes that technically possible. This solution precludes the need for on-site assembly. The apparatus according to the invention substantially reduces the flatness tolerance and dimensional tolerance, measured over the clothing surface, within a card top set consisting of several card top bars 14. A further important advantage is that, when clothings are replaced at the customer's premises, the installation work is reduced. As a result of the invention, the interface between pins (and clothing) is shifted. The pins are an integral part of the wearing portion, namely the clothing. As especially Figures 3d, 5, 6 and 7 to 10 show, the clothing 19, material 23, tolerance-compensating layer 24 and card top pins 141, 142 form one component. It is accordingly possible for dimension h always to be kept the same and for the customer to be provided with a component in which precision is already in-built. Figures 7 to 10 show, by way of example, secure and simple mounting of this unit (component) on the static carrier. WE CLAIM 1. A card top bar (14) for a carding machine, comprising a carrying member (14b) and a reteasable clothing portion, the clothing portion having clothing (18,19,23), a carrier (24,26) for the clothing (18,19,23), and two card top heads (14', 14", I41, to 144), the card top heads comprising at least one sliding region (141, 142) arranged for sliding, in use, on a slideway (20), wherein the card top heads and the carrier (26) for the clothing are in engagement with one another and form a structural unit. 2. A card top bar as claimed in claim 1, wherein the carrier (26) is of one- piece construction. 3. A card top bar as claimed in claim 1, wherein the carrier (26) comprises a carrying element (23) for the clothing and a compensating layer (24). 4. A card top bar as claimed in claim 3, wherein the carrying element (23) and the compensating layer (24) are connected to one another. 5. A card top bar as claimed in claim 3 or claim 4, wherein the compensating layer (24) is arranged between the rest of the carrier (26) and the carrying member (14b). 6. A card top bar as claimed in any one of claims 3 to 5, wherein the card top heads (143, 144) are in engagement with the compensating layer (24). 7. A card top bar as claimed in any one of claims 3 to 6, wherein the card top heads each have at least one fixing region arranged in the compensating layer. 8. A card top bar as claimed in any one of claims 3 to 7, wherein the compensating layer is made from plastics material. 9. A card top bar as claimed in any one of claims 3 to 8, wherein a synthetic resin, for example epoxy resin, is provided as compensating layer. 10. A card top bar as claimed in any one of claims 3 to 8, wherein polyester is provided as compensating layer. 11. A card top bar as claimed in any one of claims 8 to 10, wherein the plastics material, synthetic resin or the like to be used for the compensating layer is curable. 12. A card top bar as claimed in any one of claims 8 to 11, wherein the plastics material, synthetic resin or the like to be used for the compensating layer is pourable. 13. A card top bar as claimed in arty one of claims 8 to 12, wherein the plastics material, synthetic resin is adhesive. 14. A card top bar as claimed in any one of claims 8 to 13, wherein the plastics material, synthetic resin adheres more strongly to the clothing carrier than at the bottom surface (14c) of the carrying member (14b). 15. A card top bar as claimed in any one of claims 3 to 8, wherein a rigid foam is provided as compensating layer. 16. A card top bar as claimed in any one of claims 3 to 8, wherein an adhesive layer is provided between the compensating layer (24) and the bottom surface (14c) of the carrying member (14b). 17. A card top bar as claimed in any one of claims 1 to 16, wherein the sliding region of each card top heads extends outwards beyond the carrier. 18. A card top bar as claimed in any one of claims 1 to 17, wherein the card top heads are in engagement with the carrier directly. 19. A card top bar as claimed in any one of claims 1 to 17, wherein the card top heads are in engagement with the carrier by way of an auxiliary carrier. 20. A card top bar as claimed in any one of claims 1 to 19, wherein the card top heads are non-releasably connected to the carrier. 21. A card top bar as claimed in any one of claims 1 to 20, wherein each card top head has two elements. 22. A card top bar as claimed in any one of claims 1 to 21, wherein the card top heads are fixed in the respective end face of the carrier. 23. A card top bar as claimed in any one of claims 1 to 22, wherein the card top heads comprise pins of hardened steel. 24. A card top bar as claimed in claim 23, wherein the pins have a sliding surface that is ground, fine-ground and/or polished. 25. A card top bar as claimed in any one of claims 1 to 24, wherein the lower boundary of the card top heads is in a plane that is spaced from a further plane in which the free clothing tips are located. 26. A card top bar as claimed in any one of claims 1 to 25, wherein the carrying member and the clothing portion form at least two composite components. 27. A card top bar as claimed in any one of claims 1 to 26, wherein the clothing portion comprises the carrier, the clothing, and the card top heads. 28. A card top bar as claimed in any one of claims 1 to 27, wherein the carrying member and the clothing portion are connected to one another by releasable fixing means (26b, 26e). 29. A card top bar as claimed in claim 28, wherein the fixing means are separate dips, or damps. 30. A card top bar as claimed in any one of claims 1 to 28, wherein, for attachment to the clothing portion, fixing means, for example resilient snap-in elements, are attached to the carrying member. 31. A card top bar as claimed in claim 30, wherein the carrier has lateral recesses, grooves (30a, 30b) for engagement of the fixing elements. 32. A card top bar as claimed in claim 30, wherein the fixing elements present on the carrying member are in engagement with the bottom surface of the carrier. 33. A card top bar as claimed in any one of claims 1 to 28, wherein, for attachment to the carrying member, fixing means, for example resilient snap-in connections, are provided on the clothing portion. 34. A card top bar as claimed in claim 33, wherein the carrying member has lateral shoulders, recesses for the like for engagement of fixing elements present on the carrier. 35. A card top bar as claimed in any one of claims 1 to 33, wherein the card top heads are connected to the carrier by adhesive action. 36. A card top bar as claimed in any one of claims 1 to 35, wherein the clothing portion comprises at least one continuous rod, which extends over the width of the card top bar. 37. A card top bar as claimed in daim 36, wherein the rod is accommodated within the carrier. 38. A card top bar as claimed in claim 36 or claim 37, wherein the ends of the rod extend out beyond the carrier on both sides, in the form of card top heads. 39. A card top bar as claimed in any one of claims 36 to 38, wherein the rod is made from wear-resistant material. 40. A card top bar as claimed in any one of claims 1 to 39, wherein a compensating step is provided in the bottom surface of the carrying member. 41. A card top bar as claimed in any one of claims 1 to 40, wherein the carrying member is an extruded member of a light metal, for example aluminum. 42. A card top bar as claimed in claim 41, wherein the extruded member is a hollow member. 43. A card top bar as claimed in claim 41 or claim 42, wherein the carrying member can be cut to length, for example by sawing. 44. A card top bar as claimed in claim 43, wherein the cut-to-length card top bar can be straightened. 45. A card top bar as claimed in any one of claims 1 to 44, wherein two card top heads are associated with the carrying member. 46. A card top bar as claimed in claimed 45, wherein the card top heads are pins made form hardened steel. 47. A card top bar as claimed in any one of claims 1 to 46, wherein the carrier comprises a carrying element and a compensating layer arranged at a recess in the bottom surface of the carrying member. 48. A card top bar as claimed in any one of claims 1 to 47, wherein the spacing between the sliding surfaces of the card top heads which slide, in use, on the outer surface of slideway and an envelope curve of the card top clothing tips is substantially uniform. 49. A card top bar as claimed in any one of claims 1 to 48, wherein the underside of the carrying member is structured. 50. A card top bar as claimed in claim 49, wherein underside has recesses, protrusions, notes. 51. A card top bar for a carding machine, comprising a carrying member and a releasable clothing portion, the card top bar having two end head- pieces, each of which slides on a slideway, the end head-pieces comprising at least one sliding region, which is in contact with the slioeway and at least one fixing region, which is in engagement with the card top bar and which simultaneously holds the sliding region, characterized in that the card top heads and the holding device for the clothing are in engagement with one another and form a structural unit. 52. A card top bar substantially as described herein with reference to and as illustrated by any of Figures 3a to 3d, 4a and 4 b, and 5 to 10. 53. A card top bar as claimed in any one of claims 1 to 52, wherein the card top heads are located on a reference plane, for example a flat metal member. 54. A card top bar as claimed in claim 53, wherein a magnetic plate is provided as a reference plane for the clothing tips. 55. A card top bar as claimed in claim 54, wherein the plate and the reference plane for the card top heads are attached to a common holding element. 56. A card top bar as claimed in arty one of claims 53 to 55, wherein the reference plane for the clothing tips and the reference plane for the card top heads are oriented parallel to one another. 57. A card top bar as claimed in any one of datms 54 to 56, wherein the spacing between the reference planes is adjustable. 58. A card top bar as claimed in claim 53, wherein the card top bar and the card top clothing are associated with the same reference plane. 59. A card top bar as claimed in claim 58, wherein the reference plane is a flat counterpart surface for the tip of the card top clothing, for example a plate or the like. 60. A card top bar as claimed in any one of claims 53 to 59, wherein the clothing tips are set down on the reference plane for the clothing tips, wherein the card top heads are set down on the reference plane for the card top heads, and wherein an intermediate layer is provided as a compensating layer between the carrying member and the clothing strip. 61. A card top bar as dawned in claim 60, wherein the compensating layer is provided to the carrying member by melting. 62. A card top bar as claimed in claim 61, wherein the carrying member is warmed or heated before application of the compensating layer by melting. The invention relates to a card top bar (14) for a carding machine, comprising a carrying member (14b) and a releasable clothing portion, the clothing portion having clothing (18,19,23), a carrier (24, 26) for the clothing (18, 19, 23), and two card top heads (14', 14", 14 to 14 ), the card top heads comprising at least one sliding region (14 14 ) arranged for sliding, in use, on a slideway (2O), wherein the card top heads and the carrier (26) for the clothing are in engagement with one another and form a structural unit.

Documents:

307-KOL-2003-(13-08-2012)-FORM-27.pdf

307-KOL-2003-(28-11-2011)-FORM-27.pdf

307-KOL-2003-FORM 27.pdf

307-kol-2003-granted-abstract.pdf

307-kol-2003-granted-claims.pdf

307-kol-2003-granted-correspondence.pdf

307-kol-2003-granted-description (complete).pdf

307-kol-2003-granted-drawings.pdf

307-kol-2003-granted-examination report.pdf

307-kol-2003-granted-form 1.pdf

307-kol-2003-granted-form 18.pdf

307-kol-2003-granted-form 2.pdf

307-kol-2003-granted-form 26.pdf

307-kol-2003-granted-form 3.pdf

307-kol-2003-granted-form 5.pdf

307-kol-2003-granted-priority document.pdf

307-kol-2003-granted-reply to examination report.pdf

307-kol-2003-granted-specification.pdf

307-kol-2003-granted-translated copy of priority document.pdf