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
  • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
  • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
  • B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42C—BOOKBINDING
  • B42C19/00—Multi-step processes for making books
  • B42C19/08—Conveying between operating stations in machines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
  • B65H29/003—Delivering or advancing articles from machines; Advancing articles to or into piles by grippers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
  • B65H29/58—Article switches or diverters
  • B65H29/60—Article switches or diverters diverting the stream into alternative paths
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H39/00—Associating, collating, or gathering articles or webs
  • B65H39/10—Associating articles from a single source, to form, e.g. a writing-pad
  • B65H39/115—Associating articles from a single source, to form, e.g. a writing-pad in juxtaposed carriers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
  • B65H5/30—Opening devices for folded sheets or signatures
  • B65H5/301—Opening devices for folded sheets or signatures comprising blade-like means inserted between the parts to be opened
  • B65H5/302—Opening devices for folded sheets or signatures comprising blade-like means inserted between the parts to be opened the blade-like means being stationary
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
  • B65H5/32—Saddle-like members over which partially-unfolded sheets or signatures are fed to signature-gathering, stitching, or like machines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/30—Orientation, displacement, position of the handled material
  • B65H2301/32—Orientation of handled material
  • B65H2301/323—Hanging
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/40—Type of handling process
  • B65H2301/43—Gathering; Associating; Assembling
  • B65H2301/436—Gathering; Associating; Assembling on saddles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2405/00—Parts for holding the handled material
  • B65H2405/50—Gripping means
  • B65H2405/55—Rail guided gripping means running in closed loop, e.g. without permanent interconnecting means

Definitions

• the present invention relates to a device for feeding printed products to at least two processing stations for processing printed products according to the preamble of claim 1. Furthermore, it relates to a device for feeding printed products to a processing station designed for collecting.
• processing stations is primarily to be understood to mean a machine unit in each case, which combines printed products fed into a finished product via an upstream feed section, or inserts an insert into each of the printed products, or stacks, packages, the printed products. strapped and / or strapped or addressed or cut to size.
• Processing station is also to be understood as a conveyor station to which printed products are to be fed. This further processing can either take place continuously, ie continuously, or in batches. Accordingly, the feed lines upstream of such processing stations must be designed to be able to feed the printed products continuously or discontinuously to the processing station.
• the performance of such a processing station is often not up to the performance of an upstream printed product source, be it a printing press, an unwinding station or the like or of the conveyor following it, and / or there is a desire to Feed parts of the production to a certain further processing and other parts of the same production to another processing. In both cases, the resulting production must therefore be divided up.
• a device suitable for this is disclosed, for example, in EP-A-0 272 398 and in the corresponding US Pat. No. 4,866,910.
• Endlessly driven single conveyors in overhead design which are provided with controllable grippers arranged at a distance from one another, each of which grips a printed product at its leading edge as seen in the conveying direction, are arranged in such a way that they cross the feed sections connected upstream of the processing stations.
• the streams are fed to a storage device at the intersection points, while at the same intersection point, printed products are simultaneously transferred from the storage device to the supply lines via a transfer point .
• a storage device with two winding cores which can be driven individually and independently of one another is arranged at each crossing point, one of the winding cores being aligned with the respective individual conveyor and the other of the winding cores with the transfer point.
• These storage devices maintain the formation of the resulting stream and transfer the stream thus stored in the same formation to the assigned feed paths.
• This known device thus has, to a certain extent, an intermediate storage in the area of each intersection, which is always filled and dismantled at the same time the dismantling takes place independently of the quantity delivered by the electricity and can thus be adapted to the needs of the subsequent processing station.
• This known device is limited in addition to the large space requirement and the large equipment expenditure in flexibility. Its strength lies in the ability to temporarily store a large number of continuously occurring, successive printed products. It is not or only poorly suited for the individual processing of individual or a small number of printed products.
• the printed products are each held by a clamp. Since the clamps are independent of one another, they can be fed individually to each of the desired feed sections by means of controlled switches. The printed products are thus transported by means of the clamps to the processing station and are released there by opening the clamp. It is not necessary to transfer the printed products from the clamps to a different conveyor. Since the feed lines are designed as buffer lines, fluctuations in the accumulation and the specification of the printed products are absorbed at each feed line.
• a particularly preferred embodiment of the device according to the invention further increases the flexibility in that clips or printed products can be guided past the feed lines.
• brackets are independent of one another and adjacent brackets can be at a different distance from one another, it is possible to hold them back at any point and to deliver them in a controlled manner.
• a particular embodiment of the device in this regard is specified in claim 3. It poses in a simple way sure that the turnouts can be moved without the risk of jamming or misdirection of clamps.
• Another preferred embodiment of the device according to the invention is specified in claim 4. It enables the introduction of printed products from a different production or printed product source.
• motorized drive of the clamps can be dispensed with in the area of the switches and feed sections, which allows a particularly simple construction.
• the embodiment of the device according to the invention enables problem-free introduction, discharge and buffering of the printed products, which is gentle on the printed products, and simple transfer to the processing stations.
• a particularly simple delivery of the printed product from the clamps to the processing lines of the processing stations is achieved with an embodiment of the device according to the invention.
• a further preferred embodiment of the device according to the invention enables the continuous transfer of the printed products to the processing lines.
• a particularly preferred embodiment of the device according to the invention for collecting the printed products is specified in claim 9.
• the embodiment of the device according to the invention allows the clocked delivery of the printed products to the processing stations and provides time for a safe transfer.
• Claim 11 defines a particularly preferred embodiment of the device according to the invention for opening and collecting the printed products.
• Claim 12 is defined as a preferred device for collecting printed matter.
• FIG. 1 shows an embodiment of the device according to the invention with a self-contained trunk conveyor and switches for individually feeding the printed products held by clamps from the trunk conveyor to the desired processing station;
• FIG. 2 shows a part of the device shown in FIG. 1 in perspective with an additional trunk conveying path
• FIGS. 1 and 2 in view and enlarged part of the device shown in FIGS. 1 and 2 in the transfer area of printed matter from the staples to a processing station;
• FIG. 4 is a perspective view of a further embodiment of the device according to the invention in the transfer area of the printed products to the processing station.
• the device shown in FIG. 1 has a conveyor device 10 with a self-contained trunk conveyor section 12, a plurality of feed sections 14, 14 'and return sections 16, 16'. These lines 12, 14, 14 ', 16, 16' are formed by rails 18, along which individual clamps 20 for transporting printed products 22, such as newspapers, magazines or parts thereof, in the conveying direction F from a takeover point 24 to the feed lines 14, 14 'assigned processing stations 26, 26' and then again to the takeover point 24.
• the trunk conveyor section 12 is connected to each of the feed sections 14, 14 'via a switch 28, so that, seen in the conveying direction F, each of the clamps 20 can be diverted from the trunk conveyor section 12 into the desired feed section 14, 14'.
• the return sections 16, 16 ' directly adjoin the feed sections 14, 14', which, as shown on the basis of the return sections 16 adjoining the supply sections 14, combine via switches 30 to form a return section 32 which is connected at the downstream end by means of a switch 30 ' is connected to the trunk conveyor line 12.
• the return sections 16 * adjoining the feed sections 14 ′ can be combined into one strand or individually connected to the trunk conveying section 12 via a corresponding switch.
• the trunk conveyor section 12 has a vertical section 34, in the lower end region of which the takeover point 24 is arranged.
• a first slope section 36 adjoins the upper end of the vertical section 34, followed by a second slope section 40 opposite the first slope section 36 after a curve section 38.
• the second slope section 40 merges into a vertical section 42, which leads to the lower end of the vertical section 34 via an arc section 44.
• the feed sections 14, 14 'and the return sections 16, 16' are located in the same plane as the second downward section 40, so that the clamps 20 can move from the upper end of the vertical section 34 due to their gravity in the conveying direction F to the curved section 44.
• Each of the brackets 20 is attached to a carriage 46 which is freely movable along the rails 18.
• the carriages 46 have driver cams (not shown) which, in order to move the brackets 20 in the curved section 44 and in the vertical section 34, cooperate with a drive wheel 48 or a drive belt 50 driven in rotation in the conveying direction F.
• the trunk conveyor section 12 is assigned a lock-like timing wheel 52, which is intended to release a bracket 20 at certain times.
• the first slope section 36, the curve section 38 and the part of the second slope section 40 located upstream of the timing wheel 52 form a storage path for the brackets 20.
• a further timing wheel 52 'can be arranged between the the feed lines 14 and the feed lines 14 'assigned to switches 28 may be provided.
• the first slope section 36 is connected to the vertical section 42 by a bypass section 54, indicated by dash-dotted lines.
• a sensor-actuator unit 56 ' is arranged at the switch 56 connecting the first gradient section 36 to the bypass section 54, which is intended to set the switch in such a way that clamps 20 occupied with printed products 22 remain in the trunk conveyor path 12 and clamps 20 without Printed products 22 are supplied to the bypass section 54, as indicated by a bracket 20.
• a switch 58 is in turn arranged, the actuator 58 'of which is actuated as a function of the sensor / actuator unit 56' in order to ensure that the clamp 20 located in the bypass section 54 is introduced into the vertical section 42.
• a stop element 60 is assigned to the second gradient section 40, which holds back brackets 20 arriving at the end of the second gradient section 40 depending on the position of the switch 58 if the switch 58 is used to introduce clamps 20 from the bypass section 54 into the vertical section 42 is set and releases as soon as the switch 58 is changed again, or the clips pass n.
• a processing station 26 or 26 ' is assigned to each of the feed sections 14, 14'.
• Each of the processing stations 26 has a stationary processing section 62, which is arranged below the relevant feed section 14 and is designed as a collecting section and is intended for this purpose is to receive the folded printed products 22 fed to them astride and to transport them in the longitudinal direction of the processing line 62, so that 10 further printed products can be deposited on the stored printed products by means of further conveying devices.
• stationary processing means that the processing line is fixed in the direction transverse to its longitudinal direction.
• An opening device 64 is arranged between each processing line 62 and the corresponding feed line 14 and is to be described in more detail in connection with FIGS. 2 and 3.
• circumferential grippers 66 which are each intended to grip a folded printed product 22 fed by means of a clip 20 in the hanging position at the fold 68 lying below, in order to rotate a horizontal axis 70 and the printed product opened during this rotation 22 to be released so that each of the two product parts 22 'connected to one another at the fold 68 comes to rest on one side of the support 72 of the processing line 62.
• the work stations 26 are designed to collect or insert printed products. They each have a stationary processing line 62, which runs below the relevant feed line 14 ′ and is designed as a gathering or insertion line 74, with a receiving part 76.
• the printed products 22 supplied by means of clips 20 and transferred to the receiving parts 76 by opening the clips 20 are transported in the relevant receiving part 76 in the longitudinal direction of the collating or inserting section 74, so that by means of a another conveyor 10 further printed products can be placed congruently on the already stored printed products or inserted into already stored and opened printed products.
• Each of the feed lines 14, 14 ' is designed as a buffer line, i.e. it has a certain length in order to be able to accommodate a number of clips 20 equipped with printed products 20.
• FIG. 1 further shows a generally known unwinding device with a winding core 82 mounted on the winding frame 80.
• This carries a roll 84 of a large number, together with a tension band wrapped winding tape in printed form 22.
• the printed products 22 are unwound from the roll 84 in scale formation S and fed to the takeover point 24.
• a device designated by 86 as disclosed, for example, in Swiss Patent Application No. 1996 1146/96, ensures that the printed products 22 fed to the takeover point 24 have a certain scale spacing which is greater than the depth of the brackets 20, and is prevented that two printed products 22 are congruent with each other.
• the drive wheel 48 is driven synchronously with the belt conveyor 88, which moves the printed products 22 from the direction 86 to the takeover point 24. These measures ensure that each clamp 20 is supplied with a single printed product 22.
• FIG. 2 shows a part of the second slope section 40 with the switches 28, the feed sections 14 adjoining it and parts of the processing stations 26 assigned to these feed sections.
• Parts of the conveyor device 10 and processing stations 26 corresponding to FIG. 1 are provided with the same reference numerals as there and are mentioned again only insofar as is necessary for the understanding of FIG. 2.
• the actuator units 92 of the switches 28 are connected to a control device 94. This is further indicated with line 96 ', with a stop device 96 assigned to each feed section 14, 14' and also with the other sensor actuator units 56 ', 58' shown in FIG. 1, stop elements 60 and drives for timing wheels 52, 52 'connected.
• the stop devices 96 are arranged in such a way that the jaws 20 'of the clamps 20 which are in contact with them lie in a vertical plane 98 which are defined by the longitudinal extent of the processing sections 62 concerned.
• the feed sections 14 run with a slope towards the stop device 96 in a further vertical plane which is perpendicular to the vertical plane 98.
• individual printed products 22 or a plurality of successive printed products 22 can be fed to any feed path 14.
• the feed sections 14 form buffer sections between the switches 28 and the stop devices 96.
• the supply of printed products 22 into the feed sections 14 is controlled in such a way that the processing stations 26 can work optimally and without interruption.
• each opening device 64 has a stationary opening sword 102, which is likewise arranged at least approximately in the vertical plane 98.
• the upper piercing tip 102 'of the opening sword 102 is located at the clamp 20 attached to the stop device 96 at a short distance from the side edge of the printed product 22 concerned and from the flower 90 above.
• the printed products 22 are preferably folded off-center so that one product part 22' has an edge region 22 "protruding above the other product part 22 '. This makes it easy to ensure that the opening sword 102 sticks between the two product parts 22' and the printed products 22 are opened in the center become.
• the edge 104 of the opening sword facing the carrier 100 approaches the carrier 100 starting from the insertion tip 102 ′ and then runs approximately coaxially therewith at a distance up to the vicinity of the support 72. Viewed in the longitudinal direction of the support 72, the edge 104 has the shape an acute-angled triangle with the tip lying at the piercing tip 102 ', as can be seen in particular in FIG. 2.
• the opening sword 102 sticks with the insertion tip 102 'between the two product parts 22', which are lifted further and further apart in the course of the further rotation, so that finally after a rotation through 180 ° through the opening sword 102, the two product parts 22 'each come to rest on one side of edition 72.
• the gripper 66 By opening the gripper 66, the opened printed product 22 falls astride the support 72, where it is conveyed further in the direction of arrow B, for example by means of cams.
• the stop device 96 releases the clamp 20 and then stops the immediately following one Clamp 20, whereby the next printed product 22 is ready to be taken over by a gripper 66.
• the feed sections 14 run in vertical planes that are at an angle to the vertical planes 98 defined by the collecting sections 62.
• the clamp jaws 20 ' are inclined with respect to the rail direction, so that the printed products 22 are again arranged essentially in the vertical plane 98 when clamps 20 are in contact with the stop devices 96.
• the clamps 22 to be arranged rotatably on the carriage, so that the printed products 22 can be aligned parallel to the vertical plane 92 in the region of the feed path 14 with any course of the rails.
• FIG. 2 also shows a gradient section 106 of a second trunk conveyor section 108.
• the second trunk conveying line 108 has two further points 110, to which connecting lines 112 connect, which via further points 110 ′ lead into the second downhill section 40 on the one hand upstream of the first point 28 seen in the conveying direction F, and on the other hand between the first and second points 28. It is of course conceivable to connect the second trunk conveyor line 108 to the first trunk conveyor line 12 via further connecting lines. These connecting lines 112 with the associated further points 110, 110 'enable the insertion of printed products 22 between printed products 22 transported by the first trunk conveyor line 12.
• the actuators 114 of the further points 110 and 110' are in turn connected to the control device 94 connected, wherein the switches 110 and 110 'assigned to a connecting section 112 are each simultaneously set on branches or non-branches.
• the feed section 14 shown in FIG. 4 has a straight-line opening and depositing section 116 which, seen in the conveying direction F, lies with a slope in the vertical plane 98 defined by the processing section 62.
• a stationary opening sword 118 is arranged between this opening and storage section 116 and the support 72 running below it in the horizontal direction.
• the brackets 20 are rotatable with respect to their carriage 46.
• the clamps 20 are aligned such that the downward-pointing jaws 20 'run essentially at right angles to the conveying direction F. As a result, a large storage density is achieved in the buffer section.
• the rail Downstream of the stop device 96, the rail runs around a curve in the opening and depositing section 116. In the region of this curve, the clamps 20 are controlled, for example via scenes, with respect to the carriages 46 in such a way that in the opening and depositing section 116 the clamp jaws 20 ' run in the direction of conveyance F and thus in level 98.
• the clips 20 are further intended to hold the printed products 22 hanging at their fold 68, so that the flower 90 is underneath.
• the one product part 22 "in turn has an edge section 22" protruding above the other product part 22, which now comes into contact with the piercing tip 118 'of the opening sword 118 opposite the conveying direction F, so that the opening sword in the middle the printed product 22 punctures between the product parts 22 'when a printed product 22 along the opening and Storage section 116 is moved. Since the opening sword 118 widens in the conveying direction F when viewed in plan view, the two product parts 22 'are raised and spread apart from one another so that each product part 22' comes to rest on one side of the support 72.
• the relevant clamp 20 is opened so that the printed product 22 straddles the support 72.
• a driving cam 120 moved in the direction of arrow B takes the stored printed product 22 with it to the subsequent feed section, where a further printed product is placed on the already stored one.
• the devices shown in the figures operate as follows. Printed products 22 unwound from the winding 84 in scale formation S are individually picked up at the takeover point 24 by a clip 20 at the flower 90 by closing the clip mouth 20 '.
• the relevant clamp 20 is raised as a result of the further rotation of the drive wheel 48, as a result of which the printed product 22 is lifted upwards from the subsequent printed product 22. As a result, its leading flower 90 is exposed for engagement by the following bracket 20.
• the clamp 20 reaches the effective range of the drive belt 50 and is lifted by it along the vertical section 34 into the first downward section 36.
• each clip 20 is checked again whether it has detected a printed product 22 or not.
• the bracket 20 moves freely along the first due to gravity Slope section 36, possibly the curve section 38 and the second slope section 40, until it abuts the leading bracket 20. Since the trunk conveyor section 12 has a large storage capacity from the end of the vertical section 34 to the timing wheel 52, the clips 20 can be released by the timing wheel 52 independently of the takeover of the printed products 22 at the takeover point 24.
• the control device 94 determines which processing station 26 or 26 'the printed product released by the timing wheel 52 or 52' is to be fed to and sets the switch 28 accordingly. This makes it possible for any printed product 22 to be fed to any processing station.
• the printed products 22 fed to a feed section 14 are arranged in the correct order in the buffer section and the transfer of the printed products 22 to the processing station 26 or 26 ′ in question can in turn take place independently of the transfer of the printed products by the conveyor device 10.
• the clamps 20 run back along the return path 16, 16 ′ into the trunk conveying path 12, where they again form a supply in the vertical section 42, run onto one another and then again at the end of the vertical section 42 into the effective range of the Drive wheel 48 arrive.
• the printed products 22 need only be arranged in the scale formation S in such a way that the fold 68 is leading in relation to the flower 90.
• the processing stations are devices for collating, collecting or inserting the printed products, a plurality of devices are preferably arranged one behind the other along the processing lines, as shown in the figures.
• processing stations are packaging devices, a single conveyor device may be sufficient.
• any other source for printed products can be present, be it a feeder or a printing press.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Textile Engineering (AREA)
• Discharge By Other Means (AREA)
• Auxiliary Devices For And Details Of Packaging Control (AREA)
• Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
• Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
• Vending Machines For Individual Products (AREA)
• Collation Of Sheets And Webs (AREA)
• Management, Administration, Business Operations System, And Electronic Commerce (AREA)
• Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
• Branching, Merging, And Special Transfer Between Conveyors (AREA)
• Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Applications Claiming Priority (4)

Publications (2)

Family

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Family Applications (1)

Country Status (14)

Families Citing this family (32)

Family Cites Families (17)

• 1997
  • 1997-05-16 AU AU26880/97A patent/AU717021B2/en not_active Ceased
  • 1997-05-16 CA CA002259405A patent/CA2259405A1/fr not_active Abandoned
  • 1997-05-16 WO PCT/CH1997/000192 patent/WO1998003419A1/fr active IP Right Grant
  • 1997-05-16 DK DK97920474T patent/DK0918720T3/da active
  • 1997-05-16 ES ES97920474T patent/ES2178774T3/es not_active Expired - Lifetime
  • 1997-05-16 AT AT97920474T patent/ATE222212T1/de not_active IP Right Cessation
  • 1997-05-16 RU RU99103300/12A patent/RU2162432C2/ru not_active IP Right Cessation
  • 1997-05-16 EP EP97920474A patent/EP0918720B1/fr not_active Expired - Lifetime
  • 1997-05-16 PL PL97331261A patent/PL183528B1/pl not_active IP Right Cessation
  • 1997-05-16 CN CN97196498A patent/CN1093831C/zh not_active Expired - Fee Related
  • 1997-05-16 JP JP10503641A patent/JP2000514765A/ja active Pending
  • 1997-05-16 DE DE59707975T patent/DE59707975D1/de not_active Expired - Lifetime
• 1999
  • 1999-01-13 US US09/229,189 patent/US6003859A/en not_active Expired - Fee Related
  • 1999-01-19 NO NO19990235A patent/NO310611B1/no not_active IP Right Cessation

Non-Patent Citations (1)

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