WO2006057607A1 - Dispositif et procede d'emballage d'une rangee d'objets dans une feuille thermo-retractable - Google Patents

Dispositif et procede d'emballage d'une rangee d'objets dans une feuille thermo-retractable Download PDF

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Publication number
WO2006057607A1
WO2006057607A1 PCT/SE2005/001769 SE2005001769W WO2006057607A1 WO 2006057607 A1 WO2006057607 A1 WO 2006057607A1 SE 2005001769 W SE2005001769 W SE 2005001769W WO 2006057607 A1 WO2006057607 A1 WO 2006057607A1
Authority
WO
WIPO (PCT)
Prior art keywords
stack
packaging
shrinking
packaging material
articles
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.)
Ceased
Application number
PCT/SE2005/001769
Other languages
English (en)
Inventor
Magnus Wigenstedt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nordisk Platindustri Benetec AB
Original Assignee
Nordisk Platindustri Benetec AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nordisk Platindustri Benetec AB filed Critical Nordisk Platindustri Benetec AB
Publication of WO2006057607A1 publication Critical patent/WO2006057607A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
    • B65B9/026—Enclosing successive articles, or quantities of material between opposed webs the webs forming a curtain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/50—Enclosing articles, or quantities of material, by disposing contents between two sheets, e.g. pocketed sheets, and securing their opposed free margins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B53/00—Shrinking wrappers, containers, or container covers during or after packaging
    • B65B53/02—Shrinking wrappers, containers, or container covers during or after packaging by heat
    • B65B53/06—Shrinking wrappers, containers, or container covers during or after packaging by heat supplied by gases, e.g. hot-air jets

Definitions

  • packaging machines which automatically seal packages by gluing belong to prior art.
  • US 2004/0011005 Al shows an exam- pie of a packaging apparatus for packaging a plurality of paper products in one package of a plastic material . It is shown how a continuous flow of paper products, such as napkins, arriving at the apparatus are first divided into a subset and how such a subset is then compressed by means of a press plunger to press air out of the paper products and thus reduce the volume of the subset. Sub ⁇ sequently a squeezer projects from a drum arranged at the side of the press plunger and the subset is pressed through a packaging material, which is held on the press plunger, into the squeezer.
  • US 2004/0011005 Al is suited to package compressible pro ⁇ ducts and is not suitable for packaging substantially rigid, non-compressible articles.
  • a subset of rigid articles would not stay in the squeezer after being pressed into the same since such a subset cannot exert an expansive pressure on the inside of the squeezer after pressing-in in the same way as the napkins intended in US 2004/0011005 Al can do in the compressed state.
  • US 2004/0011005 Al suitable to ensure that the articles of a subset are not laterally displaced relative to each other since the articles are expected to orient themselves automatically without being acted upon from the outside in the longitudinal axis of the subset. Such displacement of one or more substantially rigid articles of a subset may result in a serious disturbance in the packaging process such as machine stoppage or, if the article in question falls out of the subset, remain- ing articles not being packaged in the correct way and in the correct number.
  • the device according to US 2004/0011005 Al is provided with a means for sealing a packaging mate ⁇ rial with a binder, such as adhesive.
  • a binder makes the packaging device complicated and requires con- tinuous supply of adhesive for the packaging device to function.
  • the dosing device for adhesive must also be reliable so that an adequate seal is provided while at the same time adhesive does not come into contact with the articles that are to be packaged and contaminate them or even make them adhere to one another.
  • the device according to US 2002/0011005 Al is not convenient for other types of sealing techniques than gluing. The need for sealing by gluing specifically indicates that said device is not suitable for use with foodstuffs, due to the risk that the foodstuffs can then be subjected to contact with a glue line or glue residue .
  • Another object of the invention is to provide an improved method for packaging substantially rigid articles, which method alleviates at least some of the above-mentioned problems .
  • the invention is based on the knowledge that packag ⁇ ing of substantially rigid articles can be facilitated by the articles being fixed in order to maintain a con ⁇ tinuous stack during the packaging process.
  • the invention is based on the knowledge that it is possible to maintain a continuous stack of articles by exerting a fixing effect only on the two outermost articles in the stack.
  • stack is here meant a continuous length of articles which are arranged side by side.
  • the stack can be arranged horizontally as well as vertically or in some other direction.
  • the articles are arranged so that a predetermined side of each of the articles is parallel to a corresponding side of the other articles in the stack and so that the centre of each of the articles is arranged on a common axis.
  • a packaging device for packaging sub ⁇ stantially rigid articles in a shrinkable packaging mate- rial, comprising a receiving means for receiving a suc ⁇ cession of articles arranged in a stack to a receiving position; a wrapping means for wrapping packaging mate ⁇ rial around the stack; and a first shrinking means for shrinking at least part of the packaging material around the stack; the packaging device further comprising at least one holder means provided with two holder supports which are arranged to fix, during at least part of the wrapping of the packaging material and the shrinking of the same, the two outermost articles in the stack and thus maintain a continuous stack.
  • the holder means comprises holder supports, which are arranged to accom- pany, during at least part of the wrapping of the packag ⁇ ing material and the shrinking of the same, which occurs at least in two different positions, the stack when mov ⁇ ing between these positions and thus fix the two outer ⁇ most articles in the stack so as to maintain a continuous stack.
  • holder supports which are arranged to accom- pany, during at least part of the wrapping of the packag ⁇ ing material and the shrinking of the same, which occurs at least in two different positions, the stack when mov ⁇ ing between these positions and thus fix the two outer ⁇ most articles in the stack so as to maintain a continuous stack.
  • a packaging device also means that the length of the entire stack including the two outermost articles in the stack is wrapped in a pack ⁇ aging material while at the same time the compressive force exerted by the holder supports on the outermost articles in the stack ensures that all articles keep their place in the stack and that the disturbance in the packaging process are minimized.
  • the packaging device further comprises moving means for moving the stack between a wrapping position adjacent to the wrap- ping means and a shrinking position adjacent to the shrinking means.
  • the invention according to this embo ⁇ diment makes it possible to provide a quicker flow of stacks of articles through the packaging device since the stack can be moved from the wrapping position to the shrinking position where the shrinking means performs the shrinkage of the packaging material, which in a shorter time makes the wrapping position accessible for the next stack to be packaged.
  • the packag- ing device also comprises a second shrinking means, the first shrinking means being arranged to shrink the pack ⁇ aging material around both ends of the stack and the second shrinking means being arranged to shrink the pack ⁇ aging material around the central portion of the stack.
  • the shrinking means can be adjusted to shrink in an optimal manner that part of a packaging material which is arranged around the outer ends of the stack and that part of the packaging material which is arranged along the stack.
  • the pack- aging device further comprises a discharge means for dis ⁇ charging the stack from the packaging device.
  • the provi ⁇ sion of a discharge means makes it possible to discharge the stack after the completed packaging of the stack of articles .
  • at least one of the holder means and the first shrinking means is arranged on the moving means. This embodiment of the invention allows the stack of articles to be advanta ⁇ geously arranged in relation to the holder means and/or the first shrinking means even when the stack reaches the wrapping position and allows one of said means to accom ⁇ pany the stack during packaging of the same until it is fixed by the packaging material, which ensures that no further orientation of the stack is required.
  • the holder supports can be passive, in which case they are adjustable to a current stack length and are then locked in this position, so that they keep the stack in place during wrapping and shrinking of the packaging material and during optional movement between different positions for this, but where no active compression of the stack occurs in the locked position.
  • the holder supports can be active, in which case they continuously exert a compressive force on the stack. This can be achieved in various ways, for instance, by arrang- ing at least one of the holder supports to be resilient on a supporting structure, which in turn can be locked in a compressing position.
  • active compression by pneumatics, hydraulics or the like is conceivable.
  • At least one of the holder supports is arranged to perform a squeezing motion towards the other holder support.
  • a squeezing effect is provided, which fixes the stack between the holder supports without the holder supports having to grasp the terminal edge of the stack; only the outsides of the stack have to be accessible for the holder supports.
  • This allows the shrinkage of the packaging material to occur also around the ends of the stack, thus fixing the ends of the stack still more and, after completed packaging, ensuring that no articles fall out of the wrapped stack.
  • the invention in this embodiment allows stacks of different lengths to be packaged by the same packaging device without necessitat ⁇ ing that the packaging device be adjusted in a specific way, by the squeezing motion being capable of having an extent so that the holder support in question can fix stacks of varying lengths.
  • the receiving means receives that articles in an axial direc ⁇ tion.
  • the invention according to this embodiment facili ⁇ tates the provision of a continuous stack of articles since the articles reach the receiving means one after the other and, thus, the need for lateral orientation of the articles can be minimized.
  • the moving means moves the stack in a direction transversely to the longitudinal extent of the stack.
  • the invention according to this embodiment allows that the width of the packaging device does not have to exceed a multiple of the length of the stack, but instead can be kept compact.
  • the moving means is a rotatable drum.
  • This embodiment of the inven ⁇ tion also allows a compact design of the invention since the packaging device does not require a great lateral extent either, while at the same time the rotation of the drum around an axis allows exact movement between diffe ⁇ rent positions during the packaging process.
  • the drum can be arranged to move the stack between three, or preferably four, different work ⁇ ing positions.
  • the stack In a first position for instance, the stack can be received and the packaging material can be wrapped around the stack, in a second position shrinking of the packaging material can take place at the end parts of the stack, in a third position the remaining interme ⁇ diate part of packaging material can be shrunk, and in a fourth position the now packaged stack can be discharged for palletizing or similar continued handling.
  • the holder means at each stack-holding station of the drum in order to hold the stack intact during at least some critical parts of the packaging process.
  • the second shrinking means on the drum or outside the drum, as long as it does not shrink the packaging material until in the second shrink- ing position.
  • the pack ⁇ aging material is a shrinkable plastic film and shrinkage occurs by heat.
  • Shrinkage of shrinkable plastic film by heat means that an additional material, for instance a binder, is not necessary to seal the packaging material around the stack.
  • Shrinkage by heat also has the advan ⁇ tage that no movement of the stack has to take place since it is sufficient for the heat, which can be sup ⁇ plied in various ways, to reach the shrinkable plastic film.
  • the wrapping means is provided with two rolls of shrinkable plastic film arranged on opposite sides of the wrapping position.
  • This embodiment of the invention allows the stack to be wrapped in a simple way in the shrinkable plastic film when moving the stack to the receiving position.
  • said holder means comprises the first shrinking means.
  • the device according to the invention can advanta ⁇ geously comprise at least two receiving means, from which articles can alternately be moved on.
  • the num ⁇ ber of receiving means can be the same as the number of positions of the drum, or alternatively half this number.
  • the receiving means can be designed to receive different types of articles, such as lids of different dimensions, different geometries (for instance round, elliptic or square), different materials etc. In discharging, these different articles may in that case be separated, which makes it possible to use the packaging device for two or more parallel flows.
  • a method for packaging substantially rigid articles in a shrinkable packaging material comprising the steps of receiving a succession of articles arranged in a stack to a receiving position, wrapping packaging material around the stack, and shrinking the packaging material around the stack, the articles, during at least part of the wrapping and shrinking of the packaging mate ⁇ rial, being fixed so as to maintain a continuous stack.
  • the invention is applicable to packaging of articles of different types which have significant torsional rigi- dity and are stackable, such as lids, cans, food packages and other articles of consumption.
  • the invention is advantageous for more demanding articles, such as rigid, flat articles, articles with special reguirements as to cleanliness, for instance for use in the food industry, and/or articles which need to be packed and unpacked in automated processes.
  • An example of such a type of article is can lids for use in sealing of beverage cans and the like.
  • FIG. 1 is a schematic side view of a system compris ⁇ ing an embodiment of the invention
  • Fig. 2 is a schematic side view of a wrapping means according to an embodiment of the invention.
  • Fig. 3a is a schematic side view of a moving means 12 according to an embodiment of the invention.
  • Fig. 3b is another schematic view of the moving means 12 according to an embodiment of the invention.
  • Fig-. 4a is a schematic side view of a holder means according to an embodiment of the invention
  • Fig. 4b is another schematic side view of a holder means according to an embodiment of the invention
  • Fig. 5a is a schematic top plan view of an alterna ⁇ tive embodiment of a system according to the invention.
  • Fig. 5b is a side view of the system in Fig. 5a.
  • Fig. 1 shows a packaging device 1 designed accord ⁇ ing to an embodiment of the invention and comprising a receiving means 2 with a receiving position 3 for receiv- ing one of a plurality of articles 4 arranged in successive ⁇ sion in a stack 5.
  • the receiving means 2 preferably receives the articles 4 in an axial direction, for instance by the articles 4 being moved to the receiv ⁇ ing position 3 in a succession as a separated length of articles 4.
  • the articles 4 are already when arriving at the receiving position 3 arranged in a stack 5.
  • the articles 4 can advantageously be form-fitted to one another, as is the case with, for instance, plastic or metal lids.
  • a plurality of receiving means 2 and receiving positions 3 can be provided, from which the articles to be packaged are then alternately fed.
  • Fig. 1 shows an embodiment with two receiving means, but additional receiving means, such as four, can also be arranged.
  • Fig. 1 shows a transferring means ⁇ , which in this embodiment of the invention is arranged on a con ⁇ veyor or linear unit 7.
  • the transferring means 6 raises the stack 5 from the receiving position 3 of the receiv ⁇ ing means 2 to a wrapping means 8 for wrapping a packag ⁇ ing material 9 around the stack 5.
  • the packaging material 9 is wound on two rolls 10 and 11.
  • a preferred embodiment of the wrapping means 8 is further commented on in Fig. 2.
  • the wrapping means 8 is arranged adjacent to a moving means 12, in a preferred embodiment designed as a rotatable drum, which comprises at least one holder means 13 arranged to fix, during at least part of the packaging, by compressive force the two outermost articles 4 in the stack 5 and thus maintain a continuous stack 5.
  • the moving means 12 comprises four holder means 13. In this way, the moving means 12 can at the same time fix four stacks 5 and by rotation process the stacks in four different processing positions.
  • the capacity of the mov ⁇ ing means 12 can be varied by the number of holder means 13 and processing positions in other embodiments of the invention being fewer or more than four.
  • clockwise rotation of the moving means 12 occurs in steps, which moves the stack 5 from a wrapping position 14 to a first shrinking position 15, in which the packaging material 8 is shrunk by a first shrinking means 14 (not shown) around the ends of the stack 5.
  • the stack 5 is moved by further rotation of the moving means 12 on to a second shrinking position 16 where shrinkage of the packaging material 8 by a second shrinking means 17 occurs along the length of the stack.
  • the holder means of the drum can advantageously be adjusted to these articles, in which case each holder means is dedicated to a certain type of article.
  • the packaging material preferably is a shrinkable plastic film which is shrunk by being subjected to hot air, in this embodiment hot air from a hot air unit 18.
  • the packaging material can also be made of other mate- rials, such as paper, and shrinkage can occur in other ways than by hot air, for example mechanically.
  • the stack 5 of articles 4 is now completely packaged.
  • the moving means 12 now rotates to a fourth processing position where the fixing of the pack ⁇ aged stack performed by the holder means 13 ceases and a discharge means 19 discharges the stack from the packag ⁇ ing device 1.
  • Fig. 2 is a side view of a wrapping means 8 accord ⁇ ing to an embodiment of the invention comprising two rolls 10 and 11 of packaging material 9 from which rolls two ends of the packaging material 9 are unwound towards each other to a welding apparatus 20 comprising two sepa ⁇ rable weld jaws 21.
  • the packaging material 9 runs from the rolls 10 and 11 to the welding apparatus 20 via one or more wheels 22.
  • the weld jaws 21 are each provided with two welding means 23 between which a cutting means 24 is arranged.
  • the stack 5 to be wrapped in packaging material 9 is put down, according to the embodiment shown in Fig. 2, between the two separated weld jaws 21 from above, after which the packaging material 9 abuts against the underside and the sides of the stack 5.
  • the weld jaws are brought together and compress the pack ⁇ aging material 9 from the two rolls 10 and 11, after which the four welding means 23 in the two weld jaws pro- vide two parallel but separated weld joints of the pack ⁇ aging material 9, which joins the packaging material from the two rolls 10 and 11.
  • the cutting means 24 cuts the packaging material between the two weld joints, so that the stack 5 wrapped in packaging material 9 is released from the rolls 10 and 11.
  • the wrap ⁇ ping means 8 is again available to receive a new stack 5.
  • the thus described wrapping of packaging material 9 around a stack requires that the packaging material 9 from the two rolls 10 and 11 be already joined as the wrapping starts, which joining can be done by manually passing down packaging material 9 between the separated weld jaws 21, after which the weld jaws are pressed together and weldings and cutting as described above are performed.
  • Fig. 3a is a side view of a moving means 12 accord ⁇ ing to an embodiment of the invention comprising four holder means 13 suspended between two end walls 25 (of which one is to be seen) .
  • Fig. 3b is another side view of the same moving means 12 as in Fig. 3a comprising four holder means 13 (of which two are to be seen) , suspended between two end walls 25.
  • the end walls 25 are joined to a main shaft 26 which can be rotated by means of a motor 27.
  • Each holder means 13 is provided with two holder supports 28 which are slidable along the longitudinal axis of the moving means to be able to fix a stack 5.
  • the holder means 12 are articulated to the end walls 25 in such a manner that rotation of the main shaft 26 and the end walls 25 only causes movement of the individual holder means 13 without rotating them about their own longitudinal axis.
  • FIG. 4a is a side view of a holder means 13 accord ⁇ ing to an embodiment of the invention, the holder means 13 being provided with two stack supports 29 which are adapted to support a stack 5 during packaging of the same.
  • Fig. 4b is another side view of the holder means 13 according to Fig. 4a.
  • Fig. 4b also shows two holder sup ⁇ ports 28 belonging to the holder means and oriented towards one another, which are slidably arranged on the holder means by a slide means 30 each. Due to the slide means 30, the holder supports 28 are movable in the longitudinal direction of the holding means, which allows the holder supports 28 to be moved towards one another and thus fix the two outermost articles 4 in the stack 5 by compressive force. In this manner, the holder supports 28 can be moved towards one another and fix a stack 5 by a squeezing motion.
  • the holder supports 28 are each provided with a connecting means 31, to which a supply device for supplying hot air can be connected.
  • a supply device for supplying hot air can be connected.
  • the shrinkage of the packaging material 8 can be provided while the stack 5 is fixed between the holder supports 28.
  • the packaging device is prefer ⁇ ably arranged in an automated system, which automatically advances, for instance, can lids which are to be packag ⁇ ed, packages them in stacks and then moves the packaged stacks on, for instance for automated packaging on pallets.
  • Such a system is schematically shown in Figs 5a and 5b.
  • Fig. 5a and 5b In the semiautomatic alternative embodiment shown in Fig.
  • the wrap ⁇ ping means 108 is in this embodiment preferably adapted to insert the stacks essentially horizontally, so as to provide a more ergonomic working environment for the ope ⁇ rator, and are suitably fed via two film rolls 110, which can be arranged in a high and a low position, respective ⁇ ly.
  • a buffer table 102 can be provided, to which the articles to be packaged are preferably supplied con- tinuously.
  • a carriage or shuttle 103 can be pro ⁇ vided to separate stacks from the buffer table and supply them to be left in the wrapping means and the drum.
  • the manual supply of the articles that are to be packaged can be combined with automated palletizing of the completely packaged stacks. Alternatively, this can also take place manually, as will be discussed below. It is also possible to provide automated supply of the articles that are to be packaged, but manual palletizing of the completely packaged stacks. In automated palletizing, for instance the packaged stacks can be conveyed to palletizing equipment, such as the equipment disclosed in EP 1453749 and US 5769601 by the same applicant. These two documents are herewith incorporated by reference.
  • the packaged articles can be discharged in a discharge trough 130 from which they can be manually removed and arranged on a pallet 131.
  • moving device also relates to a type of device other than the drum illustrated in the drawings.
  • a moving device which uses linear motion, between processing positions, for instance in the form of a conveyor belt.
  • a receiving means which receives a plurality of articles by external propulsion, for instance in the form of a conveyor consisting of rotating wheels.
  • wrapping means which within the scope of the invention, for instance, can also be designed in the form of a slip-on device which slips on a packaging material at one side of the stack.
  • shrinking means can, within the scope of the invention, be designed in other ways, for instance in the form of a device for pulling out the packaging mate- rial in one direction, with subsequent shrinking in another direction.
  • the holder means can, within the scope of the invention, be designed in a different manner, for instance in the form of a grip or clamp.
  • motions performed by movable parts within the scope of the invention can be accomplished in various ways, for instance by means of linear motors, step motors, hydrau ⁇ lics, compressed air, gear wheels, chain or belt drive.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Of Special Articles (AREA)

Abstract

La présente invention concerne un dispositif d'emballage et un procédé d'emballage d'articles sensiblement rigides, tels que des couvercles de boîtes, dans une matière d'emballage rétractable. Le dispositif comprend un moyen de réception prévu pour recevoir une succession d'articles disposés en pile, jusqu'à une position de réception; un moyen d'enveloppement qui enroule la matière d'emballage autour de la pile; et un premier moyen de rétrécissement qui rétracte au moins une partie de la matière d'emballage autour de la pile. Le dispositif d'emballage comprend également au moins un moyen de retenue prévu avec deux supports de retenue qui sont prévus pour fixer, pendant au moins une partie de l'enveloppement de la matière d'emballage et de son rétrécissement, les deux articles situés le plus à l'extérieur de la pile, et pour conserver ainsi une pile continue.
PCT/SE2005/001769 2004-11-25 2005-11-25 Dispositif et procede d'emballage d'une rangee d'objets dans une feuille thermo-retractable Ceased WO2006057607A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0402867A SE0402867L (sv) 2004-11-25 2004-11-25 Förpackningsanordning för förpackning av ett flertal föremål i en gemensam förpackning
SE0402867-6 2004-11-25

Publications (1)

Publication Number Publication Date
WO2006057607A1 true WO2006057607A1 (fr) 2006-06-01

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412524A (en) * 1964-11-07 1968-11-26 Carl Gosta Nestell Apparatus for packing a number of objects arranged upon each other and forming a substantially cylindrical stack
US3491507A (en) * 1964-11-17 1970-01-27 Bank Of America National Trust Coin package forming method
US4020617A (en) * 1975-10-22 1977-05-03 Hans Sickinger Co. Heat shrink packaging machine
EP0248464A1 (fr) * 1986-06-03 1987-12-09 Thomassen & Drijver-Verblifa N.V. Installation pour emballer une rangée de couvercles
SE455935B (sv) * 1983-04-06 1988-08-22 Scan Coin Ab Sett vid forpackning av mynt samt krympfolie for utovning av settet
CA2239939C (fr) * 1993-03-16 2000-05-16 Lw Technologies, Inc. Appareil d'emballage sous pellicule thermoretrecissable
US20040011005A1 (en) * 2000-11-20 2004-01-22 Daoust James M. Log bander apparatus and method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3412524A (en) * 1964-11-07 1968-11-26 Carl Gosta Nestell Apparatus for packing a number of objects arranged upon each other and forming a substantially cylindrical stack
US3491507A (en) * 1964-11-17 1970-01-27 Bank Of America National Trust Coin package forming method
US4020617A (en) * 1975-10-22 1977-05-03 Hans Sickinger Co. Heat shrink packaging machine
SE455935B (sv) * 1983-04-06 1988-08-22 Scan Coin Ab Sett vid forpackning av mynt samt krympfolie for utovning av settet
EP0248464A1 (fr) * 1986-06-03 1987-12-09 Thomassen & Drijver-Verblifa N.V. Installation pour emballer une rangée de couvercles
CA2239939C (fr) * 1993-03-16 2000-05-16 Lw Technologies, Inc. Appareil d'emballage sous pellicule thermoretrecissable
US20040011005A1 (en) * 2000-11-20 2004-01-22 Daoust James M. Log bander apparatus and method

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SE0402867D0 (sv) 2004-11-25
SE0402867L (sv) 2006-05-26

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