EP0063235B1 - Method of packaging food products within an inert gas atmosphere in plastics cups with flexible covers - Google Patents
Method of packaging food products within an inert gas atmosphere in plastics cups with flexible covers Download PDFInfo
- Publication number
- EP0063235B1 EP0063235B1 EP82101979A EP82101979A EP0063235B1 EP 0063235 B1 EP0063235 B1 EP 0063235B1 EP 82101979 A EP82101979 A EP 82101979A EP 82101979 A EP82101979 A EP 82101979A EP 0063235 B1 EP0063235 B1 EP 0063235B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lid
- protective gas
- gas
- tear
- tongue
- 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.)
- Expired
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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
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B31/06—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzle being arranged for insertion into, and withdrawal from, the mouth of a filled container and operating in conjunction with means for sealing the container mouth
Definitions
- the invention relates to a method for packaging food under protective gas in a plastic cup with a flexible lid.
- Such methods are carried out in cycles and include the steps of product filling, protective gas purging, lid placement and lid welding.
- the inert gas purging is carried out in such a way that the inert gas, for example nitrogen, carbon dioxide or argon, is blown into the cup filled with product from above via one or more gas nozzles. It can be seen immediately that with this procedure large specific amounts of protective gas are required to fill the head space of the cup with protective gas.
- the cup filled with product usually has a head space of 50 to 100 ml, which is designed as a flat disc with a maximum height of 10 mm. Adequate gas exchange in this open headspace is only possible when flushing with shielding gas quantities that are a multiple of the headspace volume.
- a reduction in the shielding gas requirement can be achieved if the shielding gas is only flushed when the cover is already in place but not yet welded.
- Such a method is shown in DE-A-2 419 682.
- the lid is glued as a film onto a large number of flat rectangular containers by closing three sides of the respective container opening in a first step, while by means of a flat nozzle through the free side Inert gas is flushed into the container. In the next step, the empty container side is also closed. This method is limited to the use of foils for the production of the lids in the packaging process.
- US-A-3 360 382 shows a method for closing flat containers, in which prefabricated lids with a certain curvature are used.
- the invention is therefore based on the object of providing a method for packaging food under protective gas in a plastic cup, which is distinguished by a low specific protective gas consumption, prevents the penetration of atmospheric oxygen into the head space of the cup flushed with protective gas, and the use of non-pretreated Individual lids made of any material are permitted.
- the lid can be raised in a variety of ways.
- a procedure in which the lid tear-off tab slides over a wedge has proven itself well.
- the protective gas is preferably supplied through a hole in the thick wedge end.
- Another procedure for lifting the lid, which has proven itself in practice, is that the lid on the lid pull tab is raised by means of the gas nozzle for blowing in the protective gas.
- the gas nozzle is raised in the vertical direction and lowered again.
- Fig. 1 shows the links 1-7 of a conveyor belt with which the plastic cups 9-13 are cyclically transported to the individual work stations.
- the direction of conveyance is indicated by arrows 8.
- the metering device 14 for the product 15 to be filled is located above the plastic cup 12.
- a work station further away is the lid storage container 16 above the plastic cup 11.
- a cover 17 already lies on the plastic cup 11 here.
- purging takes place with protective gas, which is supplied through the gas nozzle 18.
- the lid 19 located on the plastic cup 10 is shown by a dashed line Line shown.
- the lid 19 is slightly raised from the edge of the plastic cup 10, on one side by the gas nozzle 18, on the other side by the escaping gas 20.
- the lid 19 is held by two hold-down devices, not shown in FIG Plastic cup 10 fixed.
- the last work station finally shows the plastic cup 9 with the lid 22, which is welded onto the edge of the plastic cup 9 with the aid of the welding head 21.
- the covers 17, 19 and 22 are preferably made of aluminum. Plastic lids can also be used.
- the rinsing of the head space of the cup 10 of FIG. 1 is shown enlarged according to the invention.
- the lid 19 is slightly raised on the lid pull tab 23 by an upward movement of the gas nozzle 18.
- the protective gas is then blown in, which is indicated by the arrows 24.
- the gas 20 escaping from the head space of the cup 10, ie air, mixed with protective gas, also lifts the lid 19 on the opposite side.
- the gas nozzle 18 is lowered and moved to the side so that the plastic cup 10 can be conveyed to the next work station in the next work cycle.
- the movement of the gas nozzle 18 in the vertical direction is represented by arrows 25, the lateral movement of the gas nozzle 18 by an arrow 26.
- the lateral movement of the gas nozzle 18 is superfluous when the protective gas is blown in from the side of the conveyor belt, ie 90 ° offset from the arrangement shown.
- two hold-downs 27 are used, the movement of which is indicated in the vertical direction by the arrows 28.
- the Fig.4 u. 5 show another embodiment of the invention: on the links 29, 30 u. 31 of a conveyor belt are the plastic cups 33, 34 u. 35.
- the direction of conveyance of the conveyor belt is indicated by arrows 32.
- On the plastic cups 33-35 are the aluminum covers 36, 37 u. 38.
- a fixed wedge 39 is used to lift the lid 37, which when the plastic cup 34 moves forward in the conveying direction is pushed under the lid pull tab 40 of the lid 37 and raises it slightly according to its thickness.
- the shielding gas 42 is blown in through a bore with feed pipe 41 in the thick end of the wedge 39.
- the escaping gas is represented by arrows 43. Fixing the lid 36, 37 u. 38 occurs in this process variant by spot welding 44, 45 and 46.
- the method according to the invention practically excludes that after purging with protective gas, oxygen from the environment again reaches the headspace of the plastic cup. This is also achieved with a small amount of protective gas that was previously not considered possible. In practical operation it has been shown that the protective gas consumption per cup is less than three times the headspace volume.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vacuum Packaging (AREA)
- Closing Of Containers (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Verpacken von Lebensmitteln unter Schutzgas in Kunststoffbecher mit flexiblem Deckel.The invention relates to a method for packaging food under protective gas in a plastic cup with a flexible lid.
Derartige Verfahren werden taktweise durchgeführt und umfassen die Arbeitsgänge Produktabfüllen, Schutzgasspülen, Deckelauflegen und Deckelverschweißen. Das Schutzgasspülen geschieht in der Weise, daß über eine oder mehrere Gasdüsen das Schutzgas, beispielsweise Stickstoff, Kohlendioxid oder Argon, von oben in den mit Produkt gefüllten Becher geblasen wird. Es ist unmittelbar einzusehen, daß bei dieser Verfahrensweise große spezifische Schutzgasmengen benötigt werden, um den Kopfraum des Bechers mit Schutzgas zu füllen. Der mit Produkt gefüllte Becher hat in der Regel einen Kopfraum von 50 bis 100 ml, der als flache Scheibe von maximal 10 mm Höhe ausgebildet ist. Ein ausreichender Gasaustausch in diesem offenen Kopfraum ist nur möglich, wenn mit Schutzgasmengen gespült wird, die ein Vielfaches des Kopfraumvolumens betragen. Diese Verfahrensweise ist daher allein schon vom Schutzgasbedarf her gesehen unbefriedigend. Als weiterer Nachteil kommt bei dieser Verfahrensweise hinzu, daß sich das Eindringen von Luftsauerstoff in den mit Schutzgas gefüllten Kopfraum nicht vermeiden läßt. Nach dem Spülen mit Schutzgas dauert es nämlich noch ca. 2 Sek., bis der Becher verdekkelt wird. Diese Leerlaufstandzeit führt zum erneuten Gasaustausch, der Sauerstoffgehalt steigt wieder an. Außerdem wird durch das Auflegen des Deckels noch zusätzlich Luft in den Kopfraum des Bechers gedrückt und eingeschlossen.Such methods are carried out in cycles and include the steps of product filling, protective gas purging, lid placement and lid welding. The inert gas purging is carried out in such a way that the inert gas, for example nitrogen, carbon dioxide or argon, is blown into the cup filled with product from above via one or more gas nozzles. It can be seen immediately that with this procedure large specific amounts of protective gas are required to fill the head space of the cup with protective gas. The cup filled with product usually has a head space of 50 to 100 ml, which is designed as a flat disc with a maximum height of 10 mm. Adequate gas exchange in this open headspace is only possible when flushing with shielding gas quantities that are a multiple of the headspace volume. This procedure is therefore unsatisfactory in terms of the shielding gas requirement alone. Another disadvantage of this procedure is that the ingress of atmospheric oxygen into the head space filled with protective gas cannot be avoided. After purging with protective gas, it takes about 2 seconds for the cup to become dirty. This idle time leads to renewed gas exchange, the oxygen content increases again. In addition, by putting the lid on, additional air is pressed into the head space of the cup and enclosed.
Eine Verringerung des Schutzgasbedarfs läßt sich erreichen, wenn erst dann mit Schutzgas gespült wird, wenn der Deckel bereits aufliegt, aber noch nicht verschweißt ist. Ein solches Verfahren zeigt die DE-A-2 419 682. Der Deckel wird hierbei als Folie auf eine Vielzahl von flachen rechteckigen Behältern geklebt, indem in einem ersten Schritt drei Seiten der jeweiligen Behälteröffnung geschlossen werden, während durch die freigebliebene Seite mittels einer flachen Düse Inertgas in den Behälter gespült wird. Im nächsten Arbeitsschritt wird auch die freigebliebene Behälterseite geschlossen. Dieses Verfahren ist auf die Verwendung von Folien zur Herstellung der Deckel beim Verpackungsvorgang beschränkt.A reduction in the shielding gas requirement can be achieved if the shielding gas is only flushed when the cover is already in place but not yet welded. Such a method is shown in DE-A-2 419 682. In this case, the lid is glued as a film onto a large number of flat rectangular containers by closing three sides of the respective container opening in a first step, while by means of a flat nozzle through the free side Inert gas is flushed into the container. In the next step, the empty container side is also closed. This method is limited to the use of foils for the production of the lids in the packaging process.
Dagegen zeigt die US-A-3 360 382 ein Verfahren zum Verschließen flacher Behälter, bei dem vorgefertigte Deckel mit einer bestimmten Krümmung verwendet werden.On the other hand, US-A-3 360 382 shows a method for closing flat containers, in which prefabricated lids with a certain curvature are used.
Dieses Verfahren ist somit auf bestimmte Deckelmaterialien beschränkt.This method is therefore limited to certain lid materials.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zum Verpacken von Lebensmitteln unter Schutzgas in Kunststoffbecher zu schaffen, welches sich durch einen geringen spezifischen Schutzgasverbrauch auszeichnet, das Eindringen von Luftsauerstoff in den mit Schutzgas gespülten Kopfraum des Bechers verhindert, und die Verwendung von nicht vorbehandelten Einzeldeckeln aus beliebigem Material gestattet.The invention is therefore based on the object of providing a method for packaging food under protective gas in a plastic cup, which is distinguished by a low specific protective gas consumption, prevents the penetration of atmospheric oxygen into the head space of the cup flushed with protective gas, and the use of non-pretreated Individual lids made of any material are permitted.
Bei einem Verfahren zum Verpacken von Lebensmitteln unter Schutzgas in Kunststoffbecher, die mit getrennt zuführbaren Deckeln mit Deckelaufreißlasche verschlossen werden, bei dem taktweise die Arbeitsgänge Produktabfüllen, Schutzgasspülen, Deckelauflegen und Dekkelverschweißen durchgeführt werden und das Schutzgasspüten bei etwas angehobenem und teilweise auf dem Becherrand fixierten Deckel erfolgt, indem durch den hierdurch gebildeten Spalt das Schutzgas eingeblasen wird, wird dies gemäß der Erfindung dadurch erreicht, daß der Deckel an der Deckelaufreißlasche angehoben wird.In a process for packaging food under protective gas in plastic cups, which are sealed with separately feedable lids with a lid pull tab, in which the steps of product filling, protective gas purging, lid fitting and lid welding are carried out and the inert gas is cleaned when the lid is slightly raised and partially fixed on the rim of the cup by blowing in the protective gas through the gap thus formed, this is achieved according to the invention in that the lid is lifted on the lid pull tab.
Das Anheben des Deckels kann auf vielfältige Weise erfolgen. Gut bewährt hat sich eine Verfahrensweise, bei der die Deckelabreißlasche über einen Keil gleitet. Wenn die Deckelabreißlasche das dicke Ende des Keils erreicht hat, ist der Deckel etwas angehoben. Vorzugsweise erfolgt hierbei die Schutzgaszufuhr durch eine Bohrung im dicken Keilende. Eine weitere Verfahrensweise zum Anheben des Deckels, die sich praktisch bewährt hat, besteht darin, daß der Deckel an der Deckelaufreißlasche mittels der Gasdüse zum Einblasen des Schutzgases angehoben wird. Die Gasdüse wird hierzu im Arbeitstakt in vertikaler Richtung angehoben und wieder abgesenkt.The lid can be raised in a variety of ways. A procedure in which the lid tear-off tab slides over a wedge has proven itself well. When the lid tear-off tab has reached the thick end of the wedge, the lid is raised slightly. The protective gas is preferably supplied through a hole in the thick wedge end. Another procedure for lifting the lid, which has proven itself in practice, is that the lid on the lid pull tab is raised by means of the gas nozzle for blowing in the protective gas. For this purpose, the gas nozzle is raised in the vertical direction and lowered again.
Zwei Ausführungsbeispiele der Erfindung sollen anhand der Zeichnungen erläutert werden.Two embodiments of the invention will be explained with reference to the drawings.
Es zeigt
- Fig. 1 ein Transportband mit Kunststoffbechern, teilweise im Schnitt, bei denen die Schutzgasspülung nach Anheben des Deckels mit der Gasdüse erfolgt,
- Fig. 2 einen Kunststoffbecher von Fig. 1 im Schnitt und in vergrößerter Einzeldarstellung im Augenblick des Schutzgasspülens,
- Fig. 3 eine Draufsicht auf Fig. 2, teilweise im Schnitt,
- Fig.4 ein Transportband mit Kunststoffbechern, bei denen das Anheben des Deckels durch einen Keil erfolgt, teilweise im Schnitt,
- Fig. 5 eine Draufsicht auf Fig. 4.
- 1 is a conveyor belt with plastic cups, partly in section, in which the protective gas is flushed after lifting the lid with the gas nozzle,
- 2 shows a plastic cup from FIG. 1 in section and in an enlarged individual illustration at the moment of inert gas purging,
- 3 is a plan view of FIG. 2, partly in section,
- 4 a conveyor belt with plastic cups, in which the lid is lifted by a wedge, partly in section,
- 5 is a top view of FIG. 4.
Fig. 1 zeigt die Glieder 1-7 eines Transportbandes, mit dem die Kunststoffbecher 9-13 taktweise zu den einzelnen Arbeitsstationen befördert werden. Die Förderrichtung ist durch Pfeile 8 angegeben. Über dem Kunststoffbecher 12 befindet sich die Dosiereinrichtung 14 für das abzufüllende Produkt 15. Eine Arbeitsstation weiter befindet sich über dem Kunststoffbecher 11 der Deckelvorratsbehälter 16. Ein Deckel 17 liegt hier bereits auf dem Kunststoffbecher 11 auf. In der nächsten Arbeitsstation erfolgt das Spülen mit Schutzgas, welches durch die Gasdüse 18 zugeführt wird. Der auf dem Kunststoffbecher 10 befindliche Deckel 19 ist durch eine gestrichelte Linie dargestellt. Der Deckel 19 ist vom Rand des Kunststoffbechers 10 leicht angehoben, und zwar auf der einen Seite durch die Gasdüse 18, auf der anderen Seite durch das entweichende Gas 20. Der Deckel 19 wird durch zwei in Fig. 1 nicht dargestellte Niederhalter auf dem Rand des Kunststoffbechers 10 fixiert. Die letzte Arbeitsstation zeigt schließlich den Kunststoffbecher 9 mit dem Deckel 22, der mit Hilfe des Schweißkopfes 21 auf den Rand des Kunststoffbechers 9 geschweißt wird.Fig. 1 shows the links 1-7 of a conveyor belt with which the plastic cups 9-13 are cyclically transported to the individual work stations. The direction of conveyance is indicated by
Die Deckel 17,19 und 22 bestehen vorzugsweise aus Aluminium. Es können aber auch Kunststoffdeckel verwendet werden.The
In den Fig. 2 u. 3 ist das Spülen des Kopfraumes des Bechers 10 von Fig. 1 gemäß der Erfindung vergrößert dargestellt. Der Deckel 19 wird an der Deckelaufreißlasche 23 durch eine Aufwärtsbewegung der Gasdüse 18 etwas angehoben. Danach wird das Schutzgas eingeblasen, was durch die Pfeile 24 angedeutet ist. Das aus dem Kopfraum des Bechers 10 entweichende Gas 20, also Luft, vermischt mit Schutzgas, hebt den Deckel 19 an der gegenüberliegenden Seite ebenfalls an. Nachdem genügend Schutzgas eingeblasen ist, wird die Gasdüse 18 abgesenkt und seitlich wegbewegt, so daß der Kunststoffbecher 10 im nächsten Arbeitstakt zur nächsten Arbeitsstation weiterbefördert werden kann. Die Bewegung der Gasdüse 18 in vertikaler Richtung ist durch Pfeile 25 dargestellt, die seitliche Bewegung der Gasdüse 18 durch einen Pfeil 26. Die seitliche Bewegung der Gasdüse 18 erübrigt sich, wenn das Einblasen des Schutzgases von der Seite des Transportbandes her erfolgt, also 90° versetzt gegenüber der dargestellten Anordnung. Zum Fixieren des Deckels 19 auf dem Rand des Bechers 10 dienen zwei Niederhalter 27, deren Bewegung in vertikaler Richtung durch die Pfeile 28 angedeutet ist.2 u. 3, the rinsing of the head space of the
Die Fig.4 u. 5 zeigen eine andere Aüsführungsform der Erfindung: Auf den Gliedern 29, 30 u. 31 eines Transportbandes befinden sich die Kunststoffbecher 33, 34 u. 35. Die Förderrichtung des Transportbandes wird durch die Pfeile 32 angegeben. Auf den Kunststoffbechern 33-35 befinden sich die Aluminiumdeckel 36, 37 u. 38. Die mittlere Arbeitsstation, in welcher sich der Kunststoffbecher 34 befindet, zeigt das Anheben des Deckels 37 und Spülen mit Schutzgas gemäß der Erfindung. Zum Anheben des Deckels 37 dient ein feststehender Keil 39, der sich beim Vorwärtsbewegen des Kunststoffbechers 34 in Förderrichtung unter die Deckelaufreißlasche 40 des Deckels 37 schiebt und diesen entsprechend seiner Dicke etwas anhebt. Durch eine Bohrung mit Zufuhrstutzen 41 im dicken Ende des Keils 39 wird das Schutzgas 42 eingeblasen. Das entweichende Gas ist durch Pfeile 43 dargestellt. Das Fixieren der Deckel 36, 37 u. 38 geschieht bei dieser Verfahrensvariante durch Punktschweißungen 44,45 und 46.The Fig.4 u. 5 show another embodiment of the invention: on the
Das erfindungsgemäße Verfahren schließt praktisch aus, daß nach dem Spülen mit Schutzgas wieder Sauerstoff aus der Umgebung in den Kopfraum der Kunststoffbecher gelangt. Dies wird zudem mit einer bisher nicht für möglich gehaltenen geringen Schutzgasmenge erreicht. Im praktischen Betrieb hat sich gezeigt, daß der Schutzgasverbrauch pro Becher weniger als das Dreifache des Kopfraumvolumens beträgt.The method according to the invention practically excludes that after purging with protective gas, oxygen from the environment again reaches the headspace of the plastic cup. This is also achieved with a small amount of protective gas that was previously not considered possible. In practical operation it has been shown that the protective gas consumption per cup is less than three times the headspace volume.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82101979T ATE14556T1 (en) | 1981-04-03 | 1982-03-12 | METHOD OF PACKAGING FOOD UNDER ARTICULATED GAS IN PLASTIC CUP WITH FLEXIBLE LID. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3113445A DE3113445C2 (en) | 1981-04-03 | 1981-04-03 | Process for packaging food under protective gas in plastic cups |
DE3113445 | 1981-04-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0063235A2 EP0063235A2 (en) | 1982-10-27 |
EP0063235A3 EP0063235A3 (en) | 1983-05-04 |
EP0063235B1 true EP0063235B1 (en) | 1985-07-31 |
Family
ID=6129224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82101979A Expired EP0063235B1 (en) | 1981-04-03 | 1982-03-12 | Method of packaging food products within an inert gas atmosphere in plastics cups with flexible covers |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0063235B1 (en) |
AT (1) | ATE14556T1 (en) |
DE (1) | DE3113445C2 (en) |
ES (1) | ES8303226A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3625081A1 (en) * | 1986-07-24 | 1988-02-04 | Lieder Maschinenbau Gmbh & Co | METHOD AND DEVICE FOR THE PRESERVATION OF GOODS INCLUDED IN A CONTAINER |
FR2614005B1 (en) * | 1987-04-15 | 1989-10-13 | Bresse Bleu Ste Laitiere Coop | APPARATUS FOR INJECTING NEUTRAL GAS INTO TRAYS, IN PARTICULAR OF FOOD PRODUCTS |
DE3912153C1 (en) * | 1989-04-13 | 1990-08-02 | Christoph V. Dr.Rer.Nat. Stein | Preventing deterioration of solns. by oxidn. - by feeding solns. in containers from which air has been expelled by injected protective gas |
IT1249157B (en) * | 1991-01-08 | 1995-02-18 | Ugo Campa | PROCEDURE FOR STERILIZING VIVES AND FOODS PREPARED IN CONTAINERS SUITABLE FOR CONSUMPTION AND / OR FOR STORAGE WITHOUT THE USE OF COLD, AS WELL AS MEANS THAT REALIZE THE HERMETIC AND AUTOMATIC CLOSURE OF THEMSELVES |
DE4304337A1 (en) * | 1993-02-13 | 1994-08-25 | Gea Finnah Gmbh | Method and device for filling and closing a double chamber cup made of plastic |
FI98614C (en) * | 1995-06-13 | 1997-07-25 | Upm Kymmene Oy | Method for use in closing a liquid package |
JP6878517B2 (en) * | 2019-08-02 | 2021-05-26 | メロディアン株式会社 | Manufacturing method of subdivided container containing cooking oil |
CN112591175B (en) * | 2020-12-04 | 2023-11-14 | 杭州中亚机械股份有限公司 | Film uncovering mechanism |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1257114A (en) * | 1960-02-16 | 1961-03-31 | Polyvalente Des Plastiques Soc | Plastic film wrapping machine |
US3360382A (en) * | 1965-12-27 | 1967-12-26 | Scientific Atlanta | Method of packaging meat |
GB1451662A (en) * | 1973-05-07 | 1976-10-06 | Grace W R & Co | Packaging apapratus and method |
DE2430497B2 (en) * | 1974-06-25 | 1981-05-21 | Krämer & Grebe GmbH & Co KG Maschinen- und Modellfabrik, 3560 Biedenkopf | Device for packing goods |
-
1981
- 1981-04-03 DE DE3113445A patent/DE3113445C2/en not_active Expired
-
1982
- 1982-03-12 AT AT82101979T patent/ATE14556T1/en not_active IP Right Cessation
- 1982-03-12 EP EP82101979A patent/EP0063235B1/en not_active Expired
- 1982-04-02 ES ES511113A patent/ES8303226A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3113445A1 (en) | 1982-10-21 |
EP0063235A3 (en) | 1983-05-04 |
ATE14556T1 (en) | 1985-08-15 |
ES511113A0 (en) | 1983-02-16 |
ES8303226A1 (en) | 1983-02-16 |
DE3113445C2 (en) | 1986-01-09 |
EP0063235A2 (en) | 1982-10-27 |
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