Method and apparatus for packaging a liquid food product
Abstract
This record has no abstract on file.
Term
2.8 yearsto projected expiry
Projected expiry 2 July 2029, counted from filing; an application has no term until it is granted.
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23 claims: 2 independent, 21 dependent
- 1Zastrzeżenia patentowe:1. Sposób dostarczania wcześniej określonej objętości napoju do termoplastycznego pojemnika wytworzonego z ogrzanej preformy, a preforma jest umieszczona w formie, sposób obejmujący etap wstrzykiwania co najmniej pewnej objętości napoju do wnęki w preformie dla przyczyniania się do rozszerzania preformy wewnątrz formy, formy określającej kształt pojemnika, wzdłużnego przemieszczenia rozciągającego pręta (10) prowadzonego przez dany cykl zapewniającego wzdłużne wydłużenie ogrzanej preformy, rozciągający pręt jest nieruchomy na końcu tego cyklu, znamienny tym, że objętość napoju większa niż 50% wcześniej określonej objętości znajduje się we wnęce na końcu tego cyklu.
- 2Sposób według zastrzeżenia 1, znamienny tym, że przemieszczanie i wstrzykiwanie są kontrolowane przez urządzenie produkcyjne wspomagane komputerem.
- 3Sposób według jednego z zastrzeżeń 1 do 2, znamienny tym, że przemieszczanie i wstrzykiwanie są kontrolowane za pomocą krzywki.
- 4Sposób według jednego z zastrzeżeń 1 do 3, znamienny tym, że, podczas etapu wstępnego ogrzewania, temperaturę preformy doprowadza do między 50°C a 130°C.
- 5Sposób według zastrzeżenia 4, znamienny tym, że, podczas etapu wstępnego ogrzewania, temperaturę preformy doprowadza się do między 75°C a 100°C.
- 6Sposób według jednego z zastrzeżeń 1 do 5, znamienny tym, że szybkość rozciągającego pręta (10) osiągana podczas jego przemieszczania wynosi między 0,5 a 3,0 m/s.
- 7Sposób według jednego z zastrzeżeń 1 do 6, znamienny tym, że szybkość rozciągającego pręta (10) osiągana podczas jego przemieszczania wynosi między 1 a 2,5 m/s.
- 8Sposób według jednego z zastrzeżeń 1 do 7, znamienny tym, że, podczas etapu wstrzykiwania, objętość napoju ma temperaturę między 1°C a 120°C.
- 9Sposób według zastrzeżenia 8, znamienny tym, że, podczas etapu wstrzykiwania, objętość napoju ma temperaturę między 10°C a 90°C.
- 10Sposób według jednego z zastrzeżeń 1 do 9, znamienny tym, że stopień rozciągnięcia wzdłużnego preformy, zmierzony między początkiem a końcem etapu wstrzykiwania, wynosi między 2 a 5.
- 11Sposób według zastrzeżenia 10, znamienny tym, że stopień rozciągnięcia wzdłużnego preformy, zmierzony między początkiem a końcem etapu wstrzykiwania, wynosi między 2,5 a 4.
- 12Sposób według jednego z zastrzeżeń 1 do 11, znamienny tym, że stopień rozciągnięcia promieniowego preformy, zmierzony między początkiem a końcem etapu wstrzykiwania, wynosi między 2 a 7.
- 13Sposób według zastrzeżenia 12, znamienny tym, że stopień rozciągnięcia promieniowego preV8129PL00/HJ EP 2 313 249 B1 formy, zmierzony między początkiem a końcem etapu wstrzykiwania, wynosi między 3 a 4,5.
- 14Sposób według jednego z zastrzeżeń 1 do 13, znamienny tym, że termoplastyczny materiał jest wybrany spośród grupy składającej się z politereftalanu etylenu, polipropylenów, polietylenów, poliwęglanów, polistyrenów, kwasów polimlekowych, chlorków poliwinylu, oraz ich kombinacji.
- 15Sposób według jednego z zastrzeżeń 1 do 14, znamienny tym, że obejmuje etap wstępnego wstrzykiwania gazu dla przyczyniania się do rozszerzania preformy tak, że objętość preformy doprowadza się do wcześniej określonej części wcześniej określonej objętości.
- 16Sposób według zastrzeżenia 15, znamienny tym, że taka wcześniej określona część jest równa 70% wcześniej określonej objętości.
- 17Sposób według zastrzeżenia 15 albo zastrzeżenia 16, znamienny tym, że po etapie wstępnego wstrzykiwania gazu następuje etap wstrzykiwania napoju co powoduje rozszerzanie preformy aż preforma osiągnie wcześniej określoną objętość.
- 18Sposób według jednego z zastrzeżeń 1 do 17, znamienny tym, że najpierw formę doprowadza się do temperatury wynoszącej co najmniej 50°C poniżej temperatury topnienia termoplastycznego materiału.
- 19Sposób według jednego z zastrzeżeń 1 do 18, znamienny tym, że ponadto obejmuje kolejny etap mocowania zamykającej nakrętki na pojemniku.
- 20Sposób według zastrzeżenia 19, znamienny tym, że etap wstrzykiwania co najmniej pewnej ilości napoju obejmuje wstrzykiwanie objętości napoju do której wcześniej wprowadzono gaz dla wytworzenia nadciśnienia w szyjce pojemnika po zamocowaniu zamykającej nakrętki.
- 21Sposób według jednego z zastrzeżeń 1 do 20, znamienny tym, że wzdłużne przemieszczenie pręta prowadzi się ze stałą szybkością.
- 22Sposób według jednego z zastrzeżeń 1 do 21, znamienny tym, że wstrzykiwanie następuje poprzez dyszę mającą głowicę w kształcie dzwonu, co zmniejsza ryzyko deformowania szyjki preformy.
- 23Urządzenie do dostarczania wcześniej określonej objętość napoju do termoplastycznego pojemnika wytworzonego z ogrzanej preformy, preforma jest umieszczona w formie, urządzenie obejmujące elementy do wstrzykiwania co najmniej pewnej ilości napoju do wnęki w preformie dla przyczyniania się do rozszerzania preformy wewnątrz formy, formy definiującej kształt pojemnika, elementy do wzdłużnego przemieszczania rozciągającego pręta (10) w danym cyklu i do wzdłużnego wydłużania ogrzanej preformy, rozciągający pręt jest nieruchomy na końcu danego cyklu, znamienne tym, że ma elementy zapewniające że objętość napoju większa niż 50% wcześniej określonej objętości znajduje się we wnęce na końcu danego cyklu. Pełnomocnik:V8129PL00/HJ EP 2 313 249 B1 V8129PL00/HJ EP 2 313 249 B1 V8129PL00/HJ EP 2 313 249 B1 V8129PL00/HJ EP 2 313 249 B1 V8129PL00/HJ EP 2 313 249 B1 V8129PL00/HJ EP 2 313 249 B1 ODNOŚNIKI CYTOWANE W OPISIE Poniższa lista odnośników cytowanych przez zgłaszającego ma na celu wyłącznie pomoc dla czyt ającego i nie stanowi części dokumentu patentu europejskiego. Pomimo, że dołożono największej staranności przy jej tworzeniu, nie można wykluczyć błędów lub przeoczeń i EUP nie ponosi żadnej odpowiedzialności w tym względzie. Dokumenty patentowe cytowane w opisie • EP 1529620 A [0008]
Independent claims23
88 paragraphs in 5 sections, as filed
[0001] The present invention relates to the field of producing containers made of a polymeric material, in particular polyester. More specifically, it relates to the field of making polyester bottles, and preferably bottles of polyethylene terephthalate (PET) containing a liquid, preferably water, especially mineral water.
BACKGROUND OF THE INVENTION [0002] For many years, PET bottles commonly found on the market have been made using the blow molding or stretch blow molding technique using PET preforms using compressed air.
[0003] Typically, the preform is in the form of a cylindrical tube closed at one end and open at the opposite end. The open head of the preform corresponds to the neck of the container. During the conventional process of making containers from preforms, the preforms are slid into the cylindrical forms of a continuous chain conveyor that transports the preforms through a furnace, essentially formed by a straight section limited on each side by radial heating elements, preparing the plastic in terms of temperature for the next blow molding step from stretching.
[0004] Next, the hot preform is removed and transferred to the mold of a blow molding apparatus. The conveying movement conducted, for example by means of a conveying arm, is coordinated with the movement of the blow molding device, which is generally in the form of a rotating carousel that rotates continuously around its vertical axis and has a series of identical forms on the periphery. Thus, the preform is placed in the mold immediately after it is opened and the previously formed container is removed.
[0005] Previously, the preform was heated so that the mold was at a temperature above the glass transition temperature (about 100 ° C) to allow it to stretch blow molding. The temperature of the preform at the end of the heating step is slightly above the temperature required inside the mold of the blow molding machine so as to take into account the cooling that occurs at the distance between the heating site and the stretch blowing site. Due to the simultaneous presence of several molds, such a blow molding device can produce containers at very high speeds, about several tens of thousands of units per hour, i.e. about 1,000 to 2,000 bottles per hour per mold.
[0006] The stretch blow molding occurs by stretching with me<sub>5</sub> tall rod and pressurized air injection in the range of 3 to 40 bar (3 χ 10 Pa to 4 χ 10<sup>6</sup> Pa). Air is injected through a nozzle, the end of which is inserted through the hole in the head of the preform.
[0007] Bottles produced by compressed air injection have a relatively suitable shelf life. However, the internal properties and parameters of PET, in particular its tensile crystallization property, means that even better results can be predicted by modifying the container manufacturing process. In particular, it is known that high crystallinity means better mechanical strength.
[0008] EP - 1 529 620 is a European patent application that discloses a method of delivering a predetermined volume of a drink inside a thermoplastic container formed from
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EP 2 313 249 B1 preheated preform placed in the mold. Further disclosed is the step of injecting liquid into the preform to cause it to expand. The vertical expansion of the preform is carried out by means of a stretching rod. Then, there is time for liquid injection to horizontally expand the preform towards the mold walls.
[0009] The present invention makes it possible to extend the average shelf life of containers for normal transport, distribution and consumption. In addition, it enables the acceleration of the industrial production process by optimizing the production stages and minimizing losses on the production line.
[0010] In general, the invention preferably applies to the class of polyesters, in particular to PET.
Brief description of the invention [0011] In the above-mentioned context, the applicant proposes a method of delivering a predetermined volume of the drink inside a thermoplastic container made of a heated preform, a preform that is, for example, approximately cylindrical and is placed in a mold, and the method includes an injection step of at least some the amount of drink into the cavity in the preform to cause the preform to expand within the mold, the mold defining the shape of the container, longitudinal displacement of the tensile rod guided in a given cycle ensuring the longitudinal extension of the heated preform, the tensile rod is stationary at the end of this cycle, and a volume of beverage greater than 50% of the predetermined volume is in the cavity at the end of this cycle.
[0012] Such a method makes it possible to improve the quality of the containers obtained. Generally, the condition that the bottle-filling plunger perform more than half of its total movement when stretching stops is a sine qua non condition to prevent the bottle from exploding in the mold.
[0013] According to a preferred feature, the volume of the drink greater than 75%, the predetermined volume is in the cavity at the end of the given cycle.
[0014] The containers obtained using this method have much better characteristics than bottles obtained by a conventional blow molding method using a gaseous inflating fluid. In particular, it was found that for a given weight and type of material, they have a longer shelf life. In particular, the degree of crystallinity, i.e. the mass of the crystalline phase relative to the mass of the polymer, can be much higher for the container obtained by the method of the present invention.
[0015] According to one embodiment of the invention, displacement and injection are controlled by a computer-assisted production device.
[0016] Alternatively and optionally in combination, displacement and injection are controlled by means of a cam.
[0017] According to a preferred feature, during the pre-heating step, the temperature of the preform is adjusted to between 50 ° C and 130 ° C, or even to between 75 ° C and 100 ° C.
[0018] Preferably, the speed of the stretching rod obtained during its movement is between 0.5 and 3.0 m / s, or even between 1 and 2.5 m / s.
[0019] According to a preferred feature, during the injection step, the volume of the drink has a temperature between
1 ° C and 120 ° C, or even has a temperature between 10 ° C and 90 ° C.
[0020] Preferably, the condition for the longitudinal extent of stretching of the preform measured between the beginning and end of the injection step is that it is between 2 and 5, or between 2.5 and 4.
[0021] Furthermore, according to another embodiment, the radial degree of stretching of the mold, measured between
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At the beginning and end of the injection step, it is between 2 and 7, or even between 3 and 4.5.
[0022] It should be emphasized that the invention is best utilized when the thermoplastic material is selected from the group consisting of polyethylene terephthalate, polypropylenes, polyethylenes, polycarbonates, polystyrenes, polylactic acids, polyvinyl chloride, and combinations thereof.
[0023] Preferably, the method further comprises the step of injecting pre-gas to cause the preform to expand so that the volume of the preform is brought to a predetermined portion, preferably 70%, of the predetermined volume.
[0024] Preferably, the pre-gas injection step is followed by a drink injection step to cause the preform to expand until such a preform reaches a predetermined volume.
[0025] This is because the air is not able to cool the expandable thermoplastic material as much as the drink. For this reason, such properties give the advantage of a more stable process and a wider window for the applications of this method.
[0026] According to a preferred feature, the mold is initially brought to a temperature of at least 50 ° C below the melting point of the thermoplastic material.
[0027] The method of the present invention may also include a further step of attaching the closing cap to the container.
[0028] In such a case, the step of injecting at least a certain amount of the drink preferably comprises injecting a volume of the drink in which gas has previously been introduced to cause a pressure in the neck of the container after attaching the closing cap.
[0029] Finally, in one aspect, longitudinal rod travel is performed at a constant speed.
[0030] Furthermore, the invention is implemented through a nozzle having a bell-shaped head, which reduces the risk of deforming the preform neck.
[0031] The invention also provides a device for delivering a predetermined volume of beverage into a thermoplastic container made of a heated preform, a preform being approximately cylindrical in shape and placed in a mold, the device includes means for injecting at least some of the drink into a cavity in the preform causing the preform to expand. inside the mold, the form that determines the shape of the container, elements for longitudinal displacement of the stretching rod in a given cycle and for longitudinal extraction of the heated preform, the stretching rod is stationary at the end of the given cycle, and elements for ensuring that a volume of the beverage greater than 50% is in the cavity at the end of the given cycle.
[0032] Preferably, such a device may include means suitable for carrying out the intended intended method steps, taken separately or in combination.
Brief Description of the Drawings [0033] The invention will now be described with reference to the attached figures, which relate to exemplary embodiments of the invention.
Figure 1 shows the monitoring of mineral water bottle production according to an example of the prior art. Figure 2 shows the crystallinity scale used in relation to the method of the present invention.
Figure 3 is a general diagram of the installation used.
Figure 4 shows monitoring of the production of a mineral water bottle according to a preferred embodiment of the present invention.
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EP 2 313 249 B1
Figure 5 shows another aspect of the invention.
Detailed description of the invention [0034] The embodiment of the present invention exemplified herein relates to a method for producing PET bottles with mineral water from a heated preform. The preform has the shape of a cylindrical tube closed at the lower end. The open head of the preform corresponds to the throat, or neck, of the bottle on which the closing cap is screwed.
[0035] Figure 1 shows the changes in time of the position 1 of the stretching rod and the air pressure 2 in the expandable preform according to the state of the art.
[0036] In this figure, the x axis represents time and the y axis on the left represents the linear position of the stretching cam, while the y axis on the right represents the air pressure in the expandable preform.
[0037] During the first phase 4 of the process, in particular between 50 ms and 275 ms, the tensile rod moves linearly at approximately constant speed.
[0038] 320 ms after the start of the process (reference number 3), the extension rod reached its final position Pf, from which it no longer moves.
[0039] During the first part 4a of the first phase of the process, the air pressure 2 in the preform, initially equal to atmospheric pressure Pa and remaining up to 150 ms until the start of the process, increases up to a value of about 1.4 times atmospheric pressure, which value reaches in 200 ms from the start of the process.
[0040] During the second part 4b of the first phase of the process for a further 100 ms, i.e. up to 300 ms from the start of the process, the pressure remains constant.
[0041] During the second phase 5 of the process, the pressure increases rapidly, with an approximately constant growth rate, up to 450 ms when it reaches a value of about 8 times atmospheric pressure.
[0042] From this element, the pressure in the expanding preform slightly decreases, although it still remains on the order of 8 times atmospheric pressure.
[0043] In addition, and without wishing to be bound by any scientific theory, it is known that polyester preforms are amorphous and that their stretching causes crystallization and an exothermic reaction at the same time. Transforming the head is detrimental to the development of crystallinity.
[0044] With reference to Figure 2, the first stretching is carried out with the help of a stretching rod, causing crystallization and transformation of the head, and at this point incompressible fluid is introduced, which then absorbs the released heat and shifts the crystallinity equilibrium point obtained in the finished container towards high values , preferably between 30 and 35%.
[0045] The crystallinity is measured on a Lloyd-Davenport density column by the following method.
The column is filled with a salty (calcium nitrate) solution with a density gradient. The column is calibrated with balls having a known density between 1.335 and 1.455. Then, small pieces of the container according to the present invention are immersed in the column, and after a certain period of time they stabilize in the column at a certain height, corresponding to a certain density. Measurements are carried out at 23 ° C. The table shows crystallinity.
[0046] With reference to Figure 3, the stretching rod 10 is inserted into the compressed air actuator 15. The stretching rod 10 is controlled by a stretching motor which gives it longitudinal movement (shown by an arrow).
[0047] The compressed air actuator 15 includes a cylinder 17 for controlling the injection head V8129EN00 / HJ
The injection head 18 through which the stretching rod 10 passes. The injection head 18 is connected to the neck of the PET preform placed in a mold (not shown), which, after being expanded, takes the shape of a bottle of mineral water, and this the shape is determined by the walls of the mold.
[0048] The actuator has three chambers, the upper two chambers 15a and 15b are filled with compressed air. Between these two upper chambers, the wall 19 of the piston slides in a direction parallel to the stretching rod (displacement is shown by an arrow). The stretching rod 10 passes through the center of this wall 19.
[0049] The compressed air actuator also has a lateral inlet 30 for a drink, here mineral water, connected to the third chamber 15c of the actuator, which is the lower chamber. The drink is introduced through line 32.
[0050] The external mineral water inlet feeds the liquid through the distal end of this line 32 the first valve
34, which is connected to the bore of a single-chamber filling cylinder 40 including a piston 42 controlled by a filling engine (whose movement is represented by an arrow). This engine imparts longitudinal movement to the piston in a single filling chamber of the cylinder 40.
[0051] On line 32 there is a second valve 36 which is arranged in series after the first valve 34 and the opening of the filling cylinder 40. Then the line 32 runs to the lower chamber 15c of the compressed air actuator 15.
[0052] The lower chamber 15c of the compressed air actuator penetrates the cylinder 17 for controlling the filling head 18, the internal volume of which appears through the lower outlet of the compressed air actuator 15 in the filling head 18. The control cylinder has a side opening allowing circulation of the drink between the lower chamber of the device inducing compressed air and inside the control cylinder.
[0053] The stretching rod 10 itself passes through the control cylinder 17 as far as the filling head 18 and neck 20 of the bottle preform.
[0054] Figure 4 shows the changes in time of position 101 of the stretching rod and position 102 of the filling device by regulating the influence of mineral water into the expanded preform.
[0055] The horizontal axis represents time, the vertical axis on the left represents the position of the stretching rod and the vertical axis on the right represents the volume of water introduced into the expanded preform that is proportional to the position of the filling causing device.
[0056] During the first part of the process, from 0 to 250 ms, the tensile rod moves at a substantially constant speed, according to a preferred embodiment.
[0057] However, according to another preferred embodiment, during the first phase 110 of the process, in particular from 0 to 150 ms, the tensile rod moves at increasing speed due to positive acceleration. During the second phase 115 of the process, from 150 ms to 250 ms, the tensile rod moves with negative acceleration, the speed decreases to a value of zero for 250 ms. However, it is understood that the rate changes must be mild enough to ensure regular and reliable stretching of the thermoplastic material.
[0058] 250 ms from the start of the process (reference 103), the stretching rod reaches its final position
Pf, from which he no longer moves.
[0059] At the same time, the filling induction device introduced a volume V1 of mineral water into the expanded preform. The volume introduced since the start of the process (between 0 ms and 250 ms) gradually increases, with a gradual increase in the flow rate (acceleration of moving the device)
Filling induction).
[0060] During the subsequent movements, which constitute the third phase 120 of the process, up to 320 ms, the total volume of water introduced is constant, the flow rate is constant. Then, the volume suddenly decreases by a small part (about 4%) over a period of 40 ms.
[0061] From this point on, the total introduced volume stabilizes around the V2 value, which is finally obtained after a few fluctuations, the flow rate of the introduced liquid is zero.
[0062] At a few later moments, starting from 450 ms from the start of the process (reference 104), the filling induction device reaches its final position from which it no longer moves. At this point, a volume V2 of mineral water is introduced into the expanded preform. The volume of V2 is greater than V1 but less than two volumes of V1.
[0063] During the method of using the device described, the temperature of the preform is brought to a value between 50 ° C and 130 ° C, or even between 75 ° C and 100 ° C. In a preferred embodiment, this value is 85 ° C.
[0064] In general, a bottle is defined as having high quality based on the fact that it did not explode in form.
[0065] Tests carried out have shown that it is not possible to make a full bottle unless it has physically reached 50% of its final volume at the end of the stretching action.
[0066] During the method of using the described device, the temperature of the preform is adjusted to between 50 ° C and 130 ° C, or even between 75 ° C and 100 ° C. In a preferred embodiment of the invention, this value is 95 ° C and the plastic used is PET.
-1 -1 [0067] The rod has a speed between 0.5 and 3.0 m / s<sup>-1</sup>, or even between 1.0 and 5 m / s<sup>-1</sup>. In a preferred embodiment, this value is 1.6 m / s<sup>-1</sup>.
[0068] Earlier, the temperature of the beverage is adjusted to a value between 1 ° C and 120 ° C, and preferably between 10 ° C and 90 ° C. In a preferred embodiment, this value is 30 ° C.
[0069] The longitudinal degree of stretching of the thermoplastic material is between 2 and 5, or even between 2.5 and 4. In a preferred embodiment, this value is 3.5.
[0070] The radial stretch ratio of the thermoplastic material is between 2 and 7, or even between 3 and 4.5. In a preferred embodiment, this value is 4.
[0071] The thermoplastic material is selected from the group consisting of polyethylene terephthalate, polypropylenes, polyethylenes, polycarbonates, polystyrenes, polylactic acids, polyvinyl chlorides, and combinations thereof. In a preferred embodiment, it is PET.
[0072] The mold temperature is at least 50 ° C below the melting point of the thermoplastic material, which is 230 ° C for PET. Preferably, this temperature is kept below 100 ° C. In a preferred embodiment, the mold temperature is equal to the ambient temperature.
[0073] With reference to Figure 5, it shows an end piece of bell-shaped nozzle 500 in accordance with a preferred embodiment of the invention. The internal and external pressure or on the side of the preform neck circumference (i.e. on the outer surfaces of the neck 510 and on the inner surfaces of the neck 520) are identical, allowing a corridor 505 connecting volumes on both sides of the circumference inside the nozzle. During filling, closures are provided through collar 530 on the preform. Thanks to this device, there is no risk of deforming the preform neck when pressurized fluid is injected through the nozzle.
[0074] According to another embodiment of the invention, the end piece of the nozzle has outer surfaces 510
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The preform neck defined in such a way that when fluid under pressure is injected from the top of the die into the preform cavity, the pressure exerted on the inner walls 520 of the preform neck by the fluid is compensated by forming a bell-shaped final piece of nozzle. Therefore, the neck of the preform is not deformed, despite the high pressure.
[0075] Of course, the invention is not limited to the embodiments described and illustrated in the accompanying drawings; but extends to all variations that can be anticipated by one of ordinary skill in the art and falls within the scope of the claims.
Contents5
22 members in 11 offices
Priority claims8
| Document | Office | Kind | Date |
|---|---|---|---|
| 08159855 | European Patent Office (EPO) | A | |
| 08159855 | European Patent Office (EPO) | A | |
| 09793923 | European Patent Office (EPO) | A | |
| 2009058306 | European Patent Office (EPO) | W | |
| 2009058306 | European Patent Office (EPO) | W | |
| EP20080159855 | – | – | – |
| EP20090793923 | – | – | – |
| WO2009EP58306 | – | – | – |
Members22
| Document | Office | Kind | |
|---|---|---|---|
| EP2143544A1 | European Patent Office (EPO) | A1 | |
| WO2010003872A1 | World Intellectual Property Organization (WIPO) | A1 | |
| MX2011000204A | Mexico | A | |
| EP2313249A1 | European Patent Office (EPO) | A1 | |
| US2011094186A1 | United States of America | A1 | |
| CN102089141A | China | A | |
| JP2011527245A | Japan | A | |
| HK1156912A1 | Hong Kong, China | A1 | |
| RU2011104080A | Russian Federation | A | |
| EP2313249B1 | European Patent Office (EPO) | B1 | |
| ES2423290T3 | Spain | T3 | |
| PL2313249T3This record | Poland | T3 | |
| RU2502598C2 | Russian Federation | C2 | |
| US8720166B2 | United States of America | B2 | |
| CN102089141B | China | B | |
| US2014205707A1 | United States of America | A1 | |
| CN104228041A | China | A | |
| US8944805B2 | United States of America | B2 | |
| JP5694155B2 | Japan | B2 | |
| BRPI0915810A2 | Brazil | A2 | |
| CN104228041B | China | B | |
| BRPI0915810B1 | Brazil | B1 |
Numbers
- Publication, DOCDB
- 2313249
- Publication, EPODOC
- PL2313249T
- Application
- 793923
- Application, DOCDB
- 09793923
- Application, EPODOC
- PL20090793923T
Titles2
- English
- Method and apparatus for packaging a liquid food product
- Polish
- Sposób i urządzenie do pakowania ciekłego żywnościowego produktu
Classification
- CPC, 22
- B65B3/022
- B29C49/4268
- B29C49/06
- B29C2049/4655
- B29C2049/4664
- B29K2023/06
- B29K2023/12
- B29K2025/00
- B29K2027/06
- B29K2067/00
- B29K2067/046
- B29K2069/00
- B29K2623/06
- B29K2667/00
- B29C2949/0715
- B29C2049/7862
- B29C2049/78645
- B29C2049/7866
- B29C49/087
- B29C2049/7879
- B29C2049/78805
- B29C49/1229
- IPC, 5
- B29C49 46
- B29C49 06
- B29C49 12
- B29C49 78
- B65B3 02