US3269079A - Method of and apparatus for sterile packaging of sterile consumer goods - Google Patents

Method of and apparatus for sterile packaging of sterile consumer goods Download PDF

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Publication number
US3269079A
US3269079A US271771A US27177163A US3269079A US 3269079 A US3269079 A US 3269079A US 271771 A US271771 A US 271771A US 27177163 A US27177163 A US 27177163A US 3269079 A US3269079 A US 3269079A
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United States
Prior art keywords
tube
goods
sterile
heating
filling
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Expired - Lifetime
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US271771A
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English (en)
Inventor
Schmied Rudolf
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Alpura AG
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Alpura AG
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Publication date
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    • 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
    • B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
    • B65B55/02—Sterilising, e.g. of complete packages
    • B65B55/04—Sterilising wrappers or receptacles prior to, or during, packaging
    • B65B55/06—Sterilising wrappers or receptacles prior to, or during, packaging by heat

Definitions

  • the invention relates to a method of and apparatus for sterile packaging of sterile consumer goods wherein a tube is formed from a packaging material in a filling and packaging machine; the tube is partly filled with the goods to be packaged, and thereupon compressed transversely of its length to form closed receptacles, the inside of the formed tube being sterilized by heat at a location above the goods.
  • sterilization of the packaging material prior to formation of the tube may be omitted.
  • heating means are disposed inside of the tube and above the goods filled thereinto, for heating the inside of the tube to sterilization temperature.
  • the heating means may be, for example, in the form of an electric radiator.
  • the energy required to heat the inside of the tube is transmitted from the outside of the tube through the wall thereof. Therefore, no heating means are required in the interior of the tube, a feature which is very advantageous in the preparation of small containers which are made from a small diameter tube.
  • Another advantage of the system of the invention is the much greater freedom in choosing the type of heating and the medium used as heat carrier.
  • the size of the heating means is not restricted to tube diameter.
  • supplemental heating of the inside of the tube is provided.
  • the intensity of the heat applied to the outside of the tube can be reduced.
  • at least the side of the packing material which subsequently forms the inside of the tube may be treated with a chemical agent detrimental to germs or microbes which may be present.
  • the apparatus for performing the method according to the invention comprises tube-forming elements, a filling pipe for the material to be packaged which pipe extends into the formed tube, and pressing elements for compressing the filled tube, and is characterized in that a source of heat energy is placed outside the tube above the goods filled thereinto, for heating the inside of the tube.
  • the aforesaid energy source may be in the form of a heat radiator; alternatively, the energy source may comprise means for applying a flowable heat carrier to the outer wall of the tube.
  • heating may be electric, for example, by providing means producing a highfrequency electric field extending through the tube wall. Additional heating means may be placed inside the tube; since the internal heating means do not have to provide the entire heat required, the additional heating means may be of suitably small size.
  • means may be provided for applying a chemically active substance at least to that side of the packaging material which will subsequently form the inside of the containers.
  • a second pipe may be extended through the open end of the tube, the second pipe terminating above the goods filled into the tube, and means being provided for introducing a sterile gaseous medium through the second pipe into the interior of the tube. This arrangement produces a gas current which prevents ambient air from entering the interior of the tube.
  • FIG. 1 is a schematic sectional view of a filling and packing machine according to the invention.
  • FIG. 2 is a schematic cross-sectional view of a portion of a heating device forming part of the machine illustrated in FIG. 1.
  • FIG. 3 is a schematic part-sectional view of a filling and packing machine corresponding to that illustrated in FIG. 1 and provided with a modified heating system.
  • FIG. 4 illustrates means, cooperating with an apparatus according to the invention, for pretreating the packing material.
  • FIG. 5 is a schematic part sectional view of a portion of a modified apparatus according to the invention provided with additional heating means inside the tube.
  • FIG. 6 is a schematic cross-sectional view of a dielectric heating arrangement suitable for use in the system according to the invention.
  • the filling and packing machine comprises a casing 1 on which a support member 2 is mounted. Striplike material 5 is continuously unwound from a reel, not
  • the packing material 5 is in the form of paper type strip coated on one side with a plastic film made, for example, of polyethylene, and is so guided into a ring 3 that a tube 5 is formed, the coated side of the paper forming the inner wall of the tube.
  • the lateral marginal portions of the material 5 overlap and form a longitudinal portion of the tube after it is formed.
  • a heating element 7 secured to a support 6 is pressed against the overlapping portions of the material 5 and binds the overlapping portions together by fusing the plastic film. Inside the formed tube, the overlapping portions bear against a roller, not shown, opposite the heating element 7 which is electrically heated.
  • Transverse heat sealing means for compressing the tube 5 at intervals are provided inside the casing 1.
  • the transverse heat sealing means comprise electrically heated pairs of pressing jaws 10, 11 which are secured to endless chains 12, 13 and move therewith when the device is in operation.
  • the chains 12, 13 run around guide wheels 14, 15 and 16, 17, respectively.
  • the wheels 14 a and 17 are rotated by driving means, not shown, in the direction indicated by arrows 18 and 19, respectively.
  • Additional pairs of pressing jaws, not shown, are moved in a plane normal to the plane of the drawing so that the continuously descending tube is compressed alternately in two directions perpendicular to one another. Movement of the pressing jaws, when in the operative position, causes a downward movement of the material 5 and tube 5.
  • the compression of the tube 5 by the heated pressing jaws subdivides the tube 5 into closed receptacles 20.
  • the goods to be packaged for example, milk which has been sterilized in a manner not described, is supplied to the apparatus through a filling pipe 21.
  • the latter is secured to a member 4 in a manner which will be described later.
  • a part of the length of pipe 21 is surrounded by heat insulation 26.
  • the supply of milk is controlled by means of a float 9 in the conventional manner for maintaining a constant liquid level 22 within the tube 5.
  • a closure member 33 In the unfilled top part of the tube is a closure member 33 which, when the apparatus is in operation, engages With the inner tube wall.
  • the member 33 is supported by a jacket member 37 which extends through the top of the tube 5' and is secured to the filling pipe 21.
  • the closure member 33 is formed with a recess 38 where the filling pipe 21 extends through the member 33.
  • the recess 38 intercepts condensation water forming on the outside of the filling pipe 21.
  • the jacket member 37 is secured to the member 4.
  • a heating device 61 is placed outside the tube 5 and is operative upon the outside of the tube above the liquid level 22.
  • the heating device comprises a quartz tube 62 provided with passages 63 longitudinal of the tube 62 and accommodating electric heating coils 64. Current is supplied thereto through a conduit 65.
  • FIG. 2 is a cross-section through a portion of the quartz tube 62 and of the tube 5.
  • the material 5 Prior to starting normal operation of the apparatus the material 5 is formed into the tube 5 which is compressed at intervals by the jaws 10, 11 to form a plurality of empty receptacles.
  • the heating device 61 is operative during this time and heats the outside of the tube in order to raise the temperature of the inside of the tube to sterilization temperature.
  • hot air or another suitable heat carrier is temporarily passed through the pipe 21 from a source, not shown.
  • the pipe 21 and the elements in side the tube, such as the float 9, the closure member 33, and the jacket member 37, are sterilized by the hot air which escapes through a clearance between the member 33 and the tube 5' and through the top of the apparatus.
  • the hot air destroys microbes which may be present in the air in the tube 5'.
  • the tube Wall Because of the heat supplied by the heating device 61 to the outside of the tube, heat flows through the tube Wall to the inside wall of the tube and increases the temperature of the inside wall, which subsequently is in contact with the goods, for destroying any microbes on the inside wall of the tube.
  • the inside wall of the tube must be heated to, for example, between 100 C. and 300 C., depending upon the speed at which the tube is moving through the device.
  • FIG. 3 illustrates a packing and filling machine similar to the apparatus illustrated in FIG. 1, like elements being designated by like numerals.
  • the outside of the tube is not heated by radiation but by engagement with a fiowable heat carrier.
  • a tubular jacket 28 surrounds the tube 5' when the apparatus is in operation, a clearance 29 being provided between the jacket 28 and the tube 5'.
  • An aperture 30 is provided in the jacket 28.
  • Around the aperture 30 is an annular distributing channel 31 to which a pipe 32 is connected. The latter is provided with a valve 43 and connected to a blower 44 which draws air from the atmosphere.
  • a heating means for example an electric heating coil 45, is disposed in the pipe 32.
  • a filter 47 Downstream of the heating means 45 a filter 47 is provided which retains microbes carried along by the air.
  • air which has been heated to a temperature of, for instance, 300 C. is introduced into the clearance 29 between the tube 5 and the jacket 23. Due to the outside heating of the tube 5 heat travels through the wall of the tube 5 so that the inside thereof is sufficiently heated for sterilization.
  • the bottom part of the jacket tube 28 is preferably made of flexible material.
  • a hose 28b is secured to a sleeve 28c screwed onto the metallic top part 28a of the jacket 28.
  • the hose 28b is preferably made of a heat-resistant plastic material, for example, of a polymerization product of tetrafluoroethylene.
  • the filling pipe 21 is surrounded by a tube 53 whose bottom end is open and which is connected by a pipe 54 to the pipe 32.
  • the pipe 54 is provided with a valve 55, a filter 57 for retaining germs and an electric heating device 56.
  • the pipe 54 is also connected to the filling pipe 21 by means of a conduit 58 provided with a valve 59.
  • the filling pipe 21 is provided with a valve 51.
  • heated and sterile air of a temperature of, for example 300 C. is supplied through the pipe 32 to the jacket 28.
  • a portion of the air supplied by the blower 44 is heated in the device 56 and conducted through the pipe 5 1 to the filling pipe 21 and to the tube 53.
  • the inside of the filling pipe 21 and of the tube 53 and also the parts inside the jacket 28, namely the outside of the lower portion of the filling pipe 21 and the float 9 and apparatus connected therewith, are sterilized.
  • the heating element '7 is started and the strip 5 is introduced into the apparatus and pushed downward inside the jacket 28 until the tube is gripped by the rotating jaws 10, 11 and pulled thereby through the apparatus.
  • the overlapping longitudinal marginal portions of the strip 5 are welded together as described in connection with the embodiment of the invention shown in FIG. 1.
  • the tube 5 is in connection with the surrounding atmosphere only at its starting point 36.
  • the initially formed containers are filled with air.
  • the heater 56 is stopped so that when the valves 59 and 60 are open cold air sterilized in the filter 57 flows into the pipe 54 and through the pipe 21 and the tube 53 into the interior of the tube 5'.
  • the initially formed containers are therefore filled with cold sterile air.
  • the excess sterile air flows upward toward the starting point 36 of the tube 5. In this way a gas current is provided which prevents entry of ambient air into the tube 5.
  • the rate of flow of air supplied to the tube 53 can be so controlled that during normal operation the velocity of the air current between the outside surface of the tube 53 and the inside surface of the tube 5 is low and the inside of the tube 5 is not excessively cooled.
  • the heating device 56 may be so controlled that a desired temperature of the air supplied to the interior of the tube 53 is maintained.
  • the valve 59 Upon completion of the aforedescribed initial sterilization, the valve 59 is closed and the valve 51 is opened.
  • the goods to be packaged for example milk, now flows through the pipe 21.
  • the containers sealed closed by the jaws 10, 11 are completely filled with the goods to be packaged. Entry of germs is prevented by the sterile air leaving the bottomv end of the tube 53 and moving upward inside the tube 5.
  • nitrogen or another inert gas which does not react unfavorably with the goods to be packaged may be introduced into the tube 5' through the tube 53.
  • the specific gravity of nitrogen at room temperature is greater than that of the ambient air so that the tube 5 will be permanently filled by the relatively heavy gas.
  • the method according to the invention requires a certain resistivity of the packing material against elevated temperatures.
  • a packing material formed of a thin metal foil or of paper to one side of which a metal foil is applied, or by placing a metal foil between two layers of paper.
  • Very sensitive packing materials for example certain types of paper, may be adversely affected by the required heating.
  • a chemical pretreatment of the packing material as illustrated in FIG. 4 may be desirable.
  • the striplike packing material 71 passes through a bath 72 before it enters the filling and packing machine 73.
  • the bath 72 consists of a chemical solution, for example a 15% hydrogen peroxide solution, which is detrimental to germs. Therefore, a lower temperature is needed for completely destroying the germs than is required without the chemical pretreatment of the packing material.
  • an additional heating device may be provided inside the tube 5' which supplements the heating of the inside of the tube which is effected by penetration of energy from the outside of the tube to the inside thereof.
  • An arrangement of this type is shown in FIG. 5.
  • a jacket 28 is provided as in the embodiment shown in FIG. 3, the inside of the jacket, i.e. the clearance 29 between the jacket 28 and the tube 5', being supplied with hot air or another suitable heat carrier by means of a conduit 32.
  • the device for supplementally heating the inside of the tube 5' is formed by an electric radiator 86 surrounding the filling pipe 21, In this way the inside of the tube 5' is directly exposed to the radiation from the device 86. Current is supplied to the radiator 86 through conduits 87 which extend through the opening 36 of the tube 5'. Since the heater 86 must supply only a part of the heat required for sterilization the heater may be small so that it can be easily accommodated within the tube 5'.
  • FIG. 6 is a diagrammatic illustration of another modification of the device for heating the tube 5'.
  • the tube is surrounded by two semicylindrical elements 91 and 92 made of electric conductive material.
  • the elements 91 and 92 are connected by conduits 93 and 94, respectively, to a high-frequency electric generator so that a high-frequency condenser field is produced between the elements 91 and 92.
  • the frequency may amount to 15,000 cycles per second.
  • a dielectric heating of the tube 5 and therefore of the inside of the tube is effected by electric energy transport from the outside of the tube.
  • a hollow cylinder may be arranged concentric with the tube 5' and an electrode may be provided inside of the tube.
  • the filling pipe 21 may be used to form this inside electrode.
  • the invention is not limited to the described and il lustrated examples. Different types of heating devices may be placed at the outside of the tube 5 and different heat carriers may be used. If the packing material from which the packing tube is formed includes a metal foil in addition to a paper and/or synthetic films, the packing tube may be heated inductively, for example, by surrounding the tube with a coil which produces an electric field of medium or high frequency. In this case eddy currents are produced within the metal foil which effect heating of the foil.
  • the apparatus according to the invention can be used for packaging any fiowable goods aside from milk, for example, for packaging fiowable powders.
  • the invention is not limited to apparatus forming a tube from striplike material; it can be applied to apparatus whereby a tube is produced by extrusion of synthetic plastic packing material, aluminum, or the like, through an annular nozzle.
  • a method of sterile packing sterile consumer goods comprising:
  • heating means disposed solely on the outside of the tube for continuously heating the empty tube beyond the goods filled thereinto for heating the inside thereof to at least sterilization temperature.
  • said heating means includes heat radiation means radiating heat onto the outside of the tube.
  • said heating means includes a source of hot fiuid and means for moving the hot fluid in contact with the outside of the tube.
  • said heating means includes means for producing a high frequency electric field penetrating the tube.
  • a pipe extending into the tube for conducting the sterile goods into the tube, a second pipe placed adjacent to said first pipe and terminating in said tube upstream of the level of the goods filled into said tube, and means for producing a sterile said sterile gas filling the empty tube beyond the sterile goods and preventing ambient air from entering the tube.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Basic Packing Technique (AREA)
US271771A 1962-04-12 1963-04-09 Method of and apparatus for sterile packaging of sterile consumer goods Expired - Lifetime US3269079A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH447262A CH399287A (de) 1962-04-12 1962-04-12 Verfahren und Vorrichtung zum sterilen Verpacken von sterilem Verbrauchsgut

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US3269079A true US3269079A (en) 1966-08-30

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CH (1) CH399287A (da)
DK (1) DK111406B (da)
GB (1) GB1034416A (da)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911642A (en) * 1972-09-22 1975-10-14 Tetra Pak Int Method for the sterile packing of a sterile material
US3922835A (en) * 1973-10-11 1975-12-02 Altstaedter Verpack Vertrieb Apparatus for packaging under sterile conditions
US3943682A (en) * 1973-06-14 1976-03-16 Tetra Pak Developpement Sa Method for making, filling and sealing containers through a recloseable filling opening
US3970426A (en) * 1974-03-18 1976-07-20 Deering Milliken Research Corporation Method and apparatus for the presterilization of packing machines
US4391080A (en) * 1979-09-20 1983-07-05 The Mead Corporation Method for providing an inert sterile atmosphere in an aseptic packaging machine
US4606174A (en) * 1984-03-08 1986-08-19 Tetra Pak International Ab Method and an arrangement for the manufacture of packing containers
US4809485A (en) * 1986-12-29 1989-03-07 Ab Tetra Pak Arrangement for the control of the flow of contents in a packing machine
US4869458A (en) * 1986-05-21 1989-09-26 Baxter International Inc. Liquid distribution valve
US4887411A (en) * 1987-06-25 1989-12-19 Baxter International Inc. Apparatus for filling bags or pouches with a perfusion liquid
US5029430A (en) * 1990-01-02 1991-07-09 W.A. Lane, Inc. Pouch packaging machine humidity and asepsis control
US5044140A (en) * 1989-04-10 1991-09-03 Shikoku Kakoki Co., Ltd. Packaging machine
US5241804A (en) * 1991-06-11 1993-09-07 Orihiro Co., Ltd. Vertical type forming, filling and closing machine for flexible package
US5548947A (en) * 1993-07-08 1996-08-27 Thomas J. Lipton Co. Apparatus and method for producing packets
US5881535A (en) * 1996-04-09 1999-03-16 Baxter International, Inc. Apparatus and method for filling and sealing intravenous solution bags
US6009684A (en) * 1997-02-28 2000-01-04 Tetra Laval Holdings & Finance, Sa Aseptic valve assembly
US20070289257A1 (en) * 2003-08-05 2007-12-20 Yoshitugi Hashiba Apparatus And Method For Packaging Granular Object Having Adsorption Ability, And Method For Producing Package Thereof
US20070294982A1 (en) * 2004-11-11 2007-12-27 Thomas Knoke Machine for Forming, Filling and Closing Bags With a Bag Lifting Device
US20090071106A1 (en) * 2003-04-04 2009-03-19 Sjoholm Johan B Device and method for sterilisation, filling and sealing of a package
US20090199519A1 (en) * 2006-05-10 2009-08-13 Orihiro Engineering Co., Ltd. Vertical filling-packaging machine
US20110185686A1 (en) * 2008-05-11 2011-08-04 Tetra Laval Holdings & Finance S.A. Packaging and filling machine
US20160122051A1 (en) * 2013-06-04 2016-05-05 Tetra Laval Holdings & Finance S.A. Device and method in a filling machine
WO2020072500A1 (en) * 2018-10-02 2020-04-09 Pure Nature Foods, LLC Apparatus and method for post-extrusion filling and closure of an extrudate
US11230399B2 (en) * 2018-10-10 2022-01-25 Jbt Food & Dairy Systems B.V. Stick filler pipe with integral sterilization
US20230303283A1 (en) * 2020-07-28 2023-09-28 Universal Pack S.R.L. Delivery Unit for an Aseptic Packaging Machine, Aseptic Packaging Machine and Sterilization Method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889673A (en) * 1955-10-24 1959-06-09 Louis B Rockland Sealing device
US2918770A (en) * 1957-03-14 1959-12-29 Alpura Ag Apparatus for sterile packing of sterile substances
US2928219A (en) * 1957-03-26 1960-03-15 Alpura Ag Apparatus for sterile packaging sterile consumer goods
US3055731A (en) * 1957-02-22 1962-09-25 Alpura Ag Method and means for preventing reinfection of the sterilized surface of sheet-like packing material
US3063211A (en) * 1960-06-21 1962-11-13 Graves Stambaugh Corp Sterilized liquid food product packaging
US3163971A (en) * 1960-12-16 1965-01-05 Alpura Ag Method of sterile packing of sterile goods
US3164936A (en) * 1960-12-12 1965-01-12 Alpura Ag Apparatus for sterile packing of sterile goods

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889673A (en) * 1955-10-24 1959-06-09 Louis B Rockland Sealing device
US3055731A (en) * 1957-02-22 1962-09-25 Alpura Ag Method and means for preventing reinfection of the sterilized surface of sheet-like packing material
US2918770A (en) * 1957-03-14 1959-12-29 Alpura Ag Apparatus for sterile packing of sterile substances
US2928219A (en) * 1957-03-26 1960-03-15 Alpura Ag Apparatus for sterile packaging sterile consumer goods
US3063211A (en) * 1960-06-21 1962-11-13 Graves Stambaugh Corp Sterilized liquid food product packaging
US3164936A (en) * 1960-12-12 1965-01-12 Alpura Ag Apparatus for sterile packing of sterile goods
US3163971A (en) * 1960-12-16 1965-01-05 Alpura Ag Method of sterile packing of sterile goods

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911642A (en) * 1972-09-22 1975-10-14 Tetra Pak Int Method for the sterile packing of a sterile material
US3943682A (en) * 1973-06-14 1976-03-16 Tetra Pak Developpement Sa Method for making, filling and sealing containers through a recloseable filling opening
US3922835A (en) * 1973-10-11 1975-12-02 Altstaedter Verpack Vertrieb Apparatus for packaging under sterile conditions
US3970426A (en) * 1974-03-18 1976-07-20 Deering Milliken Research Corporation Method and apparatus for the presterilization of packing machines
US4391080A (en) * 1979-09-20 1983-07-05 The Mead Corporation Method for providing an inert sterile atmosphere in an aseptic packaging machine
US4606174A (en) * 1984-03-08 1986-08-19 Tetra Pak International Ab Method and an arrangement for the manufacture of packing containers
US4869458A (en) * 1986-05-21 1989-09-26 Baxter International Inc. Liquid distribution valve
US4809485A (en) * 1986-12-29 1989-03-07 Ab Tetra Pak Arrangement for the control of the flow of contents in a packing machine
US4887411A (en) * 1987-06-25 1989-12-19 Baxter International Inc. Apparatus for filling bags or pouches with a perfusion liquid
US5044140A (en) * 1989-04-10 1991-09-03 Shikoku Kakoki Co., Ltd. Packaging machine
US5029430A (en) * 1990-01-02 1991-07-09 W.A. Lane, Inc. Pouch packaging machine humidity and asepsis control
US5241804A (en) * 1991-06-11 1993-09-07 Orihiro Co., Ltd. Vertical type forming, filling and closing machine for flexible package
US5548947A (en) * 1993-07-08 1996-08-27 Thomas J. Lipton Co. Apparatus and method for producing packets
US5881535A (en) * 1996-04-09 1999-03-16 Baxter International, Inc. Apparatus and method for filling and sealing intravenous solution bags
US6009684A (en) * 1997-02-28 2000-01-04 Tetra Laval Holdings & Finance, Sa Aseptic valve assembly
US20090071106A1 (en) * 2003-04-04 2009-03-19 Sjoholm Johan B Device and method for sterilisation, filling and sealing of a package
US20070289257A1 (en) * 2003-08-05 2007-12-20 Yoshitugi Hashiba Apparatus And Method For Packaging Granular Object Having Adsorption Ability, And Method For Producing Package Thereof
US7779611B2 (en) * 2003-08-05 2010-08-24 Kureha Corporation Apparatus and method for packaging granular object having adsorption ability, and method for producing package thereof
US20070294982A1 (en) * 2004-11-11 2007-12-27 Thomas Knoke Machine for Forming, Filling and Closing Bags With a Bag Lifting Device
US7877966B2 (en) * 2004-11-11 2011-02-01 Windmoeller & Hoelscher Kg Machine for forming, filling and closing bags with a bag lifting device
US20090199519A1 (en) * 2006-05-10 2009-08-13 Orihiro Engineering Co., Ltd. Vertical filling-packaging machine
US20110185686A1 (en) * 2008-05-11 2011-08-04 Tetra Laval Holdings & Finance S.A. Packaging and filling machine
US8943786B2 (en) * 2008-05-11 2015-02-03 Tetra Laval Holdings & Finance S.A. Packaging and filling machine
US20160122051A1 (en) * 2013-06-04 2016-05-05 Tetra Laval Holdings & Finance S.A. Device and method in a filling machine
US10494125B2 (en) * 2013-06-04 2019-12-03 Tetra Laval Holdings & Finance S.A. Device and method in a filling machine
WO2020072500A1 (en) * 2018-10-02 2020-04-09 Pure Nature Foods, LLC Apparatus and method for post-extrusion filling and closure of an extrudate
US11388909B2 (en) 2018-10-02 2022-07-19 Pure Nature Foods, LLC Apparatus and method for post-extrusion filling and closure of an extrudate
US11230399B2 (en) * 2018-10-10 2022-01-25 Jbt Food & Dairy Systems B.V. Stick filler pipe with integral sterilization
US20230303283A1 (en) * 2020-07-28 2023-09-28 Universal Pack S.R.L. Delivery Unit for an Aseptic Packaging Machine, Aseptic Packaging Machine and Sterilization Method
US12420973B2 (en) * 2020-07-28 2025-09-23 Universal Pack S.R.L. Delivery unit for an aseptic packaging machine, aseptic packaging machine and sterilization method

Also Published As

Publication number Publication date
DK111406B (da) 1968-08-12
CH399287A (de) 1966-03-31
GB1034416A (en) 1966-06-29

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