US3698624A - Packaging containers of parallelepiped shape - Google Patents

Packaging containers of parallelepiped shape Download PDF

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Publication number
US3698624A
US3698624A US43119A US3698624DA US3698624A US 3698624 A US3698624 A US 3698624A US 43119 A US43119 A US 43119A US 3698624D A US3698624D A US 3698624DA US 3698624 A US3698624 A US 3698624A
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US
United States
Prior art keywords
channel
legs
leg
shaped
packaging container
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 - Lifetime
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US43119A
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English (en)
Inventor
Sven Olof Soren Stark
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.)
Cordotex SA
CORDOTEX
Tetra Pak AB
Original Assignee
CORDOTEX
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 CORDOTEX filed Critical CORDOTEX
Application granted granted Critical
Publication of US3698624A publication Critical patent/US3698624A/en
Assigned to AKTIEBOLAGET TETRA PAK reassignment AKTIEBOLAGET TETRA PAK CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). (SWEDEN) Assignors: TETRA PAK INTERNATIONAL AKTIEBOLAG
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/32—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray
    • B65D5/322—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to essentially U-shape with or without extensions which form openable lid elements
    • B65D5/324—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to essentially U-shape with or without extensions which form openable lid elements at least two container body parts, each formed by folding a single blank to essentially U-shape
    • B65D5/325—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper having bodies formed by folding and interconnecting two or more blanks each blank forming a body part, whereby each body part comprises at least one outside face of the box, carton or tray at least one container body part formed by folding a single blank to essentially U-shape with or without extensions which form openable lid elements at least two container body parts, each formed by folding a single blank to essentially U-shape whereby one blank forms three sides of the body, and the other blank forms the remaining sides, a hinged lid, and the opposite end closure
    • 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
    • B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
    • B65B9/042—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material for fluent material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00—Receptacles
    • Y10S220/25—U-shaped sectional

Definitions

  • ABSTRACT A packaging container in which an element having at Aug. 13, 1969 Sweden ..1 1242/69 least one channel shaped portion is enclosed by a channel-shaped member thus forming one or a connected series of parallelepiped shaped containers; the "229/23 220/4 Z 25 edges of the element being sealed to the member.
  • a E52 series of containers may be separated from each other are a r and each container may have means for facilitating the opening thereof.
  • PACKAGING CONTAINERS F PARALLELEPIPED SHAPE This invention relates to a packaging container of parallelepiped shape.
  • Packaging containers of parallelepiped shape are often used within packaging technology, the reasons for this being, naturally, the good stackability of the parallelepiped packaging containers and the small space they require in relation to their volume.
  • the above methods entail certain drawbacks.
  • the folding and pressure moulding operation involves e.g. a relatively large consumption of materials since moulding entails the formation of triangular corner flaps which are not included in the effective surface of the package, while moulding by plastic deformation of a plastic material heated to its softening temperature involves uneven distribution of wall thickness and also distortion of any decorative pattern there may be, and in addition the moulding method is relatively slow.
  • the above drawbacks are avoided by means of the invention which is characterized by its comprising two elements of channel section, which elements have an angular displacement in relation to one another and are joined along those of their edges that are in contact, in order to form a closed body. It is thus possible to produce a series of packaging containers according to the invention in a continuous row, the series of packaging containers being characterized by a continuous strip folded into a series of channel-shaped elements (U-section elements) and by a long member of channel section which is substantially the same length as the folded strip, the said long member being placed around the said folded strip and sealed on the inside of the web to the tops of the channel-shaped folds of the folded strip.
  • the method of producing packaging containers in accordance with the invention is characterized by a first strip of relatively stiff foldable material being folded in a transverse direction so as to form a series of channel-shaped elements all in a continuous row, after which a second strip of preferably the same material is formed into a long channel-shaped member, the width between the legs of the long channel-shaped member being made the same as the length of the transverse channel-shaped elements; the long channel-shaped member being placed over the strip folded into the continuous series of transverse channel-shaped elements in such a way that the tops of the folds are in contact with the inside of the base of the long channelshaped member while the parallel sides of the long channelshaped member are in contact with the side edges of each of the transverse channel-shaped elements; and, finally, by the long channel-shaped member and the transverse channel-shaped elements being joined to one another in a durable manner at those areas where they are in contact.
  • FIG. 1 shows a package comprising two elements of channel section
  • FIG. 2 shows a series of parallelepiped packages in a continuous row
  • FIGS. 3 and 4 show strips of the packaging material
  • FIG. 5 shows a strip of packaging material folded into elements of channel section
  • FIG. 6 shows schematic apparatus for the production of packages in accordance with the invention
  • FIG. 7 shows a cross section on line AA of the apparatus shown in FIG. 6, and
  • FIG. 8 shows a section on line BB of the apparatus shown in FIG. 6.
  • the package shown in FIG. 1 comprises two elements (1) and (2) of channel section which have an angular displacement in relation to one another and are fitted together in such a way as to form a parallelepiped body.
  • FIG. 2 shows a series of parallelepiped packaging units in a continuous row, each of which comprises elements (3) and (4) of channel section.
  • each of the packaging units situated in series alongside one another thereis a space (5), and the packaging units can be separated from one another by tearing open the tear flap (8) which extends around the entire circumference of the channel-shaped member (3).
  • the tear arrangement may consist of two lines of perforations located at a certain distance from eachother, both of which extend around the whole of the channel-shaped member (3). Naturally, care must be taken to ensure that the tear lines are located within the space (5) between two adjacent packaging units.
  • a packaging unit is to be removed from the row of continuous packages, one end of the strip of material (8) that is situated between the two lines of perforations is pulled up and the strip is then removed by pulling in the direction of the arrow. Since the channel-shaped member (3), in the region (5) between adjacent packaging units, is joined to the tops (16) (see FIG. 5) of the folds in the folded strip (13), it is best to have tear lines along the tops (16) of the folds as well.
  • the edge zone of the channel-shaped member (3) projects somewhat beyond the walls of the channel-shaped member (4), and the channel-shaped element (3) is in addition joined to a drawflap (9) which in FIG. 2 is shown folded down toward the face of the element (4).
  • the method of producing a row of packaging containers in accordance with FIG. 2, as well as apparatus for carrying out the method, will be described below in greater detail with reference to FIG. 6.
  • the apparatus shown in FIG. 6 consists of an endless belt (18) which runs over driven wheels (31). Forming walled boxes the insides of which are in connection with a source of vacuum, and whose side surfaces are provided with holes or slots.
  • the belt (18) is equipped with such guide units that the said forming units (19) are arranged at right angles to the said forming sections (26), at least along those sections of the belt where movement is vertically downwards along a straight line.
  • the equipment also has heating units (22) which are situated on either side of the belt (18), preferably in the vicinity of the upper wheel (31).
  • the heating units are located in such a way that the ends of the forming units 19) must pass in front of the heating units.
  • the apparatus furthermore comprises a device, not shown, for folding a flat sheet into the shape of a channel, and in order to facilitate this work, the strip may be pre-folded in the way shown in FIG. 4, which shows a strip of packaging material consisting of a carrier layer (11) of e.g. foam plastic or paper and a layer of homogeneous thermoplastic material laminated to the carrier layer (11). If desired the laminate may consist of foam plastic and aluminum foil.
  • the strip of material is provided with a fold line (12) and, in the case illustrated, a plastic strip (32) projecting from the carrier material.
  • Another strip of material of the type shown in FIG. 3 also consists of a laminate comprising foam plastic or paper (11) and a homogeneous layer of plastic (10).
  • the strip of material is pre-folded by fold lines (12) in order to facilitate folding of the material.
  • the strip of material in accordance with FIG. 3 is designed to be folded in the manner shown in FIG. 5, i.e. the strip (13) is folded along the fold lines (12) in order to form narrow folds (14) which have the same height and width and are spaced uniformly along the strip (13).
  • the flat tops of the folds (14) are denoted by (16) and the space between two adjacent walls of the folds by (17).
  • the folded strip in accordance with FIG. 5 is made by folding the preformed strip (13) as in FIG. 3 along the fold lines (12) with the aid of equipment not shown here in greater detail, which may in principle consist of a rotatable or reciprocating pusher unit, by which the strip (13) is folded and inserted over and between the forming units (19).
  • the forming units (19) and the forming sections (26) situated between the forming units are connected to a source of vacuum and are provided with holes which open onto the surfaces of the forming units (19) and the forming sections (26), which means that the strip (13) folded over the forming units (19) will be drawn against the surfaces of the forming units (19) and the forming sections (26) and will be retained there by suction during the whole of the forming operation.
  • the distances between the fold lines (12) situated on the strip (13) must naturally be the same as the height of the fold forming units (19), the length of the forming sections (26) and the width of the forming units (19).
  • the width of the strip (13) is preferably such that it is somewhat wider than the width of the forming units (19), which means that an edge zone of the strip (13) will project by a matter of a few millimeters beyond the side edges of the forming units (19).
  • the strip folded in this way is carried past the heating units (22), the parts of the folded strip (13) which project from the side edges of the forming unit being heated to sealing temperature.
  • the folded strip (13) is carried vertically downwards, the forming unit (19) assuming a position at right angles to the forming sections (26), which means that the folds (14) will be situated at right angles to the strip (13).
  • the folded strip (13) is joined onto the previously mentioned member (3) that has been folded into the shape of a channel, which has been arranged with its web facing the tops (16) of the folds (14) and with its legs against the heated edge zones (15) of the folded strip (13).
  • the web (29) (see FIG. 7) of the channel-shaped member 3 undergoes deformation in the region of the fill pipe.
  • this deformation should not set up harmful stresses in packaging materials which have slight elasticity, it is possible to arrange longitudinal fold lines in the web of the channel-shaped member (3), which, when the web of the member is stretched in the transverse direction, will accomodate the fill pipe without difficulty between the web 29) of the member (3) and the tops (16) of the folds (14) in the folded strip (13). If required, it will naturally be possible to arrange a number of longitudinal fold lines along the web of the member (3) in order to allow for even greater expansion of the web.
  • FIG. 7 is a cross section on line A-A of the apparatus shown in FIG. 6.
  • FIG. 7 is a cross section on line A-A of the apparatus shown in FIG. 6.
  • FIG. 8 shows a section on line B--B through the apparatus shown in FIG. 6. After the sections have been filled and sealed by the sealing unit (21), they can be removed by means of a cutter unit (24) that acts along both the tops and side edges of the forming units (19).
  • the strip of packaging material By providing the strip of packaging material to be folded into a channel member 3 with a projecting free plastic edge (32) as shown in FIG. 4, it is possible to make e.g. the top of the package from a thinner material, i.e. the carrier layer can be left out.
  • the fact that the top portion is made from a thinner material may be an advantage when the package is to be opened, which is further facilitated by the projecting plastic edge (32) being made wider than the width of the folds (14) in the folded strip of material (13), which means that a draw flap (9.) is provided which will further facilitate opening of the package by tearing off the top portion.
  • a packaging container having a substantially parallelepiped shape comprising a member of relatively stiff foldable material having a channel shaped crosssection with parallel legs, said member including an inner thermoplastic lamina, and an element of relatively stiff foldable material having a channel shaped portion with parallel legs, the distance between the inside surfaces of the legs of the member being the same as the transverse width of the legs of said element and the length of each leg of said member being greater than the length of each leg of said element and the width of each leg and the connecting web between each leg of said member being greater than the length of the web connecting the legs of said element, said member being angularly displaced with respect to said element so as to cover the openings of said channel shaped portion of said element, the inner surface of said member being heat-sealed to all of the abutting edges of said element to form a closed packaging container in which said member includes marginal edges extending beyond all of the abutting edges of said element.
  • a packaging container as claimed in claim 1 wherein one of the legs of said member having a channel-shaped cross-section is provided with an extension at the end thereof to form a flap extending outwardly from the packaging container which can be pulled up to open the container by removing the associated leg of said member from the packaging container.
  • a packaging container having a substantially parallelepiped shape comprising a member of relatively stiff foldable material having a channel-shaped crosssection with parallel legs and a strip element of relatively stiff foldable material having a plurality of transverse folds to form a plurality of juxtaposed transverse channel-shaped portions with parallel legs, said channeL shaped member being at least as long as said transversely folded element, the distance between the inside surfaces of the legs of said member being the same as the transverse width of the legs of said element having a plurality of juxtaposed transverse channel-shaped portions and the length of each leg of said member being greater than the length of each leg of said element and the width of each leg and the connecting web between each leg of said member being greater than the length of the web connecting the legs of said element, said member being angularly displaced with respect to said element so as to cover the openings of said plurality of channel-shaped portions, the inner surface of said member being sealingly joined to the abutting side edges of the legs of the transverse channel-shaped portions and to the'end
  • a series of adjoined packaging containers as claimed in claim 7 wherein at least one pair of adjoined packaging containers are provided with at least one line of perforations therebetween extending transversely of said packages and between the seals of the leg portions of the transverse channel-shaped portion of said folded element to said channel-shaped member to permit separation of the adjoined packages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packages (AREA)
  • Basic Packing Technique (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US43119A 1969-08-13 1970-06-03 Packaging containers of parallelepiped shape Expired - Lifetime US3698624A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE11242/69A SE330505B (sv) 1969-08-13 1969-08-13

Publications (1)

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US3698624A true US3698624A (en) 1972-10-17

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ID=20293595

Family Applications (2)

Application Number Title Priority Date Filing Date
US43119A Expired - Lifetime US3698624A (en) 1969-08-13 1970-06-03 Packaging containers of parallelepiped shape
US00106673A Expired - Lifetime US3726058A (en) 1969-08-13 1971-01-15 Method of producing packages having parallelepiped shape

Family Applications After (1)

Application Number Title Priority Date Filing Date
US00106673A Expired - Lifetime US3726058A (en) 1969-08-13 1971-01-15 Method of producing packages having parallelepiped shape

Country Status (25)

Country Link
US (2) US3698624A (sv)
JP (1) JPS513266B1 (sv)
AT (1) AT325501B (sv)
BE (1) BE752178A (sv)
BR (1) BR7020417D0 (sv)
CA (1) CA949523A (sv)
CH (1) CH528410A (sv)
CS (1) CS164866B2 (sv)
CY (1) CY683A (sv)
DK (1) DK133424B (sv)
ES (2) ES409648A1 (sv)
FI (1) FI52307C (sv)
FR (1) FR2057732A5 (sv)
GB (1) GB1294908A (sv)
HU (1) HU168125B (sv)
IE (1) IE34406B1 (sv)
MY (1) MY7300307A (sv)
NL (1) NL170515C (sv)
NO (1) NO131163C (sv)
PL (1) PL76470B1 (sv)
SE (1) SE330505B (sv)
SU (2) SU528860A3 (sv)
TR (1) TR17770A (sv)
YU (1) YU204770A (sv)
ZA (1) ZA705584B (sv)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768380A (en) * 1971-08-20 1973-10-30 Tetra Pak Dev Production of containers
US3892348A (en) * 1972-08-17 1975-07-01 Neher Ag Folding container
EP0105652A1 (en) * 1982-10-05 1984-04-18 Ab Tetra Pak Improvements in and relating to the edge-bonding of sheet material
US4671451A (en) * 1985-09-09 1987-06-09 Yeaman Packaging Group, Inc. Sleeve package having reverse tucked tabs for holding multiple aseptic cartons
US4693412A (en) * 1985-09-09 1987-09-15 Yeaman Packaging Group, Inc. Sleeve package having locking tabs for holding multiple aceptic cartons
US4971243A (en) * 1989-12-22 1990-11-20 Elopak Systems A.G. Composite single service container
CN102852866A (zh) * 2012-09-12 2013-01-02 昆山西马克动力机械有限公司 油箱
US20130048703A1 (en) * 2010-05-04 2013-02-28 Albrecht Fuchs Rectangular stand up thin film container
EP2687446A1 (de) * 2009-04-15 2014-01-22 Luna Technology Systems LTS GmbH Verfahren zum Herstellen einer Kapsel für ein Extraktionsgut

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH562130A5 (sv) * 1973-01-18 1975-05-30 Tetra Pak Dev
US3921367A (en) * 1973-10-11 1975-11-25 Francis Beaurain Process for conditioning liquid
SE422673B (sv) * 1978-07-03 1982-03-22 Tetra Pak Int Oppningsanordning for forpackningsbehallare
US4338766A (en) * 1979-03-09 1982-07-13 Hamilton Joel A Apparatus and method for producing a container for foods and the like
US4301639A (en) * 1979-03-09 1981-11-24 Hamilton Joel A Apparatus and method for producing a container for food and the like
SE449338B (sv) * 1981-08-13 1987-04-27 Tetra Pak Int Oppningsanordning for forpackningsbehallare
US4804137A (en) * 1987-12-11 1989-02-14 Harby Colin F Food container
JPH0454084Y2 (sv) * 1987-12-23 1992-12-18
US5038940A (en) * 1989-04-08 1991-08-13 Okabe Engineering Kabushiki Kaisha Collective packing box separable
EP0887261B1 (en) * 1997-06-27 2005-09-07 Tetra Laval Holdings & Finance SA High-speed folding unit for pourable food product packaging machines
EP1177976B1 (en) * 2000-07-03 2003-12-10 Tetra Laval Holdings & Finance S.A. Packaging machine for continuously producing sealed packages of a pourable food product and featuring programmable photocells

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB825610A (en) * 1957-01-17 1959-12-16 Lamson Paragon Ltd Improvements in and relating to bags or envelopes made of heat sealable plastic material
FR1183856A (fr) * 1957-05-28 1959-07-15 Nouveau procédé de fabrication d'emballages soudés
US3245197A (en) * 1962-08-20 1966-04-12 Ivers Lee Co Method and machine for making a package from flexible sheet material
US3325964A (en) * 1964-05-04 1967-06-20 Alton Box Board Co Package for books and method of making the same
US3345795A (en) * 1964-05-18 1967-10-10 Ralph F Anderson Method and apparatus for packaging bars of plastic material
CH434953A (de) * 1966-04-22 1967-04-30 Sig Schweiz Industrieges Vorrichtung zum Herstellen einer Packung
US3567074A (en) * 1968-10-25 1971-03-02 Cpc International Inc Pillow-type package that is convertible to a tetrahedronal package for mixing, storing and dispensing, with spray-type dispensing means
US3603217A (en) * 1969-01-16 1971-09-07 Robinson E S & A Canada Method of forming a bag

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768380A (en) * 1971-08-20 1973-10-30 Tetra Pak Dev Production of containers
US3892348A (en) * 1972-08-17 1975-07-01 Neher Ag Folding container
EP0105652A1 (en) * 1982-10-05 1984-04-18 Ab Tetra Pak Improvements in and relating to the edge-bonding of sheet material
US4671451A (en) * 1985-09-09 1987-06-09 Yeaman Packaging Group, Inc. Sleeve package having reverse tucked tabs for holding multiple aseptic cartons
US4693412A (en) * 1985-09-09 1987-09-15 Yeaman Packaging Group, Inc. Sleeve package having locking tabs for holding multiple aceptic cartons
US4971243A (en) * 1989-12-22 1990-11-20 Elopak Systems A.G. Composite single service container
US9375111B2 (en) 2009-04-15 2016-06-28 Qbo Coffee Gmbh Capsule for an extraction product, method for the production thereof, and device for brewing coffee
US10039410B2 (en) 2009-04-15 2018-08-07 Qbo Coffee Gmbh System for brewing coffee
US9730544B2 (en) 2009-04-15 2017-08-15 Qbo Coffee Gmbh Method for the production of a capsule for extraction product
EP2687446A1 (de) * 2009-04-15 2014-01-22 Luna Technology Systems LTS GmbH Verfahren zum Herstellen einer Kapsel für ein Extraktionsgut
US9033212B2 (en) * 2010-05-04 2015-05-19 Beth-El Zikhron Ya'akov Industries Ltd. Rectangular stand up thin film container
US20130048703A1 (en) * 2010-05-04 2013-02-28 Albrecht Fuchs Rectangular stand up thin film container
CN102852866A (zh) * 2012-09-12 2013-01-02 昆山西马克动力机械有限公司 油箱

Also Published As

Publication number Publication date
DK133424B (da) 1976-05-17
CY683A (en) 1973-05-04
HU168125B (sv) 1976-02-28
ZA705584B (en) 1971-05-27
JPS513266B1 (sv) 1976-02-02
NO131163C (sv) 1975-04-16
FR2057732A5 (sv) 1971-05-21
US3726058A (en) 1973-04-10
SE330505B (sv) 1970-11-16
YU204770A (en) 1982-06-30
MY7300307A (en) 1973-12-31
ES409648A1 (es) 1976-06-16
DK133424C (sv) 1976-10-11
FI52307C (sv) 1977-08-10
BR7020417D0 (pt) 1973-06-14
SU425381A3 (ru) 1974-04-25
BE752178A (fr) 1970-12-01
TR17770A (tr) 1976-07-01
GB1294908A (sv) 1972-11-01
IE34406L (en) 1971-02-13
CA949523A (en) 1974-06-18
ES188743Y (es) 1974-09-16
NL7011511A (sv) 1971-02-16
CH528410A (de) 1972-09-30
AT325501B (de) 1975-10-27
DE2032080A1 (de) 1971-03-04
NL170515B (nl) 1982-06-16
IE34406B1 (en) 1975-04-30
CS164866B2 (sv) 1975-11-28
ES188743U (es) 1974-03-16
FI52307B (sv) 1977-05-02
SU528860A3 (ru) 1976-09-15
NO131163B (sv) 1975-01-06
PL76470B1 (sv) 1975-02-28
NL170515C (nl) 1982-11-16

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