WO2019171287A1 - Capsule pour la préparation de boissons - Google Patents

Capsule pour la préparation de boissons Download PDF

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Publication number
WO2019171287A1
WO2019171287A1 PCT/IB2019/051803 IB2019051803W WO2019171287A1 WO 2019171287 A1 WO2019171287 A1 WO 2019171287A1 IB 2019051803 W IB2019051803 W IB 2019051803W WO 2019171287 A1 WO2019171287 A1 WO 2019171287A1
Authority
WO
WIPO (PCT)
Prior art keywords
capsule
filtering element
reliefs
bottom wall
side wall
Prior art date
Application number
PCT/IB2019/051803
Other languages
English (en)
Inventor
Andrea Bartoli
Davide CAPITINI
Original Assignee
Sarong Societa' Per Azioni
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 Sarong Societa' Per Azioni filed Critical Sarong Societa' Per Azioni
Publication of WO2019171287A1 publication Critical patent/WO2019171287A1/fr

Links

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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/8043—Packages adapted to allow liquid to pass through the contents

Definitions

  • the present invention relates to a capsule, or a similar container, provided with an inner filter adapted to contain a product for preparing a beverage, for instance coffee, tea or other beverages.
  • a filtering element or inner filter comprising an outer container or casing, made of plastic material, glass- or cup shaped, provided with a bottom wall and a side wall defining an open cavity.
  • the upper opening of the latter is air-tightly closed by a cover element such as to seal inside the cavity of the casing the filtering element containing the product from which the beverage is obtained.
  • the cover element and the bottom wall of the container are generally pierceable to allow the introduction of a liquid under pressure, typically water, (typically through a hole made on the cover element) and the extraction of the beverage obtained by percolation of the aforesaid liquid through the product (typically through a hole made on the bottom wall).
  • the filter which is shaped so as to form a respective upwardly-open cavity to contain the product, is welded to the side wall of the container at one upper peripheral edge thereof.
  • the filter divides the inside of the container into one first upper chamber containing the product and accessible through the upper opening of the container (to allow its filling) and a second lower chamber, comprised between the filter and the bottom wall and/or the side wall of the container, which receives the beverage obtained from the product.
  • the filter expands, as a result of the liquid pressure.
  • the filter dimensions are selected such that the expansion caused by the liquid pressure introduced into the capsule does not lead the filter to adhere to the side wall and/or to the bottom of the capsule.
  • the present invention intends to provide a capsule provided with an inner filter adapted to contain a product for preparing a beverage, in which the filter dimensions are maximized, the capsule having the same external dimensions, such that the volume of the filter inner cavity is also maximized for the filter within which a product for preparing a beverage is inserted.
  • the present invention also intends to provide a capsule configured such that the filter does not represent an obstacle for the beverage delivery, even if it contacts the side wall and/or the bottom of the capsule, expanding as a result of the liquid under pressure introduced into the capsule.
  • Figure 1 is a view from below of a first embodiment of a capsule according to the present invention.
  • Figure 2 is an elevation view of the capsule of Figure 1;
  • Figure 3 is a section of the capsule of Figures 1 and 2, according to line III-III of Figure 1;
  • Figure 4 is a section of the capsule of Figure 1 and 2, according to line IV-IV of Figure 2;
  • Figure 5 is a section of a detail of Figure 1, referred to as V in Figure 1;
  • Figure 6 is an enlarged detail of Figure 4, referred to as VI in Figure 4, before introducing a liquid under pressure into the capsule;
  • Figure 6a is the same detail of Figure 6, but after introducing a liquid under pressure into the capsule;
  • Figure 7 is a view from below of a second embodiment of a capsule according to the present invention.
  • Figure 8 is an elevation view of the capsule of Figure 7;
  • Figure 9 is a perspective view from below of the capsule of Figures 7 and 8;
  • Figure 10 is a view from below of a third embodiment of a capsule according to the present invention.
  • Figure 11 is an elevation view of the capsule of Figure 10;
  • Figure 12 is a perspective view from below of the capsule of Figures 10 and 11;
  • Figure 13 is a view from above of a fourth embodiment of a capsule according to the present invention devoid of the filtering element
  • Figure 14 is a section of the capsule of Figure 13, according to the plane XIV-XIV in Figure 13.
  • a capsule 1, usable in a beverage dispensing machine comprises a body 2, substantially glass-or cup-shaped, comprising in turn a bottom wall 3 and a side wall 4 defining an open cavity 5 within which a filtering element 8 is housed, arranged to contain an initial product, for example a food product, to be joined to a dispensing fluid, typically water, such as to obtain a final product.
  • the final product can be a beverage, such as for instance tea or coffee or other beverages.
  • the body 2 further comprises an annular- shaped flange 6, substantially flat, connected to the side wall 4, arranged around the opening 7 of the cavity 5 and extending radially from the side wall 4 towards the outside.
  • the filtering element 8 is shaped such as to realize a respective cavity 9 upwardly open to receive and contain the final product and comprises an edge 13 which delimits circumferentially its own upper opening 10.
  • the filtering element 8 is fixed to the body 2 at the flange 6 through its own edge 13, which is arranged at least partially overlapped to the flange 6 onto which it is fixed in a known way.
  • the filtering element 8 divides the cavity 5 in one first upper chamber 11, accessible through the upper opening 10 to be filled with the initial product, and a second lower chamber 12, comprised between the filtering element 8 and the bottom wall 3 and/or the side wall 4 of the body 2, arranged to receive the final product, such as for instance the beverage.
  • the filtering element 8 comprises a glass-shaped body or basket and it can be flexible or rigid.
  • the flexible-type filtering element 8 is for instance made of recyclable or compostable material of the known type, in particular of a non-tissue material containing plastics fibres.
  • the rigid-type filtering material 8 is on the contrary a rigid body, that is a self bearing rigid body, perforated or in any case provided with pass-through openings, for instance made of recyclable or compostable material, in particular obtained by thermoforming of plastic material.
  • the cavity 5 can be closed by a cover, not shown in the figures, for instance composed of a pierceable film fixed to the flange 6 in a known way.
  • a cover not shown in the figures, for instance composed of a pierceable film fixed to the flange 6 in a known way.
  • the capsule cover 1 can be pierced by injection means of a dispensing machine to allow the introduction of the dispensing fluid, typically water, at a certain pressure, with which the beverage is prepared.
  • a dispensing machine typically water
  • the bottom wall 3 can be also pierced by extraction means of the dispensing machine which allow the product to pass from the second chamber 12 outwardly of the capsule 1 and thus allow the beverage delivery.
  • the internal surface 14 of the side wall 4 includes a plurality of grooves 15 alternating with a plurality of reliefs 16 which extend from a zone closer to the flange 6 until the bottom wall 3.
  • the grooves 15 and the filtering element 8 delimit channels 17 for the passage of the beverage or final product obtained by the dispensing fluid introduced in the capsule outflowing from the filtering element 8.
  • the grooves 15 are tapered between an upper larger portion and a lower narrower portion, the upper portion being closer to the flange 6 and the lower portion being closer to the bottom wall 3.
  • reliefs 16 have a smaller width in an upper region near the flange 6 and a larger width in a lower region near the bottom wall 3.
  • the upward or downward tapered shape of reliefs and grooves can be opposite to the illustrated one, i.e. the reliefs have larger width in the upper region and smaller width in the lower region.
  • Internal channels and reliefs are related to analogue and complimentary external channels and reliefs, therefore an internal groove is related to an external relief and vice versa.
  • the side wall 4 has a wavy-wall shape, in particular with uniform waves, i.e. wherein grooves and reliefs have an average width substantially equal between them.
  • grooves 15 and reliefs 16 are sized in such a way as to check the beverage preparation and delivery conditions within the capsule.
  • the average height Hm of reliefs 16, i.e. the average distance measured in the radial direction between the top 20 of a relief 16 and a bottom 21 of a groove 15 adjacent to such relief 16 is not less than 1/6 of the average width Lm of the groove 15 itself, where the average width Lm is the average distance measured in the circumferential direction between the two end sides of a same groove 15.
  • the average height Hm of reliefs 16 is greater than or equal to 1/3 of the average width Lm of the groove 15 itself.
  • the average height Hm of reliefs 16 can be for instance of about 0.55 mm.
  • the number of grooves/reliefs present on the side wall is of 36 grooves/reliefs.
  • reliefs 16 serve as contact zones for the wall of the filtering element 8.
  • the average dimensions Hm, Lm of reliefs 16 and groves 15 prevent the filtering element 8, which expands as a result of the dispensing fluid pressure, from adhering to the side wall 4 of the capsule 1, hindering the delivery of the beverage.
  • the wall of the filtering element 8 tends to approach the side wall 4, however the dimensions of grooves 15 and reliefs 16 are such that the wall of the filtering element 8 is prevented from laying completely on the internal surface 14. Channels 17 are thus free for the passage of the liquid under pressure.
  • the filtering element 8 is rigid, grooves 15 and reliefs 16 having pre- established dimensions ensure a passage always free for the dispensing fluid and thus allow a definite control on the pressure for preparing and dispensing the beverage. Furthermore, in both versions with the flexible-type or rigid-type filtering element 8, the average diameter of the body 2 of the capsule 1 being equal, the volume available for the product which is to be contained within the filtering element 8 can be greater than that of a capsule of the known-type as the expansion of the filtering element 8 is no longer a limiting aspect on the dimension of the filter.
  • the quantity of beverage that can be obtained, the capsule external dimensions being equal, is greater, because the filtering element 8 can have an initial greater volume and can thus house a greater quantity of initial product.
  • the capsule 1 provided with grooves 15 and reliefs 16 can have smaller average dimensions than a capsule of the known-type.
  • reliefs 16 act as stiffening ribs which strengthen the side wall 4 of the capsule, making it more stable and less susceptible to deformation when, while being used, it undergoes a certain compression by the dispensing machine in particular when the cover and the bottom wall 3 are pierced.
  • the filtering element 8 is not only fixed to the flange 6 but also to the inner surface 14 of the side wall 4 at one or more reliefs 16.
  • the filtering element 8 whether it is flexible or rigid, can be fixed to reliefs 16 by thermo -welding or by ultrasonic welding techniques.
  • the capsule 1 can comprise inner protrusions also in the bottom wall 3, which in this case is not completely flat.
  • An inner face 22 of the bottom wall 3 comprises a plurality of radial projections 26 radially extending from a peripheral zone 23 of the inner face 22 to a central zone 24 of the inner face 22, such central zone 24 being able to comprise a portion of relief 25 in the form of a cylinder relief arranged in the middle of the inner face 22.
  • Radial projections 26 on the bottom wall 3 extend along radii of capsule 1 corresponding to determined reliefs 16 of the side wall 4, such as to define ribs for the bottom wall 3 matching with corresponding ribs of the side wall 4.
  • the number of radial ribs 26 is for instance lower than the relief 16 one, in particular a radial projection 26 is provided every two reliefs 16, so that on the side wall 4 a relief 16 having continuity with a radial projection 26 alternates to a subsequent relief 16 terminating into the side wall 4 without proceeding in the bottom wall 3.
  • the radial projections 26 are thus angularly equidistant between them.
  • the radial projections 26 have width T substantially equal to the one of reliefs 16 at the lower region.
  • width T is substantially constant along the radial direction proceeding from the peripheral zone 23 to the central zone 24.
  • radial projections 26 can have variable width along the radial direction, for example reducing from the peripheral zone 23 to the central zone 24.
  • a radial channel 27 is therefore defined wherein the final product is gathered, before exiting from the capsule 1 through one or more holes made on the bottom wall 3 by the dispensing machine extraction means.
  • Each radial channel 27 has lower width near the central zone 24 and greater width near the peripheral zone 23.
  • the average height Zm of radial projections 26 with respect to the bottom of radial channels 27 is substantially equal to the average height Hm of the reliefs 16 on the side wall 4.
  • such average height Zm of radial projections 26 can be different from Hm, for instance greater or lower.
  • the portion of relief 25 comprises a plane surface 30 which is at a height from the bottom of the radial channels 27 substantially equal to the average height Zm of radial projections.
  • the radial projections 26 too and/or the portion of relief 25 serve as contact zones of the wall of the filtering element 8, in particular for a base portion 28 of the filtering element 8.
  • the filtering element 8 can for instance stand on the radial projections 26.
  • the radial projections 26 and/or the portion of relief 25 prevent the filtering element 8, which expands as a result of the pressure of the dispensing fluid, from adhering to the bottom wall 3 of the capsule 1, hindering the beverage delivery.
  • the base portion 28 of the filtering element 8 tends to approach to the bottom wall 3, however the dimensions of the radial projection 26 are such as to prevent the filtering element 8 from laying completely on the inner face 22.
  • Radial channels 27 remain thus free for the passage of the beverage, which is formed by the liquid under pressure which has passed through the initial product and the wall of the filtering element 8.
  • radial projections 26 and/or the portion of relief 25 ensure free passages for the beverage and thus allow a definite monitoring on the pressure for preparing the beverage and the dispensing speed.
  • the base portion 28 can be fixed to the bottom wall 3 at one or more of the radial projections 26 and/or of the portion of relief 25. Fixing can occur for instance by thermo-welding, or by ultrasonic welding, in case materials used for the body 2 and the filtering element 8 can be thermo- welded.
  • the flat annular portion 31 surrounds the annular region 33 including a circular arrangement of inner radial reliefs 36, angularly spaced, which resembles the arrangement of a garland of petals at which centre a cylindrical relief defining the portion of relief 25 can be present.
  • the version as per Figures 10-12 differs from the version as per Figures 7-9 in that the side wall 4 connects with the peripheral region 23 of the bottom wall 3 by means of a curved portion 29 in which grooves 15 and reliefs 16 of the cup-shaped portion of the side wall 4 continue as curved surfaces with no interruptions.
  • the base portion 28 of the filtering element 8 can be in contact with radial reliefs 36, as, in function, the presence of free passages for the dispensing fluid in the regions adjacent to radial reliefs 36 is ensured.
  • the filtering element 8 can be fixed to one or more radial reliefs 36 and/or to the portion of relief 25 with the same advantages of the above described versions.
  • Radial reliefs 36 on the bottom wall 3 are positioned at radii of the capsule 101, 201 corresponding to those of determined reliefs 16 of the side wall 4.
  • Internal reliefs 36 and 25 correspond to depressions on the external face 32 of the bottom body 3, therefore a garland of petals made of depressions is visible at the outside of the capsule 101, 201 as shown in Figures 9 and 12.
  • the garland of petals gives the capsule a unique aspect and can be associated to a type of beverage or flavour, to distinguish the capsule from those having another arrangement of reliefs or depressions, composing a different decoration, which another beverage or flavour can be associated to.
  • the shape and arrangement of radial reliefs 36 can be different from the illustrated garland of petals. For instance, there may be non-radial reliefs reproducing a geometrical pattern or a logo, thereby allowing the capsule personalization. In particular, the geometrical pattern or logo can occupy the annular region 33 possibly in relief.
  • the filtering element 8 can be formed by pressing directly within the cavity 5 of the body 2. Fixing the filtering element 8 to reliefs 16 of the side wall 4 and/or radial projections 26 and/or radial reliefs 36 of the bottom wall 3 provides the advantage to hold the filtering element 8 in position once it has been shaped, such as to reduce the post-forming elastic return which the flexible-type filtering element 8 is subjected to, keeping a greater volume available for the initial product to be placed inside the filtering element 8.
  • the capsule 301 differently from the version of Figure 7, comprises radial reliefs 36 on the bottom wall 3 which are at the radii of the capsule 301 in between two consecutive reliefs 16 on the side wall 4, that is radii of the capsule corresponding to grooves 15.
  • grooves 15 are tapered between an upper larger portion 18 and a lower narrower portion 19, the upper portion 18 being closer to the flange 6 and the lower portion 19 being closer to the bottom wall 3.
  • reliefs 16 have smaller width in an upper region 38 near the flange 6 and greater width in a lower region 39 near the bottom wall 3.
  • the upward or downward tapered shape of reliefs and grooves can be opposite to the illustrated one, that is reliefs have larger width in the upper region and smaller width in the lower region.
  • the height of the radial reliefs 36 inside the bottom wall 3 is substantially similar to that of the portion central relief 25.
  • the side wall 4 of the body 2 comprises an upper part 34, for example annular- shaped, directly connected to the flange 6 and a truncated-cone lower part 35 with grooves 15 and reliefs 16.
  • the upper part 34 and the lower part 35 are connected by a portion of substantially horizontal wall 37 forming a step.
  • Radial projections or radial reliefs on the bottom wall allow to ensure free passages for the dispensing fluid and to make the bottom wall more rigid, which can be pierced at radial channels or at the flat annular region 31 near the peripheral zone 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Medicinal Preparation (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

L'invention concerne une capsule (1) destinée à préparer une boisson, comportant un corps (2) en forme de verre ou de tasse comportant successivement: une paroi (3) de fond et une paroi latérale (4) définissant une cavité ouverte (5) et une collerette (6) reliée à la paroi latérale (4) et s'étendant autour d'une ouverture (7) de la cavité (5); un élément filtrant (8) prévu pour contenir un produit initial destiné à préparer la boisson, l'élément filtrant (8) étant fixé à la collerette (6); la paroi latérale (4) comportant dans sa surface intérieure (14) une pluralité de rainures (15) alternant avec une pluralité de reliefs (16), les rainures (15) et l'élément filtrant (8) délimitant des canaux (17) pour le passage de la boisson obtenue par un fluide de distribution introduit dans la capsule (1) et passant à travers l'élément filtrant (8).
PCT/IB2019/051803 2018-03-06 2019-03-06 Capsule pour la préparation de boissons WO2019171287A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102018000003319A IT201800003319A1 (it) 2018-03-06 2018-03-06 Capsula per la preparazione di bevande
IT102018000003319 2018-03-06

Publications (1)

Publication Number Publication Date
WO2019171287A1 true WO2019171287A1 (fr) 2019-09-12

Family

ID=62386773

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2019/051803 WO2019171287A1 (fr) 2018-03-06 2019-03-06 Capsule pour la préparation de boissons

Country Status (2)

Country Link
IT (1) IT201800003319A1 (fr)
WO (1) WO2019171287A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013032330A1 (fr) * 2011-09-02 2013-03-07 Koninklijke Douwe Egberts B.V. Cartouche de filtre de boisson
WO2013032331A1 (fr) * 2011-09-02 2013-03-07 Koninklijke Douwe Egberts B.V. Ensemble filtre de boisson
WO2014043106A1 (fr) * 2012-09-12 2014-03-20 Kraft Foods R & D, Inc. Cartouche, systèmes et procédés de préparation de boissons
US20140220190A1 (en) * 2013-02-04 2014-08-07 Coffee Star S.A. Capsule for the Preparation of Beverages
WO2016087981A1 (fr) * 2014-12-03 2016-06-09 Caffitaly System S.P.A. Corps de contenant pour réaliser une capsule pour réaliser des boissons, et procédé pour réaliser des capsules avec des quantités différentes de substance alimentaire en poudre à l'aide d'un type unique de corps de contenant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013032330A1 (fr) * 2011-09-02 2013-03-07 Koninklijke Douwe Egberts B.V. Cartouche de filtre de boisson
WO2013032331A1 (fr) * 2011-09-02 2013-03-07 Koninklijke Douwe Egberts B.V. Ensemble filtre de boisson
WO2014043106A1 (fr) * 2012-09-12 2014-03-20 Kraft Foods R & D, Inc. Cartouche, systèmes et procédés de préparation de boissons
US20140220190A1 (en) * 2013-02-04 2014-08-07 Coffee Star S.A. Capsule for the Preparation of Beverages
WO2016087981A1 (fr) * 2014-12-03 2016-06-09 Caffitaly System S.P.A. Corps de contenant pour réaliser une capsule pour réaliser des boissons, et procédé pour réaliser des capsules avec des quantités différentes de substance alimentaire en poudre à l'aide d'un type unique de corps de contenant

Also Published As

Publication number Publication date
IT201800003319A1 (it) 2019-09-06

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