US20110212225A1 - Capsule for preparing a beverage - Google Patents

Capsule for preparing a beverage Download PDF

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Publication number
US20110212225A1
US20110212225A1 US13/122,071 US200913122071A US2011212225A1 US 20110212225 A1 US20110212225 A1 US 20110212225A1 US 200913122071 A US200913122071 A US 200913122071A US 2011212225 A1 US2011212225 A1 US 2011212225A1
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US
United States
Prior art keywords
capsule
top wall
beverage
preparing
weakened zone
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.)
Abandoned
Application number
US13/122,071
Inventor
Alain Mariller
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.)
Ethical Coffee Co SA
Original Assignee
Ethical Coffee Co SA
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 Ethical Coffee Co SA filed Critical Ethical Coffee Co SA
Assigned to ETHICAL COFFEE COMPANY SA reassignment ETHICAL COFFEE COMPANY SA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MARILLER, ALAIN
Publication of US20110212225A1 publication Critical patent/US20110212225A1/en
Assigned to ARMAS INTERNATIONAL LIMITED reassignment ARMAS INTERNATIONAL LIMITED SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ETHICAL COFFEE COMPANY (SUISSE) SA, ETHICAL COFFEE COMPANY SA, ETHICAL COFFEE CORPORATION
Abandoned 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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • 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
    • B65D85/8046—Pods, i.e. closed containers made only of filter paper or similar material

Definitions

  • the present invention falls within the field of the preparation of beverages, e.g. coffee-based beverages, by extraction of a concentrated portion, e.g. of ground coffee, contained in a capsule. It relates more specifically to the portions used for this purpose and to the devices that use such portions.
  • Patents U.S. Pat. No. 2,899,886, U.S. Pat. No. 2,968,560, U.S. Pat. No. 3,403,617 and U.S. Pat. No. 3,607,297 describe devices in which the capsule is first of all perforated at several points, then has water pass through it under pressure.
  • the capsule described in patent CH 605 293 or in patent EP 0 242 556 B1 comprises a membrane in its lower part. Water under pressure is first of all introduced into the top part of the capsule, after said capsule has been pierced by means of a cutting element (e.g. a blade), and this causes the capsule to swell, mainly in the region of the membrane. Beyond a certain pressure, the membrane tears, thereby allowing a water-coffee mixture to flow out.
  • a cutting element e.g. a blade
  • the present invention comprises a number of improvements over the capsules of the prior art. Specifically, it relates to a capsule for preparing a beverage, for example coffee, comprising a hollow element intended to contain a portion, e.g. of ground coffee, said hollow element comprising a side wall, a top wall and a bottom wall comprising an extraction membrane; the top wall comprising on its internal face a weakened zone designed to undergo a movement when an external element applies force to it, thus offering a passage via which liquid can flow between the outside and the inside of the capsule.
  • One of the advantages offered by the present invention lies in the possibility of forming liquid outflow passages of sufficiently wide cross section. That is particularly true of capsules made of a biodegradable material. This material has a tendency to swell in the presence of liquid. If the weakened zone is not of sufficiently wide cross section then the piercing of the capsule by a cutting element will not allow the liquid to flow out sufficiently through the pierced zone.
  • FIG. 1 illustrates a first example of a capsule according to the invention
  • FIG. 2 illustrates an alternative form of the top part of the capsule of FIG. 1
  • FIG. 3 illustrates another alternative form of the top part of the capsule of FIG. 1
  • FIG. 4 shows the inside of the capsule of FIG. 1
  • FIG. 5 illustrates an enlargement of part of the inside of the capsule of FIG. 1
  • FIG. 6 illustrates a depression on the external face of the side wall
  • FIG. 7 shows a second example of a capsule according to the invention
  • FIG. 8 shows a third example of a capsule according to the invention
  • FIGS. 9 and 10 illustrate the weakened zone positioned on the internal face of the top wall
  • FIGS. 11 and 12 illustrate the rupturing of the weakened zone.
  • the internal top part of the capsule is provided with a beading of material in the region of the elements that pierce the capsule (see FIG. 4 ).
  • Rupture initiators are positioned along the side edges of the beading. When a piercing element applies sufficient pressure to the region of the beading, the rupture initiators yield and this has the effect of allowing water to enter the capsule (see FIGS. 9-12 ).
  • the capsule is made of a biodegradable material.
  • the biodegradable material may be of plant origin.
  • the material comprises the following components: starch (>70%), fibers, proteins, lipids, glycerin of plant origin, biodegradable resins.
  • the material comprises the following components: starch (>70%), fibers, proteins, lipids, biodegradable resin, inorganic coloring.
  • the capsule according to the invention can also be used with devices of the state of the art which are equipped with blades for letting water into the capsule.

Abstract

The invention relates to a capsule for preparing a beverage, for example coffee, comprising a hollow element intended to contain a metered amount, for example of ground coffee, said hollow element including a side wall, a top wall and a bottom wall comprising an extraction membrane; the top wall comprising, on the inner surface thereof, a weakened area capable of moving when an external element exerts a force thereon, thereby providing a passage for the liquid to flow between the outside and the inside of the capsule

Description

    FIELD OF THE INVENTION
  • The present invention falls within the field of the preparation of beverages, e.g. coffee-based beverages, by extraction of a concentrated portion, e.g. of ground coffee, contained in a capsule. It relates more specifically to the portions used for this purpose and to the devices that use such portions.
    • PRIOR ART
  • Capsules and machines operating on the abovementioned principle have been in existence for many decades.
  • Patents U.S. Pat. No. 2,899,886, U.S. Pat. No. 2,968,560, U.S. Pat. No. 3,403,617 and U.S. Pat. No. 3,607,297 describe devices in which the capsule is first of all perforated at several points, then has water pass through it under pressure.
  • The capsule described in patent CH 605 293 or in patent EP 0 242 556 B1 comprises a membrane in its lower part. Water under pressure is first of all introduced into the top part of the capsule, after said capsule has been pierced by means of a cutting element (e.g. a blade), and this causes the capsule to swell, mainly in the region of the membrane. Beyond a certain pressure, the membrane tears, thereby allowing a water-coffee mixture to flow out.
  • Other capsules equipped with a membrane are described in the following patent documents: EP 0 468 079 A, EP 0 806 373 A, EP 0 554 469 A.
    • SUMMARY OF THE INVENTION
  • The present invention comprises a number of improvements over the capsules of the prior art. Specifically, it relates to a capsule for preparing a beverage, for example coffee, comprising a hollow element intended to contain a portion, e.g. of ground coffee, said hollow element comprising a side wall, a top wall and a bottom wall comprising an extraction membrane; the top wall comprising on its internal face a weakened zone designed to undergo a movement when an external element applies force to it, thus offering a passage via which liquid can flow between the outside and the inside of the capsule.
  • One of the advantages offered by the present invention lies in the possibility of forming liquid outflow passages of sufficiently wide cross section. That is particularly true of capsules made of a biodegradable material. This material has a tendency to swell in the presence of liquid. If the weakened zone is not of sufficiently wide cross section then the piercing of the capsule by a cutting element will not allow the liquid to flow out sufficiently through the pierced zone.
  • By providing the capsule according to the invention with a weakened zone of wide cross section, it is possible to guarantee that there will be outflow space.
    • DETAILED DESCRIPTION OF THE INVENTION
  • The invention is described in greater detail hereinafter by means of some nonlimiting examples illustrated by the following figures:
  • FIG. 1 illustrates a first example of a capsule according to the invention
  • FIG. 2 illustrates an alternative form of the top part of the capsule of FIG. 1
  • FIG. 3 illustrates another alternative form of the top part of the capsule of FIG. 1
  • FIG. 4 shows the inside of the capsule of FIG. 1
  • FIG. 5 illustrates an enlargement of part of the inside of the capsule of FIG. 1
  • FIG. 6 illustrates a depression on the external face of the side wall
  • FIG. 7 shows a second example of a capsule according to the invention
  • FIG. 8 shows a third example of a capsule according to the invention
  • FIGS. 9 and 10 illustrate the weakened zone positioned on the internal face of the top wall
  • FIGS. 11 and 12 illustrate the rupturing of the weakened zone.
    •
  • List of numerical references used in the figures:
      • 1. capsule
      • 2. side wall
      • 3. top wall
      • 4. bottom wall
      • 5. cavity
      • 6. top wall stiffening element
      • 7. side wall stiffening element
      • 8. top edge stiffening element
      • 9. internal protrusion
      • 10. beading
      • 11. weakened zone
      • 12. piercing element
  • The following features associated with the capsule according to the invention are worthy of particular note:
    • a) The top part of the capsule is reinforced by an architecture known as an “exposed beams”, “reinforcing” or “framework” architecture the purpose of which is to reinforce the capsule in its ability to withstand the pressure of the water and at the time of its perforation. It is also possible to obtain a reinforced structure using folds of material. The rigidity may also be reinforced using an architecture of the “exposed beams” or “framework” type which is concave in relation to the capsule (see FIG. 2).
  • Using this structure, it is possible to reduce the amount of material used, e.g. the amount of biodegradable material, of fine material of the PET or metal type or any other petroleum-derivative-based material.
    • b) The inside of the capsule has projecting internal elements or a circumferential rim the purpose of which is to prevent the empty capsules from becoming wedged together before they are filled at the factory. These same projecting elements also provide the capsule with lateral reinforcement (see FIG. 4).
    • c) On the outside of the capsule, opposite each projecting element or opposite a circumferential rim, a cavity is created which strengthens the lateral parts of the capsule through a framework effect while at the same time saving on material (see cross section) and in particular allows the use of biodegradable material and fine materials of the PET or metal type or any other petroleum-derived material. The lateral reinforcement of the capsule may also be created by folds of the material (see FIGS. 5-6).
    • d) The outer lateral part of the capsule has facets which may extend as far as the vicinity of the bottom part of the capsule or over a certain distance in the heightwise direction. In this alternative form also, it is therefore possible to save on material while at the same time reinforcing the lateral parts of the capsule (see FIGS. 7-8).
  • To sum up, all the reinforcing systems mentioned hereinabove allow rigidity to be achieved using less material and make it possible to make advantageous use of biodegradable materials or of any other material of the (PET, metal) type, or of any other petroleum- derived material.
  • The internal top part of the capsule is provided with a beading of material in the region of the elements that pierce the capsule (see FIG. 4).
  • Rupture initiators are positioned along the side edges of the beading. When a piercing element applies sufficient pressure to the region of the beading, the rupture initiators yield and this has the effect of allowing water to enter the capsule (see FIGS. 9-12).
  • The invention is not restricted to the examples illustrated.
  • Any reinforcing structure whatever is conceivable.
  • For preference, the capsule is made of a biodegradable material.
  • Advantageously, the biodegradable material may be of plant origin.
  • According to an alternative form, the material comprises the following components: starch (>70%), fibers, proteins, lipids, glycerin of plant origin, biodegradable resins.
  • According to another alternative form, the material comprises the following components: starch (>70%), fibers, proteins, lipids, biodegradable resin, inorganic coloring.
  • Finally, it should be pointed out that the capsule according to the invention can also be used with devices of the state of the art which are equipped with blades for letting water into the capsule.

Claims (8)

1. A capsule (1) for preparing a beverage, for example coffee, comprising a hollow element intended to contain a portion, e.g. of ground coffee, said hollow element comprising a side wall (2), a top wall (3) and a bottom wall (4) comprising an extraction membrane; the top wall (3) comprising on its internal face a weakened zone (11) designed to undergo a movement when an external element (12) applies force to it, thus offering a passage via which liquid can flow between the outside and the inside of the capsule (1).
2. The capsule as claimed in claim 1, in which said weakened zone is in the form of beading the edges of which are of a thickness less than the mean thickness of the top wall.
3. The capsule as claimed in claim 1, in which the cross section of the weakened zone is greater than the cross section of said external element.
4. The capsule as claimed in claim 1, comprising lateral cavities with which internal protrusions are associated.
5. The capsule as claimed in claim 1, comprising elements which reinforce its rigidity.
6. The capsule as claimed in claim 5, in which said reinforcing elements are positioned on the top wall of the capsule.
7. The capsule as claimed in claim 5, in which said reinforcing elements are positioned on the side wall of the capsule.
8. A capsule for preparing a beverage, for example coffee, which capsule is made of a biodegradable material containing the following elements: starch (>70%), fibers, proteins, lipids and at least one biodegradable resin.
US13/122,071 2008-10-08 2009-10-02 Capsule for preparing a beverage Abandoned US20110212225A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IBPCTIB2008/054130 2008-10-08
IB2008054130 2008-10-08
PCT/IB2009/054314 WO2010041179A2 (en) 2008-10-08 2009-10-02 Capsule for preparing a beverage

Publications (1)

Publication Number Publication Date
US20110212225A1 true US20110212225A1 (en) 2011-09-01

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US (1) US20110212225A1 (en)
EP (1) EP2337753B1 (en)
JP (1) JP2012505128A (en)
CN (1) CN102186747B (en)
BR (1) BRPI0920315A2 (en)
ES (1) ES2410059T3 (en)
WO (1) WO2010041179A2 (en)

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EP2337753A2 (en) 2011-06-29
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ES2410059T3 (en) 2013-06-28
WO2010041179A3 (en) 2010-09-02

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