EP1495992A1 - Sachet d'infusion de café - Google Patents

Sachet d'infusion de café Download PDF

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Publication number
EP1495992A1
EP1495992A1 EP03015287A EP03015287A EP1495992A1 EP 1495992 A1 EP1495992 A1 EP 1495992A1 EP 03015287 A EP03015287 A EP 03015287A EP 03015287 A EP03015287 A EP 03015287A EP 1495992 A1 EP1495992 A1 EP 1495992A1
Authority
EP
European Patent Office
Prior art keywords
coffee
infusion bag
chamber
bag
coffee infusion
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.)
Withdrawn
Application number
EP03015287A
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German (de)
English (en)
Inventor
Ulrik Skovgaard Rasmussen
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.)
Columbus E ApS
Original Assignee
Columbus E ApS
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 Columbus E ApS filed Critical Columbus E ApS
Priority to EP03015287A priority Critical patent/EP1495992A1/fr
Publication of EP1495992A1 publication Critical patent/EP1495992A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags
    • 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
    • B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags
    • B65D85/812—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags with features facilitating their manipulation or suspension

Definitions

  • the invention relates to coffee infusion bag as described in claim 1.
  • Coffee infusion bags are well known for the purpose of providing an alternative to conventional filtered coffee and instant coffee.
  • Filtered coffee on the one hand provides a high-quality coffee product whereas instant coffee on the other hand offers a high degree of flexibility.
  • US patent 4,844,914 One example of a coffee infusion bag is disclosed in US patent 4,844,914.
  • the disclosed coffee bag is provided with a rigid handle facilitating the establishment of a pump-through like movement, by means of which water may be pumped through the bag.
  • a problem of the disclosed bag is that the obtained flow through the bag requires quite some handling by a user.
  • the invention relates to a coffee infusion bag comprising at least one chamber, at least a part of said at least one chamber being formed by a filter material, wherein said at least one chamber is more than 25 cubic centimeters, more preferably at least 50 cubic centimeters in its expanded position.
  • the initially unexpanded infusion bag should be expanded substantially when lowered into the liquid, typically hot water, in order to obtain a satisfactory coffee brew.
  • the coffee bag should preferably almost fill up the container when expanded.
  • such infusible bags should preferably be carefully designed to fit into the expected container to be used.
  • Coffee material e.g. powder
  • tea a very good interaction between the coffee material and the water is needed in order to obtain a satisfactory brew.
  • the coffee infusion bag comprises at least one chamber according to claim 1, wherein said at least one chamber being expandable in a ratio of at least two to one.
  • the coffee infusion bag comprises at least one chamber according to claim 1 or 2, wherein at least a part of said at least one chamber being formed by a filter material, said at least one chamber being expandable in the vertical direction when positioned in a container in a ratio of at least two to one.
  • said at least one chamber is more than at least 100 cubic centimeters in its expanded position, preferably more than 200 cubic centimeters.
  • the bag has a cross-section (in the vertical direction) of at least four square centimeters in its unexpanded position.
  • said coffee infusion bag being formed with a handle fitted in the upper end of the coffee bag.
  • said coffee infusion bag being fitted with a handle mechanically communicating with the bottom of the coffee infusion bag.
  • said filter material comprising filter paper.
  • said coffee material moreover comprises a soluble additive.
  • said soluble material comprises sweetener.
  • said soluble material comprises cream.
  • At least a part of said at least one chamber being formed by a filter material defines accommodation areas or volumes on which coffee may rest or accommodate when the infusion bag is expanding, thereby distributing the coffee over the filter material.
  • the expansion of the chamber may moreover not only increase the volume of liquid, typically water, but also facilitate a distribution of the coffee material within this increased volume.
  • said accommodation areas or volumes comprises infusible compartments, mechanically connected to said chamber so as to mutually displaced when the chamber is expanded.
  • a multi-chamber bag may be applied for the purpose of distributing the infusible material, e.g. the coffee, as much as possible in the liquid, when the bag is expanded in the liquid, typically water, during the brew.
  • the infusible material e.g. the coffee
  • the coffee bag comprises at least one liquid inlet.
  • the coffee bag comprises at least one liquid inlet formed in the top of the coffee bag.
  • the liquid inlet comprised in the top of the coffee bag forms comprises a funnel.
  • the amount of coffee powder is between 2 grams to 30 grams.
  • a flow may be provided through the infusion bag, initially without the need of imparting any pressure downwards, when the infusion bag is positioned in a fluid holding container, such as a cup.
  • a fluid holding container such as a cup.
  • the prime direction of expansion obtained in the up down direction and moreover, the bag may facilitate a substantial expansion. This fact, moreover, facilitates a substantial increasing of the volume of the at least one chamber.
  • the handle facilitates a compression of the infusion bag by pulling whereas the expansion may eventually be established more or passive. In this way spilling or splashing associated with a kind of pumping movements may be avoided or at least counteracted.
  • At least a part of said at least one chamber being formed by a filter material defines accommodation areas or volumes on which coffee may rest or accommodate when the infusion bag is expanding, thereby distributing the coffee over the filter material.
  • Fig. 1a and 1b illustrate a coffee infusion bag 10 according to an embodiment of the invention comprising a square like foundation.
  • the coffee bag 10 is fitted with a handle 12 in the form of a string fitted in the top of the bag 10.
  • the handle 12 may comprise any suitable material, e.g. a plastic string, flexible rubber, polyester string, etc.
  • the illustrated coffee infusion bag 10 comprises an inner volume indicated by arrow 11.
  • the illustrated coffee bag contains a quantity of finely grounded coffee beans (not shown).
  • the coffee infusion bag is unexpanded and the bag may be dipped into e.g. a liquid containing cup, typically hot water, and thereby obtaining a coffee brew.
  • the illustrated coffee infusion bag has a square-like foundation, from which the internal volume may be increased "vertically".
  • any suitable shape of the foundation may be applied according to the invention.
  • the illustrated coffee bag In its unexpanded position, the illustrated coffee bag may have a height of approximately between 3mm to 20mm, typically not more than 8mm.
  • the coffee infusion bag is expanded and the internal volume 11 is increased.
  • the expansion may be performed prior to any dipping into the liquid or, preferably, expanded subsequently to the dipping.
  • the illustrated coffee bag In its expanded position, the illustrated coffee bag may have a height of approximately between 30mm to 120mm, typically not less than 40mm.
  • the initially unexpanded infusion bag 10 should be expanded substantially when lowered into liquid, typically hot water, in order to obtain a satisfactory coffee brew.
  • the volume of the internal coffee containing chamber(s) must be expanded substantially in order to obtain a high-quality brew.
  • the infusion bag may preferably be lowered into a relatively small open container, such as a cup made of china, glass, metal, paper, etc.
  • the walls of the infusion bag 10 are wholly or partly porous. It may be formed of any suitable polymeric, fibrous or paper-like material.
  • the mesh size should be sufficiently small to ensure that the infusible coffee material contained in the bag is kept within the bag or the chambers of the bag.
  • the mesh size should be sufficiently large to facilitate relatively unhindered infusion of the soluble base into the bag.
  • the fabric thickness may vary significantly within the scope of the invention, depending on the applied infusible material, type, grinding, etc. and the desired purpose.
  • Infusion bags according to the invention may have different sizes such that one or more cups or containers may be produced by one or several infusion bags.
  • the size in combination with the applied materials and infusible coffee should facilitate the brewing of one cup of coffee.
  • the coffee applied as infusible material according to the invention is preferably powdered.
  • the powdered coffee residing within the chamber defining infusion bag may be of very different nature, depending on purpose and desired aroma.
  • Some types of coffee powder have the texture of fine sand or cornmeal. It is the most popular and versatile grind used for the drip machine, flip-drip, filter drip or press pot.
  • Finest grind almost powdery may e.g. be applied for making espresso, or brewing regular coffee in a vacuum pot.
  • coffee powder includes any state and form of loose particles.
  • roasting of the coffee may vary depending on the desired end-aroma.
  • the amount of coffee in the bag may vary significantly, again depending on the nature of the bag, the applied coffee powder and not least the desired aroma.
  • the amount of coffee powder may e.g. vary between 2 grams to 30 grams, preferably from 5 grams to 15 grams depending on the tamped density and quality of the coffee powder.
  • the volume of coffee powder may e.g. vary between 1 cc to 15 cc, preferably from 2 cc to 12 cc, again depending on the tamped density and quality of the coffee powder.
  • the illustrated coffee bag 10 facilitates a high-quality brewing due to the high-volume expansion obtained according to the invention.
  • liquid typically hot water
  • the large infusion volume 11 facilitates an improved interaction between the coffee powder, and the soluble base, typically water.
  • the inner-space of the infusion bag must be as large as possible in order to create and efficient infusion. Thereby at least temporary water flow around the individual powdered coffee particles invoked during infusion and/or the expansion of the coffee infusion bag. Moreover, this large-space requirement leads to water not turning cold before a satisfactory brew is obtained.
  • the coffee infusion bag chamber(s) should form an accordion- or bellows-like expandable chamber or chambers. This is due to the fact that this structure facilitates a relatively significant expansion ratio, when comparing the initial unexpanded volume and packet size with the expansion obtained during use.
  • the unexpanded volume preferably but not necessarily, must be relatively small in order to optimize package manufacturing costs and logistics.
  • the folds/pleats initially increase the desired flow, typically a slightly turbulent flow, within the bag and subsequently facilitate the sedimentation of coffee powder over a relatively large area of the available infusible walls.
  • Figs. 2a and 2b illustrate a coffee infusion bag 20 according to an embodiment of the invention comprising a circular-like foundation.
  • the coffee bag 20 is fitted with a handle 22 in the form of a string fitted in the top of the coffee bag 20.
  • the handle 22 may comprise any suitable material, e.g. a plastic string, flexible rubber, polyester string, etc.
  • the illustrated coffee infusion bag 20 comprises an inner volume indicated by arrow 21.
  • the illustrated coffee bag contains a quantity of powdered coffee beans (not shown).
  • the coffee infusion bag is unexpanded and the bag may be dipped into e.g. a liquid containing cup, typically hot water, and thereby obtaining a coffee brew.
  • the illustrated coffee infusion bag has a circular-like foundation, from which the internal volume may be increased "vertically".
  • any suitable shape of the foundation may be applied according to the invention.
  • the illustrated coffee bag In its unexpanded position, the illustrated coffee bag may have a height of approximately between 3mm to 20mm, typically not more than 8mm.
  • the coffee infusion bag is expanded and the internal volume 21 is increased.
  • the expansion may be performed prior to any dipping into the liquid or, preferably, expanded subsequently to the dipping.
  • a coffee infusion bag 30 as described in figs. 2a and 2b is positioned in a container, hereafter referred to as a cup 36.
  • the coffee powder 35 containing bag is initially unexpanded and liquid, hereafter referred to as water, may be poured into the cup 36.
  • the coffee infusion bag 30 has been expanded, e.g. by pulling in a handle 32, mounted in the top of the coffee infusion bag.
  • the illustrated expanded coffee infusion bag has a relatively large size, when expanded. In other words, most of the hot water contained in the cup 36 is also contained in the coffee infusion bag 30.
  • Fig. 4a and 4b illustrate a coffee infusion bag 40 according to a further embodiment of the invention comprising a circular-like foundation.
  • the illustrated coffee bag basically comprises a variation of the coffee bag illustrated in figs. 2a and 2b.
  • the coffee bag 40 is fitted with a handle 42 in the form of a string fitted in the top of the coffee bag 40.
  • the handle 42 may comprise any suitable material, e.g. a plastic string, flexible rubber, polyester string, etc.
  • the illustrated coffee infusion bag 40 comprises an inner volume (not shown).
  • the illustrated coffee bag contains a quantity of powdered coffee beans (not shown).
  • the coffee infusion bag is unexpanded and the bag may be dipped into e.g. a liquid containing cup, typically hot water, and thereby obtaining a coffee brew.
  • the illustrated coffee infusion bag has a circular-like foundation, from which the internal volume may be increased "vertically".
  • any suitable shape of the foundation may be applied according to the invention.
  • the illustrated coffee bag In its unexpanded position, the illustrated coffee bag may have a height of approximately between 3mm to 20mm, typically not more than 8mm.
  • the coffee infusion bag is expanded and the internal volume is increased.
  • the expansion may be performed prior to any dipping into the liquid or it may be expanded subsequently to the dipping.
  • the illustrated bag is fitted with a funnel-shaped liquid inlet 47.
  • the liquid inlet is adapted for guiding water, when poured from the top of the bag 40, into the chamber of the coffee bag 40 and thereby creating a natural sought of flow through the bag. This feature increases the initial distribution of coffee powder within the coffee bag.
  • liquid inlet generally, according to an embodiment of the invention, might be formed by more or less infusible material. Generally, the liquid inlet should feature an infusibility that is greater than the other chamber forming filter material.
  • the handle 42 is fitted to the coffee bag at the circumference of the upper part of the coffee filter.
  • Fig. 5 illustrates a cross-section of the coffee infusion bag illustrated in fig. 4. It should be noted that the upper part of the coffee infusion bag 40 features a mechanically defined liquid inlet of the bag.
  • fluid might of course be infused into the bag 40 via the other walls of the chamber defining walls.
  • the liquid inlet serves the purpose of guiding liquid, in the following referred to as water, into the infusion bag and thereafter, to a certain degree, out of the bag again via the infusible material defining the chamber or chambers of the bag.
  • liquid inlet serves the purpose of guiding liquid, in the following referred to as water, into the infusion bag and thereafter, to a certain degree, out of the bag again via the infusible material defining the chamber or chambers of the bag.
  • this inlet may advantageously be applied for and facilitate a certain degree of flow within the chamber or chambers of the coffee bag, thereby causing some flow and distribution of coffee material.
  • Fig. 6 illustrates a further ball-shaped embodiment of the invention comprising a coffee infusion bag 60 having a top mounted handle 62.
  • Figs. 7a and 7b illustrate further embodiments of the invention of a coffee infusion bag 70 comprising a handle 72.
  • Figs. 8a and 8b illustrate further embodiments of the invention of a coffee infusion bag 80 comprising a handle 82.
  • Fig. 9 illustrates the cross-section of a further advantageous embodiment of the invention.
  • the illustrated coffee infusion bag 90 comprises a liquid inlet 97.
  • the coffee infusion bag comprises a number (here: four) of sub chambers 98, 99, defined by inner infusible walls 96.
  • An advantage of this embodiment is that water may pass into all the chambers 98, 99 of the coffee infusion bag 90, via the liquid inlet of the other infusible chamber-defining walls.
  • liquid is generally referred to as water, although the invention may be applied in connection with other liquids than water. It should be noted that the invention is in particular advantageous for use with water or water mixed slightly with other suitable ingredients.
  • the expanded coffee bag volume formed by one or several chambers is more than 25 cubic centimeters (cc), more preferably at least 50 cubic centimeters, even more preferably at least 100 cubic centimeters, irrespective of the applied shape of the expanded coffee containing chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
EP03015287A 2003-07-07 2003-07-07 Sachet d'infusion de café Withdrawn EP1495992A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03015287A EP1495992A1 (fr) 2003-07-07 2003-07-07 Sachet d'infusion de café

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03015287A EP1495992A1 (fr) 2003-07-07 2003-07-07 Sachet d'infusion de café

Publications (1)

Publication Number Publication Date
EP1495992A1 true EP1495992A1 (fr) 2005-01-12

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Family Applications (1)

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EP03015287A Withdrawn EP1495992A1 (fr) 2003-07-07 2003-07-07 Sachet d'infusion de café

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2679519A1 (fr) * 2012-06-25 2014-01-01 Yi-Pin Tseng Structure de recouvrement pliable pour matériaux de brassage
CN103538806A (zh) * 2012-07-12 2014-01-29 曾叶雪英 接合式的冲泡物折叠包覆结构及其制造方法
WO2014090141A1 (fr) * 2012-12-10 2014-06-19 Tseng Yipin Structure de revêtement d'article d'infusion
JP2015008762A (ja) * 2013-06-26 2015-01-19 ▲曽▼沂濱 接合式の流し浸し物の折畳みエンベロープ構造
CN105102351A (zh) * 2013-12-10 2015-11-25 曾沂滨 冲泡物包覆结构
JP2019504803A (ja) * 2016-02-11 2019-02-21 ユニリーバー・ナームローゼ・ベンノートシヤープ 浸出パケット
DE102021129429A1 (de) 2021-11-11 2023-05-11 Lothar Klick Filterbeutel zur Aufnahme eines Granulats, System zur Zubereitung eines Getränks sowie Verfahren zum Betreiben eines Systems

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441371A1 (fr) * 1978-11-16 1980-06-13 Vangedal Nielsen Erling Sachet filtre jetable et procede pour obtenir des boissons par extraction
US4746519A (en) * 1986-12-22 1988-05-24 Wright Darlene J Coffee bags
US4826695A (en) * 1986-03-26 1989-05-02 Joseph Tanner Beverage infusion device and method of use
EP0384106A1 (fr) * 1989-02-22 1990-08-29 Societe Des Produits Nestle S.A. Dispositif et appareil pour l'infusion de boissons
DE29705756U1 (de) * 1997-01-17 1997-06-19 Domingues Joao Rigueira, Aquilino, Oberkorn Kaffeebeutel
US6274180B1 (en) * 1999-05-17 2001-08-14 Jsd Partners Expandable beverage infusion device
GB2369095A (en) * 2000-11-14 2002-05-22 Tetley Gb Ltd An infusion package

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441371A1 (fr) * 1978-11-16 1980-06-13 Vangedal Nielsen Erling Sachet filtre jetable et procede pour obtenir des boissons par extraction
US4826695A (en) * 1986-03-26 1989-05-02 Joseph Tanner Beverage infusion device and method of use
US4746519A (en) * 1986-12-22 1988-05-24 Wright Darlene J Coffee bags
EP0384106A1 (fr) * 1989-02-22 1990-08-29 Societe Des Produits Nestle S.A. Dispositif et appareil pour l'infusion de boissons
DE29705756U1 (de) * 1997-01-17 1997-06-19 Domingues Joao Rigueira, Aquilino, Oberkorn Kaffeebeutel
US6274180B1 (en) * 1999-05-17 2001-08-14 Jsd Partners Expandable beverage infusion device
GB2369095A (en) * 2000-11-14 2002-05-22 Tetley Gb Ltd An infusion package

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2679519A1 (fr) * 2012-06-25 2014-01-01 Yi-Pin Tseng Structure de recouvrement pliable pour matériaux de brassage
CN103538806A (zh) * 2012-07-12 2014-01-29 曾叶雪英 接合式的冲泡物折叠包覆结构及其制造方法
CN103538806B (zh) * 2012-07-12 2016-08-03 曾沂滨 接合式的冲泡物折叠包覆结构及其制造方法
WO2014090141A1 (fr) * 2012-12-10 2014-06-19 Tseng Yipin Structure de revêtement d'article d'infusion
US20160052707A1 (en) * 2012-12-10 2016-02-25 Yipin TSENG Brewing article cladding structure
JP2015008762A (ja) * 2013-06-26 2015-01-19 ▲曽▼沂濱 接合式の流し浸し物の折畳みエンベロープ構造
CN105102351A (zh) * 2013-12-10 2015-11-25 曾沂滨 冲泡物包覆结构
JP2019504803A (ja) * 2016-02-11 2019-02-21 ユニリーバー・ナームローゼ・ベンノートシヤープ 浸出パケット
DE102021129429A1 (de) 2021-11-11 2023-05-11 Lothar Klick Filterbeutel zur Aufnahme eines Granulats, System zur Zubereitung eines Getränks sowie Verfahren zum Betreiben eines Systems

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