US3542561A - Multichamber infusion bag - Google Patents

Multichamber infusion bag Download PDF

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Publication number
US3542561A
US3542561A US575884A US3542561DA US3542561A US 3542561 A US3542561 A US 3542561A US 575884 A US575884 A US 575884A US 3542561D A US3542561D A US 3542561DA US 3542561 A US3542561 A US 3542561A
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US
United States
Prior art keywords
chambers
bag
substance
infusion
infusion bag
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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US575884A
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English (en)
Inventor
Adolf Rambold
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Individual
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Individual
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Publication of US3542561A publication Critical patent/US3542561A/en
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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
    • 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

Definitions

  • the present invention relates to an infusion bag containing an infusible substance such as tea, coffee or the like for preparing a beverage, and it further relates to a method of producing such infusion bags.
  • infusion bags known of a type consisting of a tubular element the ends of which are connected to each other so as to form a closure, while the parts between these ends are bent at an angle to each other so as to form two chambers which are preferably of an equal size and contain the infusible substance, and a central part between these chambers which does not contain any substance and may be folded once more transversely.
  • the tube for forming these known infusion bags is made by folding together the longitudinal edges of the strip of fibrous material.
  • the intermediate part of each bag is made of such a length that the empty fold which is formed of the intermediate part and disposed between the two chambers will when stretched out be, on the one hand, sufiiciently long so as to permit the chambers to spread apart due to the swelling effect of the infusing liquid and be, on the other hand, sufficiently short so as to insure that the opposite parts of the longitudinal folds of the swollen chambers will be in contact with each other for a certain distance and will thus prevent the longitudinal folds from coming apart.
  • the present invention is based upon the new finding that it is practically of no importance that the intermediate or central part of the infusion bag is sufficiently short so as to insure that the opposite parts of the longitudinal folds of the swollen chambers will be in contact with each other for a certain distance because it is easily possible to make the usual longitudinal folds in a manner so as to insure that they will not come apart even though the intermediate part is made of a relatively great length.
  • the object of the present invention to design an infusion bag regardless of the length of the intermediate part in such a manner that, while each bag contains a certain small quantity of the infusible substance, this quantity be distributed within the bag in a manner so as to take up the largest possible surface area.
  • the bags according to the invention should, however, be designed so as to permit them to be easily packed by being folded together to a relatively flat condition.
  • the invention provides that the bag does not comprise a central or intermediate part and two outer chambers adjacent to said intermediate part but comprises at least three adjacent chambers, the infusible substance being distributed upon all chambers and preferably so as to form a continuous and substantially uniform layer within the said chambers.
  • the middle chamber of the bag is preferably made of such a length that, after the substance is swollen in the infusing liquid, the two lateral chambers except the parts directly adjacent to the closure of the bag will not be in direct contact with each other.
  • An infusion bag according to the invention may be produced by proceeding according to the conventional method by feeding a continuous strip of a fibrous filtering material at a uniform speed, bending up the longitudinal edges of this strip so as to form a trough, depositing equal quantities of the infusible substance at spaced intervals on this trough, connecting the longitudinal edges of the strip to each other so as to form a flat tube, cutting off this tube transversely into equal sections at points which are not covered by the substance, dividing each tubular section so as to form at least three chambers by bending the tubular section transversely at least at two points, and connecting the two ends of the tubular section to each other and thereby closing the ends.
  • this'method is to be carried out by depositing the substance upon the strip of material in such a manner that a certain quantity of this substance will be distributed in the form of an uninterrupted layer on each section of the strip which subsequently forms said chambers.
  • An infusion bag which is designed in accordance with the present invention has the advantage over similar bags as previously made that not only two chambers but also at least a further chamber will be utilized for holding the infusible substance. Consequently, the substance will be distributed over a larger area and may therefore form a thinner layer, and consequently it will be more quickly and effectively extracted by the infusing liquid.
  • a bag according to the present invention may therefore either'contain a larger quantity of the infusible substance than a similar bag as previously made or if it contains the same quantity as one of the previous bags, the new bag may be made of a smaller size.
  • the saving in bag material may amount up to 40%. It has further been found that the substance will be more quickly and effectively extracted if it is provided in the form of a continuous layer.
  • This also has the advantage that each tube forming a bag will no longer be bent transversely at such sharp angles, for example, between the chambers and an intermediate part, as it was previously bent at an unfilled part of the bag, and that the chambers will therefore spread apart more easily in the infusing liquid.
  • the infusion bags according to the invention are not limited to any particular external shape and size but, as will hereafter be shown, they may be made of various shapes and their individual parts may be made of different dimensions.
  • FIGS. 1, 2, and 3 respectively, show a perspective view and a side view of a folded infusion bag according to the invention, and a side view of this bag in its spread condition;
  • FIGS. 4 and show side views of an infusion bag of another shape in its folded and spread conditions
  • FIGS. 6 and 7 show side views of an infusion bag of a further shape in its folded and spread conditions; while FIGS. 8 and 9 show side views of an infusion of still another different shape in its folded and spread conditions.
  • the infusion bag 1 ac cording to the invention consists of a tube, the ends of which are connected to each other so as to form a folded flap 5 which is held together by a staple 6 which also serves for securing to the bag one end of a string 7, the other end of which is connected to a handle 8 in the form of a label or the like.
  • the tube is divided into three chambers 2, 3 and 4, all of which are filled with an infusible substance, such as coffee, tea, or the like.
  • the middle chamber 2 is bent over transversely at its center, and the two halves 2 and 2" of this chamher 2 are folded inwardly so as to lie between the two chambers 3 and 4.
  • the chamber 2 should have such a minimum length that, when the substance 9 expands in the infusing liquid, the two chambers 3 and 4 will spread apart to a position as shown in FIG. 3 and will thereafter no longer be in contact with each other, except at their point of connection at the flap 5.
  • the chamber 2 should, on the other hand, have such a maximum length that when it is centrally bent upwaIdly, it will still fit between the chambers 3 and 4.
  • FIGS. 4 and 5 illustrate an infusion bag 201 which is designed so that each of the chambers 202, 203 and 204 are of substantially the same length and chamber 203 is folded inwardly so as to lie between the other chambers 202 and 204.
  • each bag may, for example, be bent or folded at least twice transversely in addition to the folds which divide the bag into the three chambers.
  • the bag 301 may be folded so as to divide each chamber 303 and 304 into three substantially equal sections 303, 303", 303" and 304, 304", 304", respectively.
  • the central sections 303" and 304" and the sections 303" and 304" adjacent to the middle chamber 302 may be folded inwardly toward each other so as to lie between the middle chamber 302 and the sections 303' and 304' adjacent to the closure part 305.
  • FIGS. 8 and 9 illustrate a fourth embodiment of the invention in which the sections 403' and 404' of chambers 403 and 404 of the infusion bag 401 which are disposed adjacent to the middle chamber 402 are folded over outwardly and each of these sections 403 and 404 together with the adjacent section 402 or 402" of the middle chamber 402 is applied against the associated chamber 403 or 404, respectively.
  • the embodiments of the invention as previously described may be further modified, especially insofar as the dimensions of the individual bag parts relative to each other are concerned. These relative dimensions should, however, be determined by the fact that, when the middle chamber of the bag is stretched out, the angles between the middle chamber and the adjacent chambers should not be too acute so that the infusible substance will not be squeezed off at the points of these angles, but will remain as a continuous layer of a substantially uniform thickness. All of the transverse folds of the infusion bags according to the invention are to be bent in such a manner that, when the bags are immersed in a liquid, they will expand of their own accord from their folded position and will always spread apart to a wreathlike shape which will be fully exposed at the inner and outer sides to the infusing liquid.
  • An infusion bag for preparing a beverage from an infusible substance comprising a tube of fibrous filtering material, closure means connecting the opposite ends of said tube to each other and closing said ends, the parts of said tube intermediate said closed ends forming at least three longitudinally adjacent chambers arranged in a polygonal form and each of said chambers containing said infusible substance, said substance forming a continuous, substantially uniform layer within said chambers, at least one of said chambers being provided with at least one transverse bend, whereby said infusion bag is adapted to form a substantially flat body and to assume, after insertion in an infusion liquid and following swelling of said substance in all chambers, a generally polygonal ring-like form with the lateral chambers spread apart.
  • each of said chambers has a substantially equal length, one of the outer chambers is folded, so as to lie between the other outer chamber and the middle chamber.
  • each of the outer chambers is bent to a zig zag shape and thus divided into three sections, the central of these sec- 5 tions and the section adjacent to the middle chamber being enclosed between said middle chamber and the section adjacent to said closure means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)
  • Making Paper Articles (AREA)
US575884A 1965-08-31 1966-08-29 Multichamber infusion bag Expired - Lifetime US3542561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER41438A DE1283456B (de) 1965-08-31 1965-08-31 Aufgussbeutel, insbesondere fuer Tee

Publications (1)

Publication Number Publication Date
US3542561A true US3542561A (en) 1970-11-24

Family

ID=7406361

Family Applications (1)

Application Number Title Priority Date Filing Date
US575884A Expired - Lifetime US3542561A (en) 1965-08-31 1966-08-29 Multichamber infusion bag

Country Status (6)

Country Link
US (1) US3542561A (cs)
BE (1) BE686232A (cs)
CH (1) CH445752A (cs)
DE (1) DE1283456B (cs)
GB (1) GB1157513A (cs)
NL (1) NL6612230A (cs)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290521A (en) * 1979-09-10 1981-09-22 Thomas J. Lipton, Inc. Infusion package and method of making same
US4417433A (en) * 1979-09-10 1983-11-29 Thomas J. Lipton, Inc. Method of making infusion package
US4551336A (en) * 1983-12-22 1985-11-05 Chen Ying Cheng Infusion bag
US4844914A (en) * 1985-12-14 1989-07-04 Jacobs Suchard Gmbh Infusion bag for making in particular coffee beverages
US5047252A (en) * 1989-02-22 1991-09-10 Nestec S.A. Beverage infusion device and method
US5135762A (en) * 1990-03-21 1992-08-04 Thomas J. Lipton Co., Division Of Conopco, Inc. Compartmental infusion packet
USD338770S (en) 1991-03-21 1993-08-31 Thomas J. Lipton Co., Division Of Conopco, Inc. Infusion packet
USD338768S (en) 1991-03-21 1993-08-31 Thomas J. Lipton Co., Division Of Conopco, Inc. Infusion packet
USD338769S (en) 1991-03-21 1993-08-31 Thomas J. Lipton Co., Division Of Conopco, Inc. Infusion packet
US5788061A (en) * 1996-12-27 1998-08-04 Hammond; Michael W. Potpourri container
USD407809S (en) 1997-12-17 1999-04-06 Hammond Michael W Combined picture frame and potpourri holder
US20030059500A1 (en) * 2000-01-14 2003-03-27 Bailey Thomas William Infusion packages and corresponding manufacturing methods
US20030170345A1 (en) * 2002-03-11 2003-09-11 Te Sheng Wang Structure of a tea bag
US6692781B2 (en) * 1999-05-17 2004-02-17 David Ryan Expandable beverage infusion device
US6733804B1 (en) * 1998-09-17 2004-05-11 Teepack Spezialmaschinen Gmbh & Co. Kg Multi-chambered infusion bag, especially for tea
US20040131729A1 (en) * 2003-01-02 2004-07-08 Olivia Helprin Beverage infusion device
US20050092185A1 (en) * 2003-10-31 2005-05-05 Magna Terra B.V. Device for providing a drink from extracts, in particular tea extracts, and cover and container for use in such a device
GB2408252A (en) * 2003-11-24 2005-05-25 Tetley Gb Ltd Three-dimensional infusion packages
US20050208181A1 (en) * 2004-03-22 2005-09-22 Greco Paul V Weighted infusion beverage package
RU2281236C1 (ru) * 2005-01-11 2006-08-10 Юрий Анатольевич Сухонос Упаковка с порошкообразным материалом
RU2288154C2 (ru) * 2004-12-24 2006-11-27 Юрий Анатольевич Сухонос Упаковка сыпучего вещества
US20140048979A1 (en) * 2011-05-03 2014-02-20 Adrian Michael Woodward Process for producing formed thermoplastic
USD702017S1 (en) * 2011-08-18 2014-04-08 Amy Gallagher Tea bag

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3071019D1 (en) * 1980-11-14 1985-09-26 Unilever Nv Infusion package and method of forming it
IT1187308B (it) * 1985-02-08 1987-12-23 Cestind Centro Studi Ind Sacchetto-filtro biuso per prodotti da infusione e metodo per produrlo
ITBO940272A1 (it) * 1994-06-09 1995-12-11 Calogero Daunisi Sacchetto filtro per prodotti da infusione
DE69728739T2 (de) * 1996-12-06 2005-03-31 Fuso Sangyo K.K. Flexibler und permeabler Behälter mit einem Anhänger
DE59809869D1 (de) * 1998-04-11 2003-11-13 Teepack Spezialmaschinen Aufgussbeutel, insbesondere zur Bereitung von Tee
CN107498927B (zh) * 2017-09-18 2023-11-21 东莞市胜越机械设备有限公司 一种文件袋自动组装设备
CN108820589A (zh) * 2018-08-15 2018-11-16 合肥华绿园健康生物科技有限公司 一种茶叶包

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2143302A (en) * 1938-04-13 1939-01-10 Mutual Tea Packing Co Inc Bag containing beverage material
US2593608A (en) * 1948-07-08 1952-04-22 Teepack Spezialmaschinen G M B Folded bag
US3053665A (en) * 1957-08-23 1962-09-11 Nat Tea Packing Company Inc Manufacture of infusion bags

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE914425C (de) * 1944-04-27 1954-07-01 Seelig & Hille R Faltbeutel, insbesondere Aufgussbeutel
US2918378A (en) * 1956-11-05 1959-12-22 Richard V Joiner Food package and method of packaging

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2143302A (en) * 1938-04-13 1939-01-10 Mutual Tea Packing Co Inc Bag containing beverage material
US2593608A (en) * 1948-07-08 1952-04-22 Teepack Spezialmaschinen G M B Folded bag
US3053665A (en) * 1957-08-23 1962-09-11 Nat Tea Packing Company Inc Manufacture of infusion bags

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290521A (en) * 1979-09-10 1981-09-22 Thomas J. Lipton, Inc. Infusion package and method of making same
US4417433A (en) * 1979-09-10 1983-11-29 Thomas J. Lipton, Inc. Method of making infusion package
US4551336A (en) * 1983-12-22 1985-11-05 Chen Ying Cheng Infusion bag
US4844914A (en) * 1985-12-14 1989-07-04 Jacobs Suchard Gmbh Infusion bag for making in particular coffee beverages
US5047252A (en) * 1989-02-22 1991-09-10 Nestec S.A. Beverage infusion device and method
US5312318A (en) * 1990-03-21 1994-05-17 Thomas J. Lipton Co., Division Of Conopco Inc. Packaging method and means
US5135762A (en) * 1990-03-21 1992-08-04 Thomas J. Lipton Co., Division Of Conopco, Inc. Compartmental infusion packet
USD338770S (en) 1991-03-21 1993-08-31 Thomas J. Lipton Co., Division Of Conopco, Inc. Infusion packet
USD338768S (en) 1991-03-21 1993-08-31 Thomas J. Lipton Co., Division Of Conopco, Inc. Infusion packet
USD338769S (en) 1991-03-21 1993-08-31 Thomas J. Lipton Co., Division Of Conopco, Inc. Infusion packet
US5788061A (en) * 1996-12-27 1998-08-04 Hammond; Michael W. Potpourri container
USD407809S (en) 1997-12-17 1999-04-06 Hammond Michael W Combined picture frame and potpourri holder
US6733804B1 (en) * 1998-09-17 2004-05-11 Teepack Spezialmaschinen Gmbh & Co. Kg Multi-chambered infusion bag, especially for tea
US6692781B2 (en) * 1999-05-17 2004-02-17 David Ryan Expandable beverage infusion device
US20030059500A1 (en) * 2000-01-14 2003-03-27 Bailey Thomas William Infusion packages and corresponding manufacturing methods
US7081078B2 (en) * 2000-01-14 2006-07-25 Molins Plc Infusion packages and corresponding manufacturing methods
US20030170345A1 (en) * 2002-03-11 2003-09-11 Te Sheng Wang Structure of a tea bag
US20040131729A1 (en) * 2003-01-02 2004-07-08 Olivia Helprin Beverage infusion device
US20050092185A1 (en) * 2003-10-31 2005-05-05 Magna Terra B.V. Device for providing a drink from extracts, in particular tea extracts, and cover and container for use in such a device
GB2408252B (en) * 2003-11-24 2006-01-04 Tetley Gb Ltd Infusion packages
GB2408252A (en) * 2003-11-24 2005-05-25 Tetley Gb Ltd Three-dimensional infusion packages
US20050208181A1 (en) * 2004-03-22 2005-09-22 Greco Paul V Weighted infusion beverage package
US7744939B2 (en) * 2004-03-22 2010-06-29 Greco Paul V Weighted infusion beverage package
RU2288154C2 (ru) * 2004-12-24 2006-11-27 Юрий Анатольевич Сухонос Упаковка сыпучего вещества
RU2281236C1 (ru) * 2005-01-11 2006-08-10 Юрий Анатольевич Сухонос Упаковка с порошкообразным материалом
US20140048979A1 (en) * 2011-05-03 2014-02-20 Adrian Michael Woodward Process for producing formed thermoplastic
US10011070B2 (en) * 2011-05-03 2018-07-03 Conopco, Inc. Process for producing formed thermoplastic
USD702017S1 (en) * 2011-08-18 2014-04-08 Amy Gallagher Tea bag

Also Published As

Publication number Publication date
GB1157513A (en) 1969-07-09
NL6612230A (cs) 1967-03-01
DE1283456B (de) 1968-11-21
BE686232A (cs) 1967-02-01
CH445752A (de) 1967-10-31

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