CA2146147A1 - Infusion packets - Google Patents
Infusion packetsInfo
- Publication number
- CA2146147A1 CA2146147A1 CA002146147A CA2146147A CA2146147A1 CA 2146147 A1 CA2146147 A1 CA 2146147A1 CA 002146147 A CA002146147 A CA 002146147A CA 2146147 A CA2146147 A CA 2146147A CA 2146147 A1 CA2146147 A1 CA 2146147A1
- Authority
- CA
- Canada
- Prior art keywords
- packet
- thread
- compartments
- end portions
- 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.)
- Abandoned
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
- B65D85/808—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
Abstract
A dual compartment infusion packet has the compartments (2a, 2b) directly secured to each other at one end of the packet and separated by a V-fold (4) of the packet material at the other end. A suspension thread (10) has an intermediate por-tion (10b) lying within the fold (4) and end portions (10a, 10c) extending therefrom through attachment means (8) at the other end of the packet. The end portions are displaceable in the attachment means so that when tensioned they contract the packet to squeeze out liquid held in the packet after an infusion process.
Description
~94/07763 214 61~ 7 PCT/GB93/02049 INFUSION PACKETS
This invention relates to packets in which a quantity of infusible or soluble material is held in a porous envelope which is immersed in liquid to prepare an . infusion.
Such packets have the disadvantage that a significant proportion of the infused liquid remains in the packet unless and until the user squeezes it out. This can be an inconvenient and unpleasant operation, and infusion packets have been proposed which are provided with threads that can be pulled to contract the packet and express the surplus liquid, so that the user does not have to touch the packet itself.
In US 3396032, 3237550, 2986269 and 2878927, the thread is looped centrally around the packet (as a double loop in the case of US 3396032). The ends of the loop are secured to one end of the packet, typically by stapling in a manner which allows them to be drawn through the staple to tighten the loop and so contract a bag to squeeze out the surplus liquid. At the opposite end of the bag the loop must be securely located centrally of the packet at all times and for this purpose some of the known packets require a further staple (US 3396032 and 2986269), which is a aisadvantage both in the manufacture of the packet and in its use when the free movement of thread may be impaired.
Alternatively that opposite end of the packet may be W094/07763 . PCT/GB93/0204 2 1~61 47 2 notched (US 3237550 and 2878927), but the difficulty arises that the notching weakens the end seal of the packet, which is particularly important because the tightening of the loop of thread will apply additional stress at this point and bring the risk that the bag will burst and its contents be spilt. Increasing the width of the seal to avoid that danger leads to a wasteful use of material and, moreover, the consequent increase of size of the packet will usually be a disadvantage from the consumer's point of view.
Other proposals (US 2881910 and 2466281) pass the thread through apertures in the walls of the packet and so avoid the need for a notch, but they have the disadvantage that the infusible material may leak through the apertures, whether before or during use.
According to the present invention, there is provided an infusion packet comprising a pair of superimposed compartments joined at opposite ends, the join at least at one of said ends comprising a folded region lying between the compartments and projecting towards the other said end, a thread having end portions held by attachment means at or adjacent said other end, and an intermediate portion located in said folded region of the packet between the compartments, the thread being displaceable in said attachment means by applying tension to the end portions to contract the packet for expressing liquid from the packet after infusion.
In this way, it is possible to retain the thread in place on the packet without incurring an increased risk O 94/07763 2 1 ~ 61 4 7 PC~r/G B93/02049 .
of spillage or leakage. The double compartment form of the packet itself provides a relatively compact container for the infusible material and the invention is capable of being employed in such a way that the ability to contract the packet is obtained without requiring any increase of size, nor any additional securing means.
The end portions of the thread may be held between the compartments at said other end of the packet.
In one such arrangement the compartments are heat sealed to each other at said other end with the formation of at least one space in the heat sealing providing passage means in which the thread end portions are displaceably held.
In an alternative arrangement, the respective end portions of the thread run exteriorly from said folded region to said other end of the compartments on opposite sides of the packet. It may then be convenient to hold said end portions of the thread by staple means at said other end of the packet.
Preferably, at least one of the end portions of the thread is attached to a tag. In one form of the invention, both end portions are attached to respectively separable parts of the tag so that the loop can be tightened by grasping the separated tab parts.
By way of example, the invention will now be described with reference to the accompanying drawings, in which:
Figs. 1 and 2 show a tea bag according to the invention in front and side views respectively, and W094/07763 ~14 614 7 PCT/GB93/0204~
Figs. 3 to 5 illustrate some modifications of the tea bag in ~igs. 1 and 2.
The illustrated tea bag 2 comprises a tubular web of paper or the like permeable sheet material which has been formed into two superimposed compartments 2a,2b each containing a dose of tea leaves. It is of course possible to utilise other infusible materials, such as ground coffee, in the same way. An intermediate portion of the tubular web which extends between the lower ends of the compartments 2a,2b is formed in a V-fold 4 projecting towards the opposite end of the tea bag. At the upper end of the compartments, lateral and central flaps 6a,6b of the web material are folded over and secured by a staple 8, preferably of aluminium, to seal in the contents of the compartments. In this example, the compartment 2b is shorter than the compartment 2a before the flaps are folded over, the flap 6b being formed by the top of the compartment 2a only.
A thread 10 captured by the staple 8 serves to suspend the packet in an infusing liquid. The thread passes around the tea bag, from the staple 8 in a first run lOa diagonally down one outer side of the bag and then at lOb along the V-fold to continue in a run lOc diagonally along the opposite outer side of the bag to the staple.
The end portions of the thread are thus held captive under the staple 8 on opposite sides of the bag. The end portions are held sufficiently securely to avoid the risk that the intermediate portion lOb of the thread will slip ~94/07763 21~ 6 PCT/GB93/02049 out from the V-fold 4, but when tensioned the thread will slide easily through the staple 8 to tighten the loop passing through the V-fold. As a result, the tea bag is contracted and surplus liquid is expressed from its contents after the tea leaves have been infused.
The free ends lOd of the thread are shown stapled in a conventional manner to a tag 12 and they are gripped between the bag and the tag to squeeze the liquid from the bag. In a modification shown in Figs. 4 and 5, a tag 12' is separable into two parts, by a weakening such as a line of perforations 22, and the free ends of thread are secured each to a respective one of said tag parts by glue or heat seals. When separated, the two parts of the tag provide convenient finger grips for pulling the thread and contracting the tea bag.
Before use, the free lengths of thread can be wound loosely round the bag or gathered into a coil or roll, preferably under the tag, and the tag can be temporarily tacked to the web to hold the thread in place.
The closure flaps 6a,6b can be folded over opposite sides of the tag bag instead of the same side as shown in Figs. 1 and 2. In particular, Fig. 3 illustrates how the two lateral flaps 6a can be folded to one side, over one compartment, and the central flap 6b folded to the opposite side, over the other compartment.
In another modification illustrated in Fig. 4, the end portions of the thread run, from the V-fold, between the opposed faces of the two compartments to the upper end of the tea bag. In this case, if the two compartments are secured together at that end of the bag by heat sealing the thread end portions can conven_ently be located within the extent of the seal. For easy movement of the thread, such a heat seal could be interrupted across the width of the bag to form one or more channels through which the thread end portions extend, from the space between the compartments to the exterior. In the example of Fig. 4, the end thread runs lOa,lOc converge to pass through a common central passage 24 in the heat sealed top margin of the bag, underneath the flap 6b. The thread runs lOa,lOc may alternatively cross over each other in their course between the compartments, as is shown in Fig. 5, to be held by the flaps themselves and emerge from spaced regions at the upper end of the tea bags.
This invention relates to packets in which a quantity of infusible or soluble material is held in a porous envelope which is immersed in liquid to prepare an . infusion.
Such packets have the disadvantage that a significant proportion of the infused liquid remains in the packet unless and until the user squeezes it out. This can be an inconvenient and unpleasant operation, and infusion packets have been proposed which are provided with threads that can be pulled to contract the packet and express the surplus liquid, so that the user does not have to touch the packet itself.
In US 3396032, 3237550, 2986269 and 2878927, the thread is looped centrally around the packet (as a double loop in the case of US 3396032). The ends of the loop are secured to one end of the packet, typically by stapling in a manner which allows them to be drawn through the staple to tighten the loop and so contract a bag to squeeze out the surplus liquid. At the opposite end of the bag the loop must be securely located centrally of the packet at all times and for this purpose some of the known packets require a further staple (US 3396032 and 2986269), which is a aisadvantage both in the manufacture of the packet and in its use when the free movement of thread may be impaired.
Alternatively that opposite end of the packet may be W094/07763 . PCT/GB93/0204 2 1~61 47 2 notched (US 3237550 and 2878927), but the difficulty arises that the notching weakens the end seal of the packet, which is particularly important because the tightening of the loop of thread will apply additional stress at this point and bring the risk that the bag will burst and its contents be spilt. Increasing the width of the seal to avoid that danger leads to a wasteful use of material and, moreover, the consequent increase of size of the packet will usually be a disadvantage from the consumer's point of view.
Other proposals (US 2881910 and 2466281) pass the thread through apertures in the walls of the packet and so avoid the need for a notch, but they have the disadvantage that the infusible material may leak through the apertures, whether before or during use.
According to the present invention, there is provided an infusion packet comprising a pair of superimposed compartments joined at opposite ends, the join at least at one of said ends comprising a folded region lying between the compartments and projecting towards the other said end, a thread having end portions held by attachment means at or adjacent said other end, and an intermediate portion located in said folded region of the packet between the compartments, the thread being displaceable in said attachment means by applying tension to the end portions to contract the packet for expressing liquid from the packet after infusion.
In this way, it is possible to retain the thread in place on the packet without incurring an increased risk O 94/07763 2 1 ~ 61 4 7 PC~r/G B93/02049 .
of spillage or leakage. The double compartment form of the packet itself provides a relatively compact container for the infusible material and the invention is capable of being employed in such a way that the ability to contract the packet is obtained without requiring any increase of size, nor any additional securing means.
The end portions of the thread may be held between the compartments at said other end of the packet.
In one such arrangement the compartments are heat sealed to each other at said other end with the formation of at least one space in the heat sealing providing passage means in which the thread end portions are displaceably held.
In an alternative arrangement, the respective end portions of the thread run exteriorly from said folded region to said other end of the compartments on opposite sides of the packet. It may then be convenient to hold said end portions of the thread by staple means at said other end of the packet.
Preferably, at least one of the end portions of the thread is attached to a tag. In one form of the invention, both end portions are attached to respectively separable parts of the tag so that the loop can be tightened by grasping the separated tab parts.
By way of example, the invention will now be described with reference to the accompanying drawings, in which:
Figs. 1 and 2 show a tea bag according to the invention in front and side views respectively, and W094/07763 ~14 614 7 PCT/GB93/0204~
Figs. 3 to 5 illustrate some modifications of the tea bag in ~igs. 1 and 2.
The illustrated tea bag 2 comprises a tubular web of paper or the like permeable sheet material which has been formed into two superimposed compartments 2a,2b each containing a dose of tea leaves. It is of course possible to utilise other infusible materials, such as ground coffee, in the same way. An intermediate portion of the tubular web which extends between the lower ends of the compartments 2a,2b is formed in a V-fold 4 projecting towards the opposite end of the tea bag. At the upper end of the compartments, lateral and central flaps 6a,6b of the web material are folded over and secured by a staple 8, preferably of aluminium, to seal in the contents of the compartments. In this example, the compartment 2b is shorter than the compartment 2a before the flaps are folded over, the flap 6b being formed by the top of the compartment 2a only.
A thread 10 captured by the staple 8 serves to suspend the packet in an infusing liquid. The thread passes around the tea bag, from the staple 8 in a first run lOa diagonally down one outer side of the bag and then at lOb along the V-fold to continue in a run lOc diagonally along the opposite outer side of the bag to the staple.
The end portions of the thread are thus held captive under the staple 8 on opposite sides of the bag. The end portions are held sufficiently securely to avoid the risk that the intermediate portion lOb of the thread will slip ~94/07763 21~ 6 PCT/GB93/02049 out from the V-fold 4, but when tensioned the thread will slide easily through the staple 8 to tighten the loop passing through the V-fold. As a result, the tea bag is contracted and surplus liquid is expressed from its contents after the tea leaves have been infused.
The free ends lOd of the thread are shown stapled in a conventional manner to a tag 12 and they are gripped between the bag and the tag to squeeze the liquid from the bag. In a modification shown in Figs. 4 and 5, a tag 12' is separable into two parts, by a weakening such as a line of perforations 22, and the free ends of thread are secured each to a respective one of said tag parts by glue or heat seals. When separated, the two parts of the tag provide convenient finger grips for pulling the thread and contracting the tea bag.
Before use, the free lengths of thread can be wound loosely round the bag or gathered into a coil or roll, preferably under the tag, and the tag can be temporarily tacked to the web to hold the thread in place.
The closure flaps 6a,6b can be folded over opposite sides of the tag bag instead of the same side as shown in Figs. 1 and 2. In particular, Fig. 3 illustrates how the two lateral flaps 6a can be folded to one side, over one compartment, and the central flap 6b folded to the opposite side, over the other compartment.
In another modification illustrated in Fig. 4, the end portions of the thread run, from the V-fold, between the opposed faces of the two compartments to the upper end of the tea bag. In this case, if the two compartments are secured together at that end of the bag by heat sealing the thread end portions can conven_ently be located within the extent of the seal. For easy movement of the thread, such a heat seal could be interrupted across the width of the bag to form one or more channels through which the thread end portions extend, from the space between the compartments to the exterior. In the example of Fig. 4, the end thread runs lOa,lOc converge to pass through a common central passage 24 in the heat sealed top margin of the bag, underneath the flap 6b. The thread runs lOa,lOc may alternatively cross over each other in their course between the compartments, as is shown in Fig. 5, to be held by the flaps themselves and emerge from spaced regions at the upper end of the tea bags.
Claims (7)
1. An infusion packet comprising a pair of superimposed compartments (2a,2b) joined at opposite ends of the packet, the join at one of said ends comprising a folded region (4) lying between the compartments and projecting towards the other said end, the packet further comprising a thread (10) held by attachment means (8) at or adjacent said other end, characterised in that the thread has an intermediate portion (10b) located in the folded region (4) of the packet between the compartments and end portions (10a,10c) held by the attachment means (8) that are adjacent the other end of the compartments, and that the thread is displaceable in said attachment means by applying tension to the end portions to contract the packet.
2. An infusion packet according to claim 1 wherein the end portions (10a,10c) of the thread are held at said opposite end of the packet in means (8) securing the compartments (2a,2b) together at that end.
3. An infusion packet according to claim 1 or claim 2 wherein the end portions (10a,10c) of the thread are held at said opposite end by staple means (8).
4. An infusion packet according to claim 1 or claim 2 wherein the end portions (10a,10c) of the thread are held between the joined compartments (2a,2b) at said opposite end in passage means provided between said compartments.
5. An infusion packet according to any one of the preceding claims wherein the end portions (10,10c) of the thread run between the compartments (2a,2b) to said other end of the packet.
6. An infusion packet according to any one of the preceding claims wherein said end portions (10a,10c) converge towards each other from said folded region (4).
7. An infusion packet according to any one of the preceding claims wherein the respective thread end portions (10a,10c) are secured to separable parts of a tag (12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP92309014 | 1992-10-02 | ||
| EP92309014.6 | 1992-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2146147A1 true CA2146147A1 (en) | 1994-04-14 |
Family
ID=8211504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002146147A Abandoned CA2146147A1 (en) | 1992-10-02 | 1993-10-01 | Infusion packets |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US5366741A (en) |
| EP (1) | EP0664761B1 (en) |
| JP (1) | JPH08504391A (en) |
| AT (1) | ATE140672T1 (en) |
| AU (1) | AU671300B2 (en) |
| CA (1) | CA2146147A1 (en) |
| DE (1) | DE69303824T2 (en) |
| DK (1) | DK0664761T3 (en) |
| ES (1) | ES2089849T3 (en) |
| GR (1) | GR3020770T3 (en) |
| NZ (1) | NZ256118A (en) |
| TR (1) | TR27177A (en) |
| TW (1) | TW264443B (en) |
| WO (1) | WO1994007763A1 (en) |
| ZA (1) | ZA937278B (en) |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9219657D0 (en) * | 1992-09-17 | 1992-10-28 | Unilever Plc | Tagged articles |
| IN183041B (en) * | 1993-10-12 | 1999-08-28 | Lever Hindustan Ltd | |
| ES2127942T3 (en) * | 1993-10-12 | 1999-05-01 | Unilever Nv | PACKAGES FOR INFUSIONS AND MANUFACTURE OF THEM. |
| CN1135742A (en) * | 1993-11-08 | 1996-11-13 | 尤尼利弗公司 | Infusion package |
| GB9406833D0 (en) * | 1994-04-07 | 1994-06-01 | Unilever Plc | Packets and their manufacture |
| IT1282483B1 (en) * | 1995-04-04 | 1998-03-23 | Tecnomeccanica Srl | MACHINE FOR PACKAGING FILTER BAGS CONTAINING AN INFUSION PRODUCT PROVIDED WITH A SOCKET LABEL CONNECTED TO THE BAG |
| IT1279697B1 (en) * | 1995-12-07 | 1997-12-16 | Tecnomeccanica Srl | MACHINE FOR PACKAGING ASSEMBLIES FOR INFUSION IN A LIQUID IN WHICH AN INFUSIBLE PRODUCT IS CONTAINED IN A FILTER BAG IN |
| DE29601442U1 (en) * | 1996-01-29 | 1996-05-30 | Ostfriesische Tee Ges Laurens | Teabag |
| US5979144A (en) * | 1996-07-11 | 1999-11-09 | Lipton | Packets and their manufacture |
| US5861185A (en) * | 1996-08-22 | 1999-01-19 | Mars, Incorporated | Ultrasonic forming of confectionery products |
| US5871783A (en) | 1996-08-22 | 1999-02-16 | Mars, Incorporated | Apparatus for ultrasonically forming confectionery products |
| IT1286767B1 (en) * | 1996-11-15 | 1998-07-17 | Luxteco International S A Soci | PACKAGING EQUIPMENT |
| US5871793A (en) | 1996-11-27 | 1999-02-16 | Mars Incorporated | Puffed cereal cakes |
| EP0850847A1 (en) * | 1996-12-23 | 1998-07-01 | Unilever Plc | Infusion package and method of forming it |
| EP0875467A1 (en) * | 1997-04-23 | 1998-11-04 | Unilever Plc | Improvements in or relating to infusion packages |
| WO1999003734A1 (en) * | 1997-07-18 | 1999-01-28 | Thaumaturge Pty. Limited | Squeezable beverage bags |
| ES2203084T3 (en) * | 1998-03-04 | 2004-04-01 | Cryovac, Inc. | FILM FOR PACKING OF MULTIPLE LAYERS, THERMORRETRACTILE, SEALABLE IN BATTERIES. |
| GB2335910B (en) | 1998-04-01 | 2002-07-03 | Masterfoods S A Nv | Boil-in-bag sachet |
| US6368647B1 (en) | 1998-12-29 | 2002-04-09 | Mars, Incorporated | Ultrasonically activated continuous slitter apparatus and method |
| US6153232A (en) * | 1999-02-11 | 2000-11-28 | Uncle Ben's, Inc. | Boil-in-bag package |
| US6395317B1 (en) | 1999-02-11 | 2002-05-28 | Mars Incorporated | Process and apparatus for forming dual compartment pouches from a continuous web |
| EP1244590A4 (en) * | 1999-11-12 | 2004-11-03 | Krumpet International Llc | Infusion bag squeezing assembly |
| US8642051B2 (en) | 2000-03-21 | 2014-02-04 | Suzanne Jaffe Stillman | Method of hydration; infusion packet system(s), support member(s), delivery system(s), and method(s); with business model(s) and Method(s) |
| DE60130440D1 (en) | 2000-03-21 | 2007-10-25 | Suzanne Jaffe Stillman | ROUNDRY BAG WITH DECORATIVE TOOLS, BEARING ELEMENTS, DISPENSER AND METHOD |
| US6574944B2 (en) | 2001-06-19 | 2003-06-10 | Mars Incorporated | Method and system for ultrasonic sealing of food product packaging |
| US6655948B2 (en) | 2001-08-31 | 2003-12-02 | Mars, Incorporated | System of ultrasonic processing of pre-baked food product |
| US6635292B2 (en) | 2001-10-26 | 2003-10-21 | Mars, Incorporated | Ultrasonic rotary forming of food products |
| WO2003066477A1 (en) * | 2002-02-07 | 2003-08-14 | Teangle A/S | A tea bag |
| US20040131729A1 (en) * | 2003-01-02 | 2004-07-08 | Olivia Helprin | Beverage infusion device |
| US20050048186A1 (en) * | 2003-08-27 | 2005-03-03 | Unilever Bestfoods North America Usa | Infusion system for enhanced flavor beverages |
| US7235273B2 (en) * | 2003-12-22 | 2007-06-26 | Andrea Ruston | Tie down reinforced infusion bag |
| US20060222738A1 (en) * | 2005-04-05 | 2006-10-05 | Ann-Marie Paz | Package for draining an infusion bag |
| SE532210C2 (en) * | 2006-01-09 | 2009-11-17 | One Cafe Internat Ab | Disposable drink infusion bag for single use |
| US20070209523A1 (en) * | 2006-03-10 | 2007-09-13 | Abundant Creations, Inc. | Infusion system |
| US20090246324A1 (en) * | 2008-03-28 | 2009-10-01 | Sluzas Daniel M | Infusion package |
| US8337918B1 (en) * | 2009-03-09 | 2012-12-25 | Fair Sara E | Fillable filter envelope system |
| WO2011158293A1 (en) * | 2010-06-17 | 2011-12-22 | 不双産業株式会社 | Extraction bag and packaging material sheet |
| RU2446085C1 (en) * | 2010-08-20 | 2012-03-27 | Елена Аркадьевна Меринова | Disposable sieve for tea brewing with spinning system |
| RU2011149134A (en) * | 2011-12-02 | 2015-03-27 | Елена Аркадьевна Меринова | METHOD FOR MANUFACTURING A DISPOSABLE BREWING SCREEN WITH EXTRACTION SYSTEM |
| US20140260121A1 (en) * | 2013-03-15 | 2014-09-18 | Yukie Jaqueline Tokuda | Device and method for bagging a consumable product for steeping |
| USD768355S1 (en) * | 2013-09-17 | 2016-10-11 | Steve N. Schwartz | Tea filter bag |
| US9392814B2 (en) | 2014-06-06 | 2016-07-19 | Nicholas J. Singer | Delivery system for drinks |
| USD773313S1 (en) | 2015-06-23 | 2016-12-06 | Nicholas J. Singer | Package |
| CN105501709A (en) * | 2016-01-12 | 2016-04-20 | 徐丽 | Tea bag and manufacturing method thereof |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2335159A (en) * | 1941-09-30 | 1943-11-23 | Ivers Lee Co | Adhesively sealed package |
| US2468464A (en) * | 1946-02-07 | 1949-04-26 | Ivers Lee Co | Infusion package |
| US2466281A (en) * | 1947-09-23 | 1949-04-05 | William R Shaw | Tea bag |
| US2878927A (en) * | 1958-04-02 | 1959-03-24 | Oscar W Tippett | Self-squeezing tea or coffee bag |
| US2881910A (en) * | 1958-04-17 | 1959-04-14 | Clarence W Jones | Tea bag |
| US2986269A (en) * | 1959-11-09 | 1961-05-30 | Goldberg Ernest | Package for tea or other infusion commodities |
| US3191355A (en) * | 1960-01-16 | 1965-06-29 | Morpurgo Fulvio | Tea bags and apparatus for use in their manufacture |
| US3237550A (en) * | 1963-10-18 | 1966-03-01 | Joseph A Christopher | Extraction package for infusion materials |
| US3415656A (en) * | 1965-09-09 | 1968-12-10 | Philip L. Lundgren | Compressible infusion bag |
| US3597222A (en) * | 1968-03-22 | 1971-08-03 | Thaddeus John Kalemba | Infusion packet |
| KR100197323B1 (en) * | 1990-03-14 | 1999-06-15 | 로버트 라페일 피터 | Double chamber infusion bag and method of manufacture thereof |
| CA2093820C (en) * | 1990-10-10 | 2001-09-04 | Anthony Evan Shakspeare | Infusion package |
-
1993
- 1993-09-24 TW TW082107881A patent/TW264443B/zh active
- 1993-09-30 ZA ZA937278A patent/ZA937278B/en unknown
- 1993-09-30 TR TR00874/93A patent/TR27177A/en unknown
- 1993-10-01 AU AU48320/93A patent/AU671300B2/en not_active Ceased
- 1993-10-01 JP JP6508856A patent/JPH08504391A/en active Pending
- 1993-10-01 NZ NZ256118A patent/NZ256118A/en unknown
- 1993-10-01 EP EP93921044A patent/EP0664761B1/en not_active Expired - Lifetime
- 1993-10-01 AT AT93921044T patent/ATE140672T1/en not_active IP Right Cessation
- 1993-10-01 CA CA002146147A patent/CA2146147A1/en not_active Abandoned
- 1993-10-01 DE DE69303824T patent/DE69303824T2/en not_active Expired - Fee Related
- 1993-10-01 US US08/131,262 patent/US5366741A/en not_active Expired - Lifetime
- 1993-10-01 DK DK93921044.9T patent/DK0664761T3/en active
- 1993-10-01 ES ES93921044T patent/ES2089849T3/en not_active Expired - Lifetime
- 1993-10-01 WO PCT/GB1993/002049 patent/WO1994007763A1/en active IP Right Grant
-
1996
- 1996-08-12 GR GR960402138T patent/GR3020770T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE69303824T2 (en) | 1997-01-23 |
| EP0664761A1 (en) | 1995-08-02 |
| TW264443B (en) | 1995-12-01 |
| EP0664761B1 (en) | 1996-07-24 |
| US5366741A (en) | 1994-11-22 |
| AU4832093A (en) | 1994-04-26 |
| DK0664761T3 (en) | 1996-12-02 |
| DE69303824D1 (en) | 1996-08-29 |
| ES2089849T3 (en) | 1996-10-01 |
| JPH08504391A (en) | 1996-05-14 |
| ZA937278B (en) | 1995-03-30 |
| NZ256118A (en) | 1995-11-27 |
| AU671300B2 (en) | 1996-08-22 |
| WO1994007763A1 (en) | 1994-04-14 |
| TR27177A (en) | 1994-11-10 |
| ATE140672T1 (en) | 1996-08-15 |
| GR3020770T3 (en) | 1996-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |