GB2420070A - Infusing device - Google Patents
Infusing device Download PDFInfo
- Publication number
- GB2420070A GB2420070A GB0425221A GB0425221A GB2420070A GB 2420070 A GB2420070 A GB 2420070A GB 0425221 A GB0425221 A GB 0425221A GB 0425221 A GB0425221 A GB 0425221A GB 2420070 A GB2420070 A GB 2420070A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cage
- handle
- infusing device
- elements
- squeezing head
- 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- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/12—Vessels or pots for table use
- A47G19/16—Tea infusers, e.g. infusing bags, egg-shaped infuses
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/18—Apparatus in which ground coffee or tea-leaves are immersed in the hot liquid in the beverage container
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
- Design And Manufacture Of Integrated Circuits (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
An infusing device has a handle 2, a squeezing head 8 carried by a plunger 3, and a cage 6 for receiving a bag containing an infusible substance such as tea, coffee or herbs. The cage includes a number of cage elements 10 which are pivotally secured to the handle 2 passing through apertures in the periphery of the squeezing head 8. The plunger is internally biased by oppositely-acting spring elements so that movement in one direction opens the cage for insertion and removal of a tea bag or the like, and movement in the opposite direction squeezes the bag between the head 8 and the tips of the elements 10. In another embodiment the cage elements are moved independently of the plunger by means of an internal sleeve within the handle. A further device is also described in which the squeezing head is fixed with the handle and the cage elements are pivotally secured to an internal plunger.
Description
INFUSING DEVICE
TECHNICAL FIELD OF THE INVENTION
This invention relates to a device for use in the infusion of various substances. The device is particularly useful in the preparation of beverages formed from infusions of tea, coffee, herbs etc., although it could also be used for making infusions of any infusible substances which can be contained in a porous bag.
BACKGROUND
When making tea with tea bags for example, people often squeeze and agitate the tea bag by means of a spoon in order to expel the concentrated liquid and obtain a stronger infusion. Some people are also in the habit of squeezing tea bags after use in an attempt to reduce the risk of drips and dribbles as the bags are removed to a waste receptacle.
Numerous devices for squeezing tea bags have been proposed. - The most common forms of device act like a pair of tongs, but the parts that grip the bag are generally rigid and often have a large surface area. If the device holds the bag while the contents is infusing it may prevent water from circulating around the bag, but on the other hand, if the device is not used to hold the bag during infusion it then becomes difficult to grip the bag in order to remove it from the water.
The present invention seeks to provide a new and inventive form of device for use with bags of an infusible substance, in which: a) the bag can easily be engaged with the device; b) the device enables the infusion process to be controlled such that a good strong infusion may be obtained when required, or a weaker one if the user so wishes; c) the bag is firmly held throughout the process; d) the bag can be effectively squeezed to expel excess liquid when infusion is complete; and e) the user can easily disengage the bag from the device at the end of the process.
SUMMARY OF THE INVENTION
The present invention provides an infusing device having: - a handle; - a cage defining an infusion space for receiving a bag containing an infusible substance, the cage being so constructed and arranged as to be capable of being placed in an open configuration allowing passage of the bag in and out of the cage and a closed configuration in which the bag is retained within the cage; V - cage-opening means operable from the handle to place the cage in said open configuration; - a squeezing head which projects from said handle to protrude into said infusion space within the chamber; and - means for producing relative movement between the squeezing head and the cage, with the cage in said closed configuration, to squeeze the bag therein.
The present tool firmly holds the bag whilst at the same time facilitating easy engagement and disengagement with the bag and allowing good circulation of liquid. The squeezing head and cage provide very effective squeezing of the bag to expel liquid. In addition, the squeezing head may be used to knead the bag and increase the flow of liquid through the contents during infusion.
BRIEF DESCRIPTION OF THE DRAWINGS
The following description and the accompanying drawings referred to therein are included by way of non-limiting example in order to illustrate how the invention may be put into practice. In the drawings: Figure 1 is a general view of a first infusing device in accordance with the invention; Figure 2 is an axial section through part of the infusing device; Figure 3 is a general view of a second form of infusing device in accordance with the invention; - fre 4 is a general view of a third form of infusing device in accordance with the invention; Figure 5 is an axial section through part of the third infusing device; Figure 6 is a general view of a fourth form of infusing device in accordance with the invention; Figure 7 is an axial section through the fourth infusing device; and Figure 8 is part of the axial section of Fig. 7 showing the cage in an open configuration.
DETAILED DESCRIPTION OF THE DRAWINGS
Referring firstly to Fig. 1, the first form of infusing device I has a generally elongate cylindrical handle 2 which contains an axially movable plunger 3.
The plunger projects from one end of the handle, terminating in an operating knob 4, and the adjacent end of the handle 2 is provided with an annular projecting flange 5. At the opposite end, the handle 2 is provided with a cage 6 for receiving a tea bag or similar bag-like container filled with an infusible particulate substance. The plunger 3 also projects from this end of the handle 2 to carry a co-axially mounted generally discshaped squeezing head 8. The cage 6 is formed by claw-like elements (preferably about six in number) which may be formed of a tough, heatresistant, substantially rigid plastic such as polyamide, or any other suitable material. The elements 10 have inclined portions 12, which diverge outwardly from the handle, leading into substantially straight and parallel axial portions 13, which in turn join tip portions 14 which are directed radially inwards, substantially meeting at the axis of the handle.
The axial portions 13 pass through circumferentially-spaced peripheral apertures 9 in the squeezing head 8.
Referring now to the sectional view of Fig. 2, the inner ends of the cage elements 10 are inserted into the end of the handle 2, being received within axial grooves 16 in the plunger 3. Inside the handle, the inclined portions 13 of the elements 10 lead into short generally axial portions 15 which terminate in hook-like out-turned anchoring portions 17 which are pivotally located in a common circumferential recess 18, or separate circumferentially-spaced recesses, formed inside the handle 2. The plunger 3 is provided with an annular abutment 20 within the handle 2, and the handle contains oppositely-acting first and second compression springs 21 and 22, received in an annular space between the handle and the plunger 3. The first spring 21 acts between the abutment 20 and an internal shoulder 23 formed in the handle 3 towards the recess 18, while the second spring 22 acts between the abutment 20 and a further abutment such as an end plug 24 which is screwed or otherwise secured within the end of the handle 3 adjacent to the flange 5.
Referring back to Fig. 1, if the handle 2 is held in one hand and the knob 4 is pulled in direction A against the action of the second spring 22, using the other hand for example, the squeezing head 8 will move towards the handle and start to travel along the divergent portions 12 of the elements causing the elements to pivot radially outwards. The tip portions 14 will therefore move apart allowing a tea bag or the like to be inserted into the cage formed by the elements 10. When the knob 4 is released the spring 22 will return the plunger 3 to the equilibrium position causing the elements 10 to return to the position illustrated in Fig. I and thus close around the tea bag. The number and relative spacing of the elements 10 should be sufficient to prevent the bag from dropping out of the cage.
The tea bag can now be inserted into hot water, held within the device.
The cage 6 allows the water to circulate freely around and through the tea bag so that the dried tea leaves contained within the bag infuse through the porous wall of the bag. If a medium to strong beverage is required the infusion process can be assisted by agitating the device within the water.
Furthermore, by depressing the knob in the direction of the cage 6 against the first spring 21, as indicated by the arrow B, the tea bag can be compressed between the squeezing head 8 and the inwardly-directed tip portions 14 of elements 10, thereby "pumping" water through the contents of the bag. This may conveniently be carried out by placing the first and second fingers of one hand on opposite sides of the handle 2 bearing against the flange 5 whilst pressing the thumb against the end of the knob 4.
When the infusion process is complete the device can be used to lift the bag from the water. During this final step the knob 4 can again be depressed towards the cage 6 so that the bag is squeezed between the squeezing head 8 and the tip portions 14 of the cage 6, thereby expelling any surplus liquid from the bag. As a result, the tea bag is largely free from drips and can easily be moved to a suitable waste receptacle.
Release of the used tea bag is assisted by pulling the knob 4 away from the cage to open the elements 10, as described. The compressed bag will either drop out of the cage or can be removed with the assistance of a slight shaking action.
The second form of infusing device 10, which is shown in Fig. 3, also has a generally elongate handle 32, but in this case the handle is designed to be held and operated using one hand. The internal arrangement of the handle, and the general arrangement of the squeezing head 8 and cage 6 formed by elements 10, is substantially as described in relation to Fig.s I and 2 above. The handle 32 has an enlarged and flaftened end 33 to sit comfortably in the palm of the hand, and may be formed with a recessed area 34 to ensure that the handle is correctly balanced. The plunger 3 can be moved back and forth by means of a knob 36, which may, for example, be secured to the internal abutment 20 of the plunger 3 to project laterally through an axial slot 37 in the top side of the handle for operation by the user's thumb. Again, the plunger 3 is biased to an equilibrium position between oppositely-acting spring elements so that moving the knob 36 away from the cage 6 will open the elements 10, while moving the knob in the opposite direction enables a tea bag held in the cage to be squeezed between the squeezing head 8 and the inwardly- directed tips of the cage elements 10.
A further modified form of device described above is illustrated in Fig.s 4 and 5. This device 1 also has a generally elongate cylindrical handle 2 which contains an axially movable plunger 3. The plunger projects from one end of the handle, terminating in an operating knob 4. At the opposite end, the handle 2 is provided with a cage 6 for receiving a tea bag or similar item. The plunger 3 also projects from this end of the handle 2 to carry a co-axially mounted generally disc-shaped squeezing head 8. The cage 6 is formed by a number of claw-like elements 10 which, although the elements 10 are smoothly curved and are less angular than the elements 10 of Fig.s I and 2, they again have inclined portions 12, which diverge outwardly from the handle, leading into generally parallel axial portions 13, which in turn join inwardly-directed tip portions 14 substantially meeting at the axis of the handle. The elements are spaced about the periphery of the squeezing head 8 without being connected therewith.
Referring particularly to the sectional view of Fig. 5, the inner ends of the cage elements 10 are pivotally mounted within enlarged recesses 18 in the end of the handle 2. Inside the handle, a sleeve 40 is slidably located about the plunger 3, being independently movable by means of a knob 41 which projects laterally through an axial slot 42 in the side of the handle 2 for operation by the user's thumb. The sleeve 40 is operably connected with the inner ends of the elements 10, for example by means of circumferential ribs 43 which engage teeth 44 disposed about the pivot axis of each element 10. The handle may contain respective spring elements (not shown) which bias the plunger 3 and the sleeve 40 away from the cage 6. Thus, if the knob is slid towards the cage 6 the elements will move apart allowing a tea bag or the like to be inserted into the cage formed by the elements 10. When the knob 4 is released the spring will return the slider 40 to the starting position causing the elements 10 to return to the closed position illustrated in the drawings. Squeezing of the tea bag is similarly achieved by depressing the plunger 3 by means of the knob 4.
A fourth form of device is illustrated in Fig.s 6 to 8. This form of the device has an elongate bullet-shaped handle 2 which contains an axially movable plunger 3. The plunger projects from one end of the handle, terminating in an operating knob 4. At the opposite end, the handle 2 is provided with a cage 6 for receiving a tea bag or similar item. In this embodiment the handle 2 is formed such that the end of the handle provides a generally disc-shaped squeezing head 48. The cage 6 is formed by a number of claw-like elements 10 having inclined portions 12, which diverge outwardly from the handle, leading into generally parallel axial portions 13, which in turn join inwardly-directed tip portions 14 substantially meeting at the axis of the handle. The elements 10 are spaced about the periphery of the squeezing head 8.
Referring to the sectional view of Fig. 7, the divergent portions 12 pass through axially-extending slot-like apertures 50 in the side of the handle 2 wherein the inner ends 51 of the cage elements 10 extend generally parallel to the axial portions 13 and are pivotally connected within axial recesses 52 in the plunger 3. The handle may contain respective spring elements (not shown) which bias the plunger 3 to the position shown in Fig. 6, mid-way between the positions shown in Fig.s 7 and 8. If the knob 4 is pushed towards the cage 6 the divergent portions 12 engage the ends of the slots 50 adjacent to the squeezing head 48 as shown in Fig. 8, causing the cage elements 10 to move apart allowing a tea bag or the like to be inserted into the cage. When the knob 4 is released the spring will return the plunger 3 to the starting position causing the elements 10 to return to the intermediate closed position illustrated in Fig. 6. Squeezing of the tea bag is achieved by pulling the knob 4 out of the handle 2 so that the divergent portions 12 travel rearwards along the slots to squeeze the bag Tbetween the head 48 and the tip portions 14, as shown in Fig. 7. During the squeezing process the cage elements 10 are restrained from moving outwards by reception of their axial inner ends 51 within the handle 2.
In each of the tools described above the number of cage elements may vary, generally between three and ten such elements being preferred.
As noted above, the tool can be used in the preparation of any infusion made from a substance contained within a porous bag. A portion of any infusible substance used in the preparation of beverages may be placed in the bag prior to sealing. In general, this will be a plant material such as leaves, petals or beans, which may be used in a divided form as obtained from the plant, dried or roasted. The most common material used in the preparation of infused beverages is derived from the tea plant camel/ia sinensis, although other plant materials are sometimes used, including matte, chamomile, mint, vervien, linden, hibiscus, orange blossom, lemon grass, blackberry leaves, skullcap, verbena, comfrey and alfalfa. Ground roasted coffee beans may also be used.
It will be appreciated that the features disclosed herein may be present in any feasible combination. Whilst the above description lays emphasis on those areas which, in combination, are believed to be new, protection is claimed for any inventive combination of the features disclosed herein.
Claims (24)
1. An infusing device having: - a handle; - a cage defining an infusion space for receiving a bag containing an infusible substance, the cage being so constructed and arranged as to be capable of being placed in an open configuration allowing passage of the bag in and out of the cage and a closed configuration in which the bag is retained within the cage; cage-opening means operable from the handle to place the cage in said open configuration; - a squeezing head which projects from said handle to protrude into said infusion space within the chamber; and - means for producing relative movement between the squeezing head and the cage, with the cage in said closed configuration, to squeeze the bag therein.
2. An infusing device according to Claim I in which the handle is of elongate shape and both the squeezing head and the cage are provided at one end of the handle.
3. An infusing device according to Claim I or 2 in which the means for producing relative movement between the squeezing head and the cage includes an inner member which is movable within the handle.
4. An infusing device according to Claim 3 in which the inner member is movable against spring means to squeeze the bag between the squeezing head and the cage. - 12-
5. An infusing device according to Claim 4 in which said spring means is contained within the handle.
6. An infusing device according to Claim 5 in which said spring means comprises a coiled spring element which is located about the inner member, acting between the inner member and the handle.
7. An infusing device according to any of Claims 3 to 6 in which the inner member is biased to an equilibrium position between oppositely- acting spring elements.
8. An infusing device according to any of Claims 3 to 7 in which the inner member can be moved relative to the handle by means of a knob at the opposite end of the handle from the squeezing head.
9. An infusing device according to any of Claims 3 to 7 in which the inner member can be moved relative to the handle by means of a knob which is slidable along a longitudinally-extending slot in the handle.
10. An infusing device according to any preceding claim in which the cage includes a plurality of substantially rigid, relatively movable cage elements.
11. An infusing device according to Claim 10 in which cage elements are arranged about the periphery of the squeezing head.
12. An infusing device according to Claim 11 in which the cage elements are disposed at substantially equal intervals about the periphery - 13- of the squeezing head.
13. An infusing device according to Claim 10 to 12 in which the cage elements comprise a plurality of elongate fingers.
14. An infusing device according to any of Claims 10 to 13 in which cage elements are pivotally connected at the handle.
15. An infusing device according to Claim 14 in which cage- opening means is arranged to pivotally move the cage elements relative to each other to place the cage in said open configuration.
16. An infusing device according to Claim 15 in which the cage elements pass through apertures in the periphery of the squeezing head whereby the elements are pivotally moved relative to each other by relative movement between the squeezing head and the cage elements.
17. An infusing device according to Claim 16 in which the cage elements include portions which diverge outwardly from the handle whereby the cage elements are pivotally moved by relative movement between the squeezing head and said outwardly divergent portions.
18. An infusing device according to Claim 16 or 17 in which the cage elements include substantially parallel portions followed by inwardlydirected portions. -
19. An infusing device according to any preceding claim in which squeezing head is movable relative to the handle.
20. An infusing device according to any of Claims 1 to 18 in - 14 - which squeezing head is fixed relative to the handle.
21. An infusing device according to any preceding claim in which the cageopening means acts independently of the means for producing relative movement between the squeezing head and the cage.
22. An infusing device according to Claim 21 in which the cage- opening means comprises a sleeve which is disposed within the handle.
23. An infusing device according to Claim 22 in which the sleeve is connected to a knob which is slidable along a longitudinally-extending slot in the handle.
24. An infusing device substantially as described with reference to the drawings.
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0425221A GB2420070A (en) | 2004-11-13 | 2004-11-13 | Infusing device |
GB0508038A GB2420071B (en) | 2004-11-13 | 2005-04-21 | Infusing device |
US11/667,503 US20080028945A1 (en) | 2004-11-13 | 2005-11-11 | Infusing Device |
JP2007540718A JP2008519630A (en) | 2004-11-13 | 2005-11-11 | Infusion device |
PL05810700T PL1827178T3 (en) | 2004-11-13 | 2005-11-11 | Infusing device |
CN2005800385605A CN101060801B (en) | 2004-11-13 | 2005-11-11 | Infusing device |
PCT/GB2005/004371 WO2006051322A1 (en) | 2004-11-13 | 2005-11-11 | Infusing device |
DE602005018962T DE602005018962D1 (en) | 2004-11-13 | 2005-11-11 | INFUSION DEVICE |
AT05810700T ATE454838T1 (en) | 2004-11-13 | 2005-11-11 | INFUSION DEVICE |
ES05810700T ES2339687T3 (en) | 2004-11-13 | 2005-11-11 | INFUSION DEVICE |
EP05810700A EP1827178B1 (en) | 2004-11-13 | 2005-11-11 | Infusing device |
KR1020077010790A KR20070085329A (en) | 2004-11-13 | 2005-11-11 | Infusing device |
ZA200703816A ZA200703816B (en) | 2004-11-13 | 2007-05-11 | Infusing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0425221A GB2420070A (en) | 2004-11-13 | 2004-11-13 | Infusing device |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0425221D0 GB0425221D0 (en) | 2004-12-15 |
GB2420070A true GB2420070A (en) | 2006-05-17 |
Family
ID=33523786
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0425221A Withdrawn GB2420070A (en) | 2004-11-13 | 2004-11-13 | Infusing device |
GB0508038A Expired - Fee Related GB2420071B (en) | 2004-11-13 | 2005-04-21 | Infusing device |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0508038A Expired - Fee Related GB2420071B (en) | 2004-11-13 | 2005-04-21 | Infusing device |
Country Status (6)
Country | Link |
---|---|
CN (1) | CN101060801B (en) |
AT (1) | ATE454838T1 (en) |
DE (1) | DE602005018962D1 (en) |
ES (1) | ES2339687T3 (en) |
GB (2) | GB2420070A (en) |
ZA (1) | ZA200703816B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2009101139B4 (en) * | 2009-03-12 | 2010-08-26 | Georgeta Grigori | Multipurpose manual mixer |
US9814333B2 (en) * | 2012-02-27 | 2017-11-14 | Helen Of Troy Limited | Infusion/dispersion device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2678000A (en) * | 1952-05-22 | 1954-05-11 | Scheidt Joseph | Tea bag holder |
EP0248124A1 (en) * | 1986-05-19 | 1987-12-09 | Dalgleish, James McNair | A package for ingredients |
GB2214785A (en) * | 1988-02-05 | 1989-09-13 | David Gwyer Storey | Beverage infusing device |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4172610A (en) * | 1978-07-17 | 1979-10-30 | Johnson Verlene G | Ice cube pickup device |
-
2004
- 2004-11-13 GB GB0425221A patent/GB2420070A/en not_active Withdrawn
-
2005
- 2005-04-21 GB GB0508038A patent/GB2420071B/en not_active Expired - Fee Related
- 2005-11-11 DE DE602005018962T patent/DE602005018962D1/en active Active
- 2005-11-11 ES ES05810700T patent/ES2339687T3/en active Active
- 2005-11-11 CN CN2005800385605A patent/CN101060801B/en not_active Expired - Fee Related
- 2005-11-11 AT AT05810700T patent/ATE454838T1/en not_active IP Right Cessation
-
2007
- 2007-05-11 ZA ZA200703816A patent/ZA200703816B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2678000A (en) * | 1952-05-22 | 1954-05-11 | Scheidt Joseph | Tea bag holder |
EP0248124A1 (en) * | 1986-05-19 | 1987-12-09 | Dalgleish, James McNair | A package for ingredients |
GB2214785A (en) * | 1988-02-05 | 1989-09-13 | David Gwyer Storey | Beverage infusing device |
Also Published As
Publication number | Publication date |
---|---|
ATE454838T1 (en) | 2010-01-15 |
GB0508038D0 (en) | 2005-05-25 |
ZA200703816B (en) | 2008-08-27 |
GB0425221D0 (en) | 2004-12-15 |
ES2339687T3 (en) | 2010-05-24 |
CN101060801B (en) | 2011-07-06 |
CN101060801A (en) | 2007-10-24 |
GB2420071B (en) | 2009-03-18 |
GB2420071A (en) | 2006-05-17 |
DE602005018962D1 (en) | 2010-03-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |