EP2991527A1 - Cafetière a piston - Google Patents

Cafetière a piston

Info

Publication number
EP2991527A1
EP2991527A1 EP14719803.0A EP14719803A EP2991527A1 EP 2991527 A1 EP2991527 A1 EP 2991527A1 EP 14719803 A EP14719803 A EP 14719803A EP 2991527 A1 EP2991527 A1 EP 2991527A1
Authority
EP
European Patent Office
Prior art keywords
piston
retrieval
container
fluid
plunger device
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Withdrawn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
EP14719803.0A
Other languages
German (de)
English (en)
Inventor
Frederik Foged Dreyer-Nielsen
Troels Pedersen
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.)
FRED ApS
Original Assignee
FRED 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 FRED ApS filed Critical FRED ApS
Priority to EP14719803.0A priority Critical patent/EP2991527A1/fr
Publication of EP2991527A1 publication Critical patent/EP2991527A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A47J31/20—Apparatus in which ground coffee or tea-leaves are immersed in the hot liquid in the beverage container having immersible, e.g. rotatable, filters

Definitions

  • the present invention relates to a press pot for brewing beverages, comprising a container for containing a fluid, and a plunger device for being inserted into the container of such press pot.
  • a press pot also known as a coffee plunger or a French press, is a widely used device for making coffee, tea or other beverages by mixing a fluid with a substance such as grinded coffee, tea leaves or other ingredients.
  • a fluid is poured into the pot and mixed with the substance.
  • the substance has to be separated from the fluid to provide a drinkable fluid.
  • This is done by inserting a plunger comprising a filter into the pot and by subsequently pushing the plunger, whereby the filter is pressed down through the fluid.
  • the substance such as grinded coffee or tea leaves, is filtered from the fluid.
  • the plunger has been pushed all the way down, the wetted substance, also known as grounds, is separated from the fluid and collected in a lower section of the pot below the filter.
  • a press pot for brewing beverages comprising:
  • the plunger device for being inserted into the container, the plunger device comprising a piston filter element for filtering out a substance suspended in the fluid, and a piston rod extending from the piston filter element and adapted to move the piston filter element through the fluid,
  • plunger device further comprises:
  • connection mechanism for releasably connecting the retrieval piston element with the piston rod whereby the retrieval piston element may be independently inserted into the container and subsequently connected with the piston rod to retrieve the retrieval piston element from the container and wherein the connection mechanism is arranged between the piston filter element and the retrieval piston, and wherein the connection mechanism is a snap-fit mechanism comprising a male part adapted to enter into engagement with a mating female part to releasably connect the retrieval piston element with the piston rod.
  • a filtered out substance may be removed in an effective way, and the press pot may be easily cleaned by retrieving the filtered out substance and collected between the retrieval piston element and the piston filter element and discarding it directly into e.g. the bin. In this way the use of large amounts of water for cleaning the press pot may be avoided, and clogging of drains due to build-up of grounds may be prevented.
  • the retrieval position element may be positioned below the piston filter element.
  • the retrieval piston element may be provided at one extremity of the piston rod and the piston filter element may be positioned at a position along the piston rod between the retrieval piston element and another extremity of the piston rod.
  • the connection mechanism may be arranged between the piston filter element and the retrieval piston.
  • connection mechanism may be a snap-fit mechanism comprising a male part adapted to enter into engagement with a mating female part to releasably connect the retrieval piston element with the piston rod.
  • the male part and the female part may be configured to provide a larger force for releasing the female part from the male part than engagement force for engaging the female part with the male part.
  • Said female part may comprise two or more flexible fingers.
  • Said snap-fit mechanism may be a cylindrical snap-fit joint comprising a cylindrical male part adapted to enter into engagement with a mating groove provided in a female part.
  • the female part and/or the male part may have a ratchet- shaped cross section along the longitudinal axis. In this way it is achieved that a larger force is required to retract the male part from the female part as compared to push the male part and the female part into engagement, or vice versa.
  • the distance between the projecting part of the male part and the projecting part of the female part is 0.1mm - 2mm or 0.2 - 1mm. In this way it is achieved that each movement passing a projection, i.e. "snapping", is easily felt by the user. Hence, it is possible for the end-user to determine that the snap-fit joint is safely locked.
  • the ratchet-shaped cross section may comprise two or more ratchets. In this way it is achieved that the retrieval piston element and the piston filter element are compressed to the desired distance.
  • a part of the connection mechanism e.g. the male part, comprises an indication of the amount of e.g. coffee to be poured into the press pot. In this way it is achieved that the correct amount of coffee is used, even when no other measuring device is nearby. Hence, the correct dosage is achieved.
  • the female part may comprise two or more flexible fingers arranged to enter into locking engagement with the male part.
  • the female part may comprise three flexible fingers.
  • the female part may comprise four flexible fingers.
  • the flexible fingers may be parts of a slit annular wall.
  • the flexible fingers may be manufactured from sheet metal by a bending or folding process. In an embodiment, the flexible fingers may be milled from a solid piece of material, e.g. metal or plastic or similar material. In an embodiment, the flexible fingers may be manufactured by a casting process or injection moulding process.
  • the flexible fingers may be considered as wall elements since they are placed equidistantly around a common centre.
  • the piston rod of the press pot may be solid. In this way a solid connection to the connection mechanism is achieved.
  • the part of the connection mechanism projecting from the retrieval piston element may be projecting less than 80 mm or less than 70mm or less than 60 mm from the retrieval piston element.
  • the male part and the female part may be configured to provide a larger force for releasing the female part from the male part than engagement force for engaging the female part with the male part.
  • the difference between the releasing force and the engagement force may be obtained by having a serrated annular surface on the male part of the snap mechanism or on both the male and the female parts.
  • the serrated surface may be saw-toothed or similar.
  • connection mechanism may be a snap-fit joint of the ball and socket type comprising a ball part adapted to enter into engagement with a mating socket part to releasably connect the retrieval piston element with the piston rod.
  • the cylindrical male part may comprise a plurality of exterior recesses adapted to enter into engagement with a circumferential protrusion provided on an interior wall of the mating groove of the female part, whereby a distance between the piston filter element and the retrieval piston may be varied when the retrieval piston is connected with the piston rod .
  • the male part may extend from the retrieval piston element.
  • the male part extending from the retrieval piston element By the male part extending from the retrieval piston element, the risk that the substance to be suspended, such as grinded coffee, tea leaves or the like, will interfere with the connection mechanism is reduced.
  • the female part may extend from the retrieval piston element.
  • connection mechanism may be positioned substantially in the centre of the plunger device.
  • the retrieval piston element may comprise a plate element for collecting the substance filtered from the fluid.
  • the filtered out substance may be easily removed from between the retrieval piston element and the piston filter element when retrieved from the container.
  • the filtered out substance may be discharged directly into a bin by shaking the plunger device over the bin or by simply knocking the plunger device against the side of the bin.
  • the plate element may comprise an indentation for keeping the substance filtered from the fluid on the plate element.
  • the plate element may comprise through holes for allowing fluid to pass through the plate element to prevent the creation of a vacuum below the retrieval piston element.
  • a circumferential edge of the plate element may comprise a number of indents or recesses. In this way it is possible to equalise the pressure one the one side of the plate element with the pressure on the opposite side. Hence, it is prevented that vacuum is created below the retrieval piston element.
  • the plate element of the retrieval piston element may comprise a recess along the full diameter of the plate element.
  • the plate element is releasable from even surfaces, e.g. a table, and furthermore from the bottom of the container.
  • the plate element may comprise more recesses along more diameters. Said recesses may be arranged perpendicularly to each other.
  • a circumferential edge of the plate element of the retrieval piston element may comprise a number of projections.
  • the projections serve to create a small space between the inner surface of the container/pot and the plate element. In this way it is achieved that the plate element does not stick to the bottom of the container.
  • the plate element of the retrieval piston element may comprise a metal plate. In this way it is possible to increase the weight of the plate element. In this way it is possible to ensure that the retrieval piston element is kept in position when filling water into the container.
  • the plate element of the retrieval piston element may comprise a metal plate fully enclosed in another material such as plastic, rubber or the like. In this way it is possible to increase the weight of the plate element without the risk of residues of coffee or similar getting stuck on the plate element.
  • the metal plate of the plate element may have a weight of 5 -40g or 10-35g or 15-30g or 20-25g.
  • the circumferential edge of the plate element of the retrieval piston element may have an elliptic outline. In this way the plate element has a slight misfit to a circular outline of the container. Consequently, the risk of vacuum below the plate element of the retrieval piston element is minimised.
  • the retrieval piston element may comprise a circumferential edge element adapted to seal against an inside wall of the container.
  • Said edge element may be a flexible edge element made from a rubber material.
  • the retrieval piston element may be a disposable element designed for single use only.
  • the plate element may be manufactured from a biodegradable material.
  • the container may be a double-walled insulating container.
  • the present invention further relates to a plunger device for being inserted into a container, the plunger device comprising :
  • a piston filter element for filtering out a substance suspended in a fluid and a piston rod extending from the piston filter element and adapted to move the piston filer element through the fluid
  • plunger device further comprises
  • retrieval piston element for removing the substance filtered from the fluid, from the container, the retrieval piston element being operably connected with the piston rod to retrieve the retrieval piston element from the container.
  • the plunger device as described above may further comprise a connection mechanism for releasably connecting the retrieval piston element with the piston rod, and the retrieval piston element may be adapted to be independently inserted into the container, whereby the retrieval piston element may subsequently be connected with the piston rod while the retrieval piston element is positioned inside the container.
  • Fig. 1 shows a cross-section of a press pot comprising a plunger device according to one embodiment of the invention
  • Fig. 2 shows a plunger device
  • Fig. 3 shows the plunger device with a disengaged retrieval piston element
  • Fig. 4 shows a cross-section of a plunger device
  • Figs. 5a-5b show the plunger device with the snap connection in two different positions
  • Fig. 6 shows a cross-section of one embodiment of a retrieval piston element
  • Fig. 7 shows another embodiment of a plunger device
  • Figs. 8a-8d show the use of a press pot comprising a plunger device according to one embodiment of the invention
  • Fig. 9 shows another embodiment of the plunger device with the snap connection
  • Fig. 10 shows another embodiment of the connection mechanism
  • Figs. 11A and 11B show another embodiment of the connection mechanism using sheet metal
  • Figs. 12A and 12 B show another embodiment of the connection mechanism in an engaged state
  • Figs. 13A and 13B show another embodiment of the connection mechanism having and enclosed metal plate
  • Figs. 14A and 14B show another embodiment of the plate element
  • Figs. 15A and 15B show another embodiment of the plate element with recesses
  • Figs. 16A and 16B show another embodiment of the plate element with recesses
  • Figs. 17A and 17B show another embodiment of the plate element with projections
  • Figs. 18A and 18B show another embodiment of the plate element
  • Figs. 19 shows another embodiment of the male part of the connection mechanism
  • Fig. 20 shows the male and female part of the connection mechanism. All the figures are highly schematic and not necessarily to scale, and they show only those parts which are necessary in order to elucidate the invention, other parts being omitted or merely suggested.
  • Fig. 1 shows a press pot 1 for brewing beverages, such as coffee and tea.
  • the press pot comprises a container 9, wherein a fluid 12 may be contained and mixed with a substance 11 (shown in Fig. 8b), such as grinded coffee or tea leaves.
  • the container 9 may be of varying design and may for example be a double-walled insulating container as shown in Fig. 1, but is not limited hereto.
  • the container 9 may also for example be a traditional glassware container frequently used for press pots.
  • the press pot further comprises a plunger device 2 adapted to be inserted into the container as shown in Fig. 1.
  • the plunger device comprises a piston rod 5, a piston filter element 3 movable by the piston rod 5, and a retrieval piston element 4 provided at one extremity of the piston rod 5 below the piston filter element as shown in Fig. 4.
  • the piston rod 5 extends through a lid 10 and along a centre axis 13 of the press pot 1 (shown in Fig. 4). At another extremity the piston rod 5 is provided with a knob 51 adapted to facilitate operation of the piston rod.
  • the piston filter element is provided at a distance d from the retrieval piston element 4 and encircles the piston rod 5.
  • the piston filter element 3 comprises a filter element 32 arranged between an upper retainer element 31 and a lower retainer element 33.
  • the two retainer elements are provided with through holes 35 as best seen in Fig. 2, whereby fluid may pass through the piston filter element 3.
  • the piston filter element may be constructed in a number of other ways envisaged by the skilled person without departing from the scope of the present invention.
  • the press pot further comprises a connection mechanism 6 for releasably connecting the retrieval piston element with the piston rod 5.
  • the connection mechanism 6 shown in the figures is a cylindrical snap-fit mechanism 6 comprising a cylindrical male part 7 adapted to enter into engagement with a mating groove 81 provided in a female part 8.
  • the male part 7 and the female part 8 are positioned substantially in the centre of the plunger device extending along the centre axis 13.
  • the male part 7 extends from the retrieval piston element towards the piston filter element 3 for engagement with the female part 8. It is seen in figures 1-3 that the male part 7 extends along the longitudinal axis of the piston rod 5. However, the part projecting from the retrieval piston element 4 in this embodiment, i.e.
  • the male part 7 is significantly shorter than the piston rod 5 and hence significantly shorter than the longitudinal axis of the container 9.
  • the male part 7 and the female part 8 may be substantially fully received into each other within the perimeter of the container 9 and within the boundaries delimited by part of the container and the piston filter element 3.
  • the snap mechanism 6, i.e. the male part 7 and the female part 8 may be positioned between the piston filter element 3 and the bottom of the container 9.
  • the cylindrical male part 7 comprises a plurality of exterior recesses 71 adapted to enter into engagement with a circumferential protrusion 83 provided on an interior wall 82 of the mating groove 81 of the female part 8 as shown in Fig. 4.
  • the mating groove 81 intersects the female part 8, thereby creating two opposite wall elements 84 or flexible fingers.
  • the wall elements 84 or flexible fingers have a certain flexibility allowing the cylindrical male part 7 to enter the mating groove 81 and the circumferential protrusion 83 to enter into engagement with one of the recesses 71 of the male part 7.
  • the wall elements bend outwards to a certain degree to allow the circumferential protrusion 83 to enter into engagement with one of the recesses 71.
  • wall elements 84 With wall elements 84 with a certain flexibility, a better fit between the male 7 part and the female part 8 is obtained and the connection between the retrieval piston element 4 and the piston rod 5 is improved.
  • the male part 7 and the female part 8 may be substantially fully received into each other within the perimeter of the container 9 and within the boundaries delimited by part of the container and the piston filter element 3.
  • the snap mechanism 6, i.e. the male part 7 and the female part 8 may be positioned between the piston filter element 3 and the bottom of the container 9.
  • the distance d is the smallest possible.
  • the distance d is still shorter than the piston rod 5.
  • the distance d is shorter than the length of the piston rod 5.
  • the circumferential protrusion 83 may enter into engagement with any of the plurality of recesses 71 of the male part, whereby the retrieval piston may be connected with the piston rod with various distances between the piston filter element and the retrieval piston element as shown in Figs. 5a and 5b.
  • Fig. 5a shows how the circumferential protrusion 83 enters into engagement with a recess 71 of the male part arranged further above the retrieval piston element 4 compared to Fig. 5b, wherein the circumferential protrusion 83 enters into engagement with a recess 71 of the male part arranged closer to the retrieval piston element.
  • the retrieval piston element comprises a plate element 41 having an indentation 42 as shown in Fig. 4, for keeping the substance filtered from the fluid on the plate element.
  • the plate element may also be provided without such indentation or with a deeper indentation capable of containing more of the filtered out substance.
  • the plate element 41 comprises through holes 43 through which fluid may pass to prevent the creation of a vacuum below the retrieval piston element when the retrieval position element is removed from the container.
  • a circumferential edge 44 of the plate element 41 may also be rounded off as shown in Fig. 4 to facilitate insertion of the retrieval piston element into the container and to accommodate the inside shape of the container.
  • Fig. 6 shows another embodiment of a retrieval piston element 4 comprising a plate element 41 and a circumferential edge element 45 extending in an outwards and upwards direction from the circumference of the plate element 41, thereby providing an indentation 42 with a functionality similar to that of the indentation described above.
  • the edge element 45 may be a sealing element adapted to seal against an inside wall 91 or wall surface of the container shown in Fig. 1.
  • the edge element 45 may thus be made from a rubber material or other resilient material such as silicone.
  • the plunger device 2 is shown.
  • the female part 8 extends from the retrieval piston element and the male part extends from a leading side 34 of the piston filter element.
  • the retrieval piston element 4 Before filling the container 9, the retrieval piston element 4 is inserted into the container and placed at the bottom of the container as shown in Fig. 8a. Subsequently a fluid 12, such as water and a substance 11, such as grinded coffee or tea leaves are poured into the container 9 on top of the retrieval piston element 4 as shown in Fig. 8b. The substance 11 is now suspended in the fluid 12 in the container 9, and the mixture may be left to brew or infuse for a certain period of time. Subsequently the piston filter element 3 is inserted into the container and pushed through the fluid by pushing on the piston rod 5, thereby separating the substance 11 from fluid.
  • a fluid 12 such as water and a substance 11, such as grinded coffee or tea leaves are poured into the container 9 on top of the retrieval piston element 4 as shown in Fig. 8b.
  • the substance 11 is now suspended in the fluid 12 in the container 9, and the mixture may be left to brew or infuse for a certain period of time.
  • the substance 11 is filtered from the fluid to provide a fluid or filtrate 12 substantially free from the suspended substance 11.
  • the filtered out substance 11 is collected on the leading side 34 of the piston filter element and forced towards the bottom of the container 9.
  • the male part 7 and the female part 8 of the connection mechanism 6 enter into engagement to operably connect the retrieval piston element 4 with the piston rod 5.
  • the resulting distance between the retrieval piston element 4 and the piston filter element 3 may vary as described in further detail above.
  • the filtered out substance 11 is collected between the retrieval piston element 4 and the piston filter element 3.
  • the part projecting from the retrieval element 4 e.g. either a male part or a female part, extends to less than half of the height of the container 9.
  • the male part extends less than half of the height of the container 9.
  • the piston rod is pulled to remove the retrieval piston element 4 and the piston filter 3 from the container as shown in Fig. 8d.
  • the filtered out substance 11 collected between the two are easily removed from the container without the need for additional tools or large amounts of water.
  • the filtered out substance may be discharged directly into a bin e.g. by shaking the plunger device over the bin or by simply knocking the plunger device against the side of the bin as shown in Fig. 8d.
  • Fig. 9 shows a plunger device in which a female part 8 extending from the piston rod is connecting with a male part 7 extending from the retrieval piston element 4.
  • the female part 8 has a different design than that shown in Fig. 5b.
  • the female part 8 has a longer mating groove so that the wall elements have a greater flexibility, allowing the cylindrical male part 7 to enter the mating groove and the circumferential protrusion 83 to enter into engagement with one of the recesses of the male part 7.
  • FIG. 10 shows the connection mechanism 6 comprising the female part 8 and the male part 7.
  • the female part 8 comprises three flexible fingers 88.
  • the flexible fingers 88 are somewhat similar to the wall elements 84 previously described (not shown). It is seen that the male part 7 comprises three positions, i.e. recesses, in which the projections 881 of the female part 8 can engage.
  • the arrow RA shows the line of movement of the plate element 4 in which the plate element 4 is restricted when the female part 8 comprises three flexible fingers 88 instead of just two.
  • Figs. 11A and 11B show flexible fingers 88 made of sheet metal.
  • a metal plate 90 is positioned so that the male part 7 is connected directly with the metal plate 90, e.g. by a thread or by welding or similar. It is seen that the circumferential edge 44 of the plate element 41 is made from a second material, e.g. from a different material such as plastic, polymer or similar.
  • Figs. 12A and 12B show flexible fingers 88 made of a cast or milled material.
  • the male part 7 and the female part 8 are shown in an engaged position.
  • a metal plate 90 is positioned so that the male part 7 is connected directly with the metal plate 90, e.g. by a thread or by welding or similar. It is seen that the circumferential edge 44 of the plate element 41 is made from a second material, e.g. from a different material such as plastic, polymer or similar.
  • Figs. 13A and 13B show flexible fingers 88 made of a cast or milled material.
  • the male part 7 and the female part 8 are shown in an engaged position.
  • a metal plate 90 is positioned so that the male part 7 is connected directly with the metal plate 90, e.g.
  • the metal plate 90 is fully encapsulated in the plate element 41.
  • the metal plate 90 is encapsulated by a first surface material 93 and a second surface material 92 and the circumferential edge 44.
  • Figs. 14A and 14B show that the plate element 41 is fully made of a metal plate 90.
  • the metal plate weighs approximately 20 grams.
  • the metal plate may weigh from 5-40 grams.
  • Figs. 15A, 15B and 15C show that a metal plate 90 is fully encapsulated in the plate element 41. Furthermore it is seen that the circumferential edge 44 comprises a number of recesses 100. As best seen on Fig. 15C, the recesses 100 are continued along the diameter of the plate element 41. The recesses may be positioned in many ways but are positioned perpendicularly to each other in this embodiment.
  • Figs. 16A and 16B show that the metal plate 90 is partly visible, similar to the embodiment shown in Fig. 12.
  • Fig. 17 shows that the plate element 41 comprises three projections 101.
  • the projections serve to keep a small distance to the container in which the plate element 41, i.e. as a part of the full retrieval piston element 4, is inserted (see e.g. Fig. 1).
  • the projections 101 substantially project from the circumferential edge 44 of the plate element 41.
  • Figs. 18A and 18B show that the plate element 41 comprises three projections 101.
  • the projections serve to keep a small distance to the container in which the plate element 41, i.e. as a part of the full retrieval piston element 4, is inserted (see e.g. Fig. 1).
  • the female part 8 comprises four flexible fingers 88.
  • the projections 101 substantially project from the circumferential edge 44 of the plate element 41.
  • Fig. 19 shows a male part 7 comprising indicator line 105 for indicating the amount of e.g. coffee to be filled into the press pot.
  • the indicator 105 is shown as a recess but could also be a positive projection.
  • Fig. 20 shows an enlarged cross sectional view of the male part 7 in engagement with the flexible fingers 88 of the female part. It is seen that the distance d2 is the overlap from the tip of the projecting part 106 of flexible fingers 88 of the female part 8 and the tip of the projecting part 107 of the male part 7. Likewise, this is shown in Fig. 4 where the protrusion 83 of the female part 84 causes the female part 8 and the male part 7 to interlockingly engage. Shown in Fig. 4 the mating grove 81 of the male part 7 is an annular area of the male part 7 having decreased diameter. Said decreased diameter is in Fig. 20 located between the projecting parts 107 and provides an annular or circumferential exterior recess like the one in Fig.
  • the projecting part 106 of the finger 88 of the female part 8 is similar to the protrusion 83 of Fig. 4.
  • the distance d2 that the flexible fingers 88 (wall parts) should expand in order to pass the protrusion/projection 107 determines how easily the user may feel the "snaps" and thus be able to determine that the locking engagement is achieved.
  • the larger the d2 distance the better the user feels that the locking engagement is achieved.
  • the more distinct the saw-toothed outline of the projections of the male part 7, compared to a more sinusoidal outline the easier the snap function is felt. This is simply because the relaxation of the flexible fingers from the expanded state, i.e. when the projections 107, 106 are aligned, will happen faster in relation to the movement along the longitudinal axis.
  • the configuration concerning the position and encapsulation of the metal plate 90 may be interchanged between the different embodiments.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

La présente invention concerne une cafetière à piston (1) pour infuser des boissons, comprenant un récipient (9) pour contenir un fluide, et un dispositif plongeur (12) à introduire dans le récipient (9), le dispositif plongeur (12) comprenant un élément filtre de piston (3) pour filtrer une substance (11) suspendue dans le fluide, et une tige de piston (5) s'étendant de l'élément filtre de piston (3) et conçue pour déplacer l'élément filtre de piston (3) à travers le fluide, le dispositif plongeur (12) comprenant en outre un élément piston d'extraction (4) pour éliminer du récipient (9) la substance (11) filtrée par le fluide, un mécanisme de raccordement (6) pour relier de façon détachable l'élément piston d'extraction (4) à la tige de piston (5), grâce à quoi l'élément piston d'extraction (4) peut être introduit indépendamment dans le récipient (9) et relié ensuite à la tige de piston (5) pour extraire l'élément piston d'extraction (4) du récipient (9), et le mécanisme de raccordement (6) étant placé entre l'élément filtre de piston (3) et l'élément piston d'extraction (4), et le mécanisme de raccordement (6) étant un mécanisme à réglage serré comprenant une partie mâle (7) conçue pour venir en prise avec une partie femelle d'accouplement (8) pour relier de façon détachable l'élément piston d'extraction (4) à la tige de piston (5). En outre, la présente invention concerne un dispositif plongeur (12) à introduire dans un récipient (9).
EP14719803.0A 2013-04-29 2014-04-29 Cafetière a piston Withdrawn EP2991527A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14719803.0A EP2991527A1 (fr) 2013-04-29 2014-04-29 Cafetière a piston

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13165831.2A EP2798985A1 (fr) 2013-04-29 2013-04-29 Pot de presse
EP14719803.0A EP2991527A1 (fr) 2013-04-29 2014-04-29 Cafetière a piston
PCT/EP2014/058742 WO2014177573A1 (fr) 2013-04-29 2014-04-29 Cafetière a piston

Publications (1)

Publication Number Publication Date
EP2991527A1 true EP2991527A1 (fr) 2016-03-09

Family

ID=48236693

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13165831.2A Withdrawn EP2798985A1 (fr) 2013-04-29 2013-04-29 Pot de presse
EP14719803.0A Withdrawn EP2991527A1 (fr) 2013-04-29 2014-04-29 Cafetière a piston

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP13165831.2A Withdrawn EP2798985A1 (fr) 2013-04-29 2013-04-29 Pot de presse

Country Status (3)

Country Link
EP (2) EP2798985A1 (fr)
AU (1) AU2014261502A1 (fr)
WO (1) WO2014177573A1 (fr)

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
US9492027B2 (en) * 2014-01-10 2016-11-15 Made Simpli, Llc Infusion process apparatus and method
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DE102015119406A1 (de) * 2015-11-11 2017-05-11 Pi-Design Ag Auffangbehälter zum Auffangen von unlöslichem Material, welches bei der Zubereitung von Getränken verwendet wird, sowie Aufgussvorrichtung mit einem derartigen Auffangbehälter
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EP2798985A1 (fr) 2014-11-05
AU2014261502A1 (en) 2015-10-08

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