BEVERAGE PREPARATION SYSTEMS AND PROCESSES, INCLUDING PORTION HOLDER WITH ENHANCED SINGLE PORTION

Abstract

The present invention refers to systems and process associated with beverage preparation based upon the extraction of a single portion (1) of a pre-measured quantity of precursor substance in a brewing apparatus (4), whereby said single portion (1) presents a compostable confinement (2) and can be collected inside of a portion holder (3) that is adapted so that can be retained inside a cavity of said brewing apparatus (4). In particular, the present invention relates addresses the problem of ensuring effective and reliable operation of a single portion (1) in the portion holder (3).

Claims

1. A beverage preparation system comprising: a single portion comprising a confinement for collecting a beverage precursor substance; a portion holder comprising a container part with a sidewall and a base wall, and a lid part with a flow-conducting wall presenting flow passageways, and jointly confining a collection space extending at least downstream of the peripheral interface region between container and lid parts, said container part being adapted so that can be retained inside a portion receiving part of an extraction device that can be manually held and operated in a draw-like manner into an operating position engaged with a flow provision part of said extraction device, said lid part being peripherally hinged to the container part by lid connection means so that can be operated to a closed position at which the single portion is confined inside the cavity space, and wherein the single portion presents volumetric shape and dimension that are similar to the volumetric shape and dimension of the collection space provided by container and lid parts such that the exterior surface thereof is in contact with the interior surface provided by said container and lid parts, optionally also with a flow-dispensing part provided on the base wall, whereby the single portion presents a rim wall portion arranged at a relative level such that the single portion can sit therewith on a support step adapted as container sealing portion of the container part.

2. The system according to claim 1, wherein the single portion presents a confinement that encloses an edible substance collection space presenting volumetric shape and volumetric dimension that are similar to the volumetric shape and dimension of the collection space provided by container and lid parts, whereby at least the downstream-oriented portion of the confinement is preferentially provided in a flow permeable material and is otherwise devoid of flow outlet means or otherwise adapted so that can be ruptured to provide flow outlets, and in that the single portion presents a confinement provided in a compostable material, such as a cellulosic-based material, or similar.

3. The system according to claim 1, wherein the single portion presents a confinement that encloses an edible substance collection space presenting similar volumetric shape and similar volumetric dimension to the volumetric shape and dimension of the collection space provided by container and lid parts such that the top region thereof is in contact with the interior surface of the flow-conducting wall of the lid part, and whereby part of the volume of the single portion occupied by the edible substance preferentially extends within the volume confined by the lid part upstream of container sealing portion.

4. The system according to claim 1, wherein the single portion is configured such that, inside the closed portion holder and in a non-flow condition, the top wall of the confinement can be pressed downwards by the interior surface of the flow conducting wall.

5. The system according to claim 1, wherein the single portion presents a confinement with sidewalls extending in at least one of a frusto-conic and a convex shape downstream of the rim wall portion, and top and bottom walls extending in a planar shape transversally to the prevailing flow direction at different distances relative to the rim wall portion.

6. The system according to claim 1, wherein the single portion presents a confinement with sidewalls in a permeable material extending downstream of a ring-like element, at a different inclination and extension in respect thereof, such that the upstream-oriented surface, or top wall of said single portion, presents a smaller area than the downstream-oriented surface, or base wall, thereof.

7. The system according to claim 1, wherein the single portion presents a confinement including a ring-like element that provides a peripheral rim coupling two parts of confinement of similar cross-section and preferentially similar confinement material, whereby an upstream-oriented confinement part extends upstream less than a downstream-oriented confinement part extends downstream in respect of said ring-like element.

8. The system according to claim 1, wherein the flow-conducting wall is configured such that the cavity space confined by the portion holder extends to the vicinity of the upstream feed-edge thereof while providing an upstream-oriented free space extending peripherally in respect of the flow-conducting wall at a distance downstream of the upstream free-edge of the lid part.

9. The system according to claim 2, wherein the flow-conducting wall presents a plurality of flow passageways, for example arranged in a matrix-like pattern, extending in a direction similar to the prevailing flow direction and provided on different portions of the shape, preferentially downstream-oriented convex, of the flow-conduction wall.

10. The system according to claim 1, wherein the portion holder presents beverage flow dispensing means on the bottom region of the container part, provided such that the exterior surface of said single portion is in direct contact with the flow conducting wall of the lid part on the upstream side, and with said beverage flow dispensing means siting on the base wall of the container part on the downstream side, upstream of and in flow communication with a beverage discharge outlet arranged on said base wall, and in that the beverage flow dispensing means, preferentially provided as a disk-like single piece, are adapted so that can be retained on, preferentially by means of nut-groove peripheral engagement with, the base wall of the container part, whereby said beverage flow dispensing means preferentially present projections extending upstream from a base portion and configured with a non-puncturing and non-perforating shape, for example with a spherical-like shape with a circular cross-section profile, and said flow dispensing means further present at least one, preferentially a plurality of, flow passageways configured as holes on the base portion of the flow dispensing means.

11. The system according to claim 1, wherein the container part presents a container sealing portion for providing liquid sealing of the portion holder in the closed position, said container sealing portion configured as an inward-extending peripheral step providing an upstream-oriented support surface for a rim region of the single portion and also a support surface for the downstream-oriented peripheral free-edge of the lid part, in particular configured as a lid sealing portion, such that there is provided a sealing engagement of said container and lid sealing portions in case the portion holder is closed, whereby said container sealing portion is preferentially provided on a elastically deformable material.

12. The system according to claim 1, wherein the portion holder presents retention means with different configuration and material properties from the remaining sidewall of container portion, adapted so that said container portion can be retained in pressurized fitting inside said portion receiving part.

13. The system according to claim 1, wherein said system further includes a beverage preparation apparatus comprising said extraction device and pressurized flow means upstream thereof so that a pressurized fluid can flow in a prevailing direction through said extraction device, portion holder and single portion inside thereof.

Description

LIST OF FIGURES

[0050] The present invention shall be hereinafter described in greater detailed with support of a description of preferred embodiments of main components and respective drawings.

[0051] The Figures Show:

[0052] FIG. 1: side-cut view diagram of a system and first step of a process according to the present invention;

[0053] FIG. 2: side-cut view diagram of a system and second and third steps of a process according to the present invention, including provision of a portion holder (3) and dropping a single portion (1) inside thereof;

[0054] FIG. 3: side-cut view diagram of a system and fourth step of a process according to the present invention, including introducing the portion receiving part (41) containing the portion holder (3) into the flow provision part (42) of a brewing device (4);

[0055] FIG. 4: side-cut view diagram of a system and third step of a process according to the present invention, including provision of a portion holder (3);

[0056] FIG. 5: side view of an embodiment of an open portion holder (3) in a system according to the invention;

[0057] FIG. 6: perspective top view of open portion holder (3);

[0058] FIG. 7: top view of open portion holder (3);

[0059] FIG. 8: detail view of the lid connection means (6) between container (31) and lid (32) portions of the portion holder (3);

[0060] FIG. 9: perspective side-cut view of open portion holder (3);

[0061] FIG. 10: side-cut views of successive moments of introduction of a portion holder (3) in a extraction device (4) of an apparatus (5) in a system according to the invention;

[0062] FIG. 11: perspective side-cut view of portion holder (3) at an almost closed position;

[0063] FIG. 12: detail side-cut view of the lid connection means (6) of container (31) and lid portions (32);

[0064] FIG. 13: perspective side-cut view of portion holder (3) at a closed position;

[0065] FIG. 14: side-cut view of closed portion holder (3);

[0066] FIG. 15: perspective top view of closed portion holder (3);

[0067] FIG. 16: side view of first embodiment of portion holder (3);

[0068] FIG. 17: side view of second embodiment of portion holder (3);

[0069] FIG. 18: side view of third embodiment of portion holder (3);

[0070] FIG. 19: top view of closed portion holder (3);

[0071] FIG. 20: perspective top view of a portion holder (3) in a non-closed position and containing a single portion (1);

[0072] FIG. 21: side-cut view of a portion holder (3) in a non-closed position and containing a single portion (1);

[0073] FIG. 22: side-cut view of a portion holder (3) in a closed position and containing a single portion (1);

[0074] FIG. 23: side-cut view of a portion holder (3) in a non-closed position and containing a single portion (1), inside of a portion receiving part (41) of extraction device;

[0075] FIG. 24: side-cut view of a portion holder (3) in a closed position and containing a single portion (1), inside of a portion receiving part (41) of extraction device;

[0076] FIG. 25: top view of a second embodiment of a portion holder (3) in an open position;

[0077] FIG. 26: bottom view a second embodiment of a portion holder (3) in an open position;

[0078] FIG. 27: perspective side-cut view of the second embodiment of portion holder (3) and second embodiment of single portion (1);

[0079] FIG. 28: side-cut view of the second embodiment of portion holder (3) and second embodiment of single portion (1).

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION

[0080] The present invention shall be described based upon the general example of a beverage preparation system adapted for operating with single portions (1), such as capsules or pods, in preparing espresso-like coffee, soluble coffee and similar aromatic beverages.

[0081] The single portions (1) present a confinement (2) adapted for confining a pre-measured quantity of a beverage precursor substance, such as roast and ground coffee, whereby this confinement (2) is preferentially provided in a compostable material, such as a cellulosic-based material, or similar, and does not include other non-compostable materials, thereby advantageously eliminating environmental waste disposal impacts.

[0082] Besides of said single portions (1), such system includes an apparatus (5) with an extraction device (4) adapted so that can collect said single portion (1), when at an open position, and enable exposure thereof to an upstream pressurized fluid flow, usually at a fluid pressure above 2 bar, preferentially above 8 bar, and at a fluid temperature above 80° C., preferentially above 88° C., when in a closed and operating position, as known in prior art.

[0083] Moreover, the general example relates to systems whereby the beverage preparation apparatus (3) includes an extraction device (4) having a portion receiving part (41) provided as stand-alone part, for example configured in a general porta-filter design, presenting a cavity adapted so that can receive a single portion (1) and can be manually inserted for example in a generally draw-like arrangement, into a respective preferentially form fitted flow provision part (42), thereby reaching an operative position thereof.

[0084] As represented in FIG. 1, an embodiment of the system can include a first type of single portion (1′) and a beverage preparation apparatus (5) comprising an extraction device (4) having a portion receiving part (41) and a flow provision part (42) that provides pressurized flow upstream of the single portion (1′), for example a plastic capsule, and collection and/or discharge of resulting beverage downstream thereof.

[0085] The beverage preparation apparatus (5) can further comprise a flow pressurizing device, such as a hydraulic pump, and a flow heating device, such as a thermoblock. Other aspects of such beverage preparation apparatus (5) are known in prior art such that one herewith abdicated of further details thereof.

[0086] In a first step of a process according to the invention, there is provided a portion holder (3) comprising a container (31) hinged connected to a lid portion (32), and adapted so that can receive a single portion (1) different from said first single portion (1′) when said lid portion (32) is at an open position, and confine it in liquid sealing manner in case at a closed position.

[0087] A process according to the present invention is further represented in successive steps in FIGS. 2 to 4.

[0088] In a second step, whereby a portion receiving part (41) is outside with the beverage preparation apparatus (5), un-engaged with the flow provision part (42), a portion holder (3) is inserted into the portion receiving part (41), such that a lid (32) can be operated between open and closed positions. According to an advantageous aspect, the portion holder (3) is inserted in a pressurized fitting manner at least along the lateral portion thereof, such that it is retained inside the portion receiving part (41) by retention means (7) provided on the container portion (31) and does not fall out of it even in case the latter is eventually oriented downwards.

[0089] In a third step, a second type of single portion (1) is inserted into the container portion (31) of the portion holder, preferentially by means of manually dropping it inside thereof.

[0090] In a fourth step, the portion receiving part (41) is manually inserted into the flow provision part (42), for example in a drawer-like arrangement, such that the receiving part (41) reaches a closed position, and the injection of upstream pressurized flow can be started. In particular, the hinged connection of the lid portion (32) is adapted so that is downwards-pushed by the flow provision part (42) as it gets driven inside thereof and retained in sealed engagement with the container portion (31) whilst inside the flow provision part (42).

[0091] The process can further include removing the portion receiving part (41) out of engagement in the flow provision part (42), whereby the hinged connection of the lid portion (32) is adapted so that only raises partially whilst being removed from the downwards-pushing engagement by the flow provision part (41).

[0092] The process can further include turning the portion receiving part (41) downwards such that the single portion (1) falls driven by the gravity force out of the container portion (31), but the portion holder (3) further remains retained inside the portion receiving part (41). This feature advantageously enhances the convenience of use of the portion holder (3).

[0093] FIGS. 5 to 8 represent a preferred embodiment of a portion holder (3) according to the present invention, comprising a container portion (31) with a rotationally symmetric sidewall (311) and base wall (312) defining a cavity space, and a lid portion (32) peripherally hinged to the container portion (31) by means of lid connection means (6) so that can be operated into a closed position whereby the single portion (1) can be confined inside the cavity space.

[0094] The container part (31) is adapted so that can be retained inside a portion receiving part (41) of an extraction device (4) that can be manually held and operated in a draw-like manner into an operating position engaged with a flow provision part (42) of said extraction device (4) that can present the general features described in association with previous figures.

[0095] As depicted, the portion holder (3) comprises a container part (31) with a sidewall (311) and a base wall (312), and a lid part (32) with a flow-conducting wall (321) extending transversally to the prevailing flow direction and presenting flow passageways (33) and a collar-like flow-confining wall (322) extending laterally peripherally of the flow-conducting wall (321), and jointly confining a collection space extending upstream and downstream of the peripheral interface region between container and lid parts (31, 32).

[0096] As referred above, there are portion holders of this type known in the prior art, presenting a hinged connection of the container and lid parts. Given the repetitive and numerous actuation of said hinged connection, this type of connection can be prone to mechanical wear and tear issues, for example in the case of using spring-driven connections, or to ergonomic constrains, such as in the case of lever-like digital actuation supports.

[0097] According to a notorious feature of the portion holder (3) according to the present invention, the lid part (32) is peripherally hinged connected to the container part (31) by lid connection means (6) that include a material connection (61) of the container part (31) with the lid part (32), whereby said lid connection means (6) are configured such that can be provided by injection moulding of the container and lid parts (31, 32) such that these can be produced as a single piece.

[0098] This advantageously simplifies the hinged connection of the lid and container parts (31, 32), providing a long lasting reliable and simple connection.

[0099] It is further advantageous when the lid connection means (6) include a material connection (61) provided in the form of an elastically bendable element, preferentially in a band shape or similar, that extends continuously from the upstream region of the upstream sidewall (311) of container part (31) to the lid part (32), whereby the material connection (61) preferentially includes an elastic material band that is provided such that exerts an elastic force on the lid part (32) upwards in respect of the container part (31), such that the lid part (32) tends towards the open position.

[0100] As can be best seen in FIGS. 6 and 8, the lid connection means (6) can include a connection retention arrangement (62) adapted so that can assist the retention of the lid part (32) at the closed position on the container part (31).

[0101] The connection retention arrangement (62) preferentially includes a male-female arrangement (621, 622) in opposing edges of, and arranged sideways in respect of, the material connection (61) and adapted so as to provide a first hard-point retention of the lid part (31) on the container part (31).

[0102] The male-female arrangement (621, 622) is preferentially provided on respective peripheral support non-curved portions of the container and lid parts (31, 32) and corresponding to a portion of, and to a projection on, the upstream free-edge region, respectively.

[0103] The lid connection means (6) and the holder retention means (7) are provided in a material with similar elastic properties, preferentially in a same material provided that extends continuously from the retention means (7) to the lid connection means (6),

[0104] The lid connection means (6) and the holder retention means (7) can be provided in a unique part, or piece, together with the container and lid parts (31, 32) by means of bi-material injection moulding.

[0105] The portion holder (3) can further include flow dispensing means (36), preferentially provided as a disk-like single piece, adapted so that can be retained on, preferentially by means of nut-groove peripheral engagement with, the base wall (312) of the container part (31), whereby said flow dispensing means (36) present projections (361) extending upstream from a base portion and configured with a non-puncturing and non-perforating shape, for example with a spherical-like shape with a circular cross-section profile, and further present at least one, preferentially a plurality of, flow passageways (362) configured as holes on the base portion of the flow dispensing means (36).

[0106] FIGS. 9 to 14 show several cut views of the embodiment of portion holder (3) in a system according to the present invention.

[0107] The Applicant has tested several embodiments of a portion holder of the type of the present invention, and determined that the retention thereof inside of the portion receiving part (41) of extraction device (4), should be very advantageous in terms of general ergonomic use thereof.

[0108] According to a notorious feature, the portion holder (3) according to the present invention presents retention means (7) presenting a different configuration and different material properties from the configuration and material properties of the sidewall (311) of the container part (31), and adapted so that said container portion (31) can be retained in pressurized fitting inside said portion receiving part (41).

[0109] In particular, the retention means (7) can be provided in a different material or in a different material composition as the rest of said container part (31).

[0110] Moreover, the retention means (7) are provided in an elastically deformable material, for example a rubber-like synthetic material, whereas the container part (31) can be provided in a substantially rigid material.

[0111] This feature advantageously provides for a more effective retention of the container part (31), because the retention means (7) thus provide for an enhanced pressurized fitting of the portion holder (3) inside the cavity of the portion receiving part (41) of the extraction device (4).

[0112] It is preferred when the container part (31) supports retention means (7) provided in a tubular shape around at least part, preferentially at least most part, more preferentially all of the sidewall (311) such that can be pressed under peripheral strain inside said portion receiving part (41).

[0113] Moreover, the retention means (7) can present at least one, preferentially several projections extending outward in respect of at least most of the remaining sidewall (311) of container part (31), preferentially all of the remaining sidewall (311) that sits inside of the portion receiving part (41).

[0114] Moreover, at least one of, preferentially both, the retention means (7) and the container part (31) of portion holder (3) are provided in a different material or in a different material composition as the portion receiving part (41).

[0115] The retention means (7) can present a non-smooth, preferentially grooved, exterior surface presenting at least one of: a rugosity and a pattern, with projections extending outwards in at least one of: a transversal and parallel direction in respect of the prevailing flow direction, configured so as to generate a material pressure with the corresponding interior surface of said portion receiving part (41) transversal to said prevailing flow direction, whereby the retention means (7) are preferentially provided in a material at least partially elastically deformable.

[0116] The retention means (7) can be provided as a plurality of outwards extending projections arranged successively, for example in rows, at least from the vicinity of the peripheral interface region between container and lid parts (31, 32) to the base wall (312).

[0117] In particular, the retention means (7) can be provided as outwards extending projections presenting a cross-section profile narrowing from the base towards the free-edge thereof.

[0118] As further represented in these drawings, the portion holder (3) comprises a container part (31) with a sidewall (311) that presents an upstream sidewall portion (3111) and a downstream sidewall portion (3112) that is recessed inwards relative to the upstream sidewall portion (3111), and preferentially also relative to an outward extending portion of the base wall (32), and the retention means (7) are provided on a laterally-oriented indent associated with said downstream sidewall portion (3112), such that the retention means (7) extend inwards and outwards in respect of the upstream sidewall portion (3111).

[0119] According to another notorious feature of the portion holder (3), the retention means (7) are provided as an injection moulded part that extends through a perimeter transition region between upstream and downstream sidewall portions (3111, 3112) thereby forming at least one of: [0120] a container sealing portion (34) extending inwards along the interior perimeter and that provides sitting support, in the peripheral interface region between the container and lid parts (31, 32), for a rim portion of the single portion (1) and to a lid sealing portion (35), and [0121] a material connection (61) of lid connection means (6) that provide the hinged connection of the lid part (32) with the container part (31) at a peripheral region thereof.

[0122] This feature advantageously provides for a multiple use and benefit of use, of an elastically deformable material in the portion holder (3), not only in as retention means (7) thereof, but also as at least part of the liquid sealing means and hinged connection means.

[0123] As should also be known to the expert in the field, this type of systems, including both extraction devices and single portions, configured for being impinged by pressurized flows, can present liquid sealing issues.

[0124] According to another notorious feature of the portion holder (3) according to the present invention, the container part (31) presents a container sealing portion (34) for providing liquid sealing of the portion holder (3) in the closed position, said container sealing portion (34) configured as an inward-extending peripheral step providing an upstream-oriented support surface for a rim region of single portion (1) and also a support surface for the downstream-oriented peripheral free-edge of the lid part (32), in particular configured as a lid sealing portion (35), such that there is provided a sealing engagement of said container and lid sealing portions (34, 35) in case the portion holder (3) is in the closed position.

[0125] This feature advantageously provides for effective and reliable liquid sealing of the interface region between container and lid parts (31, 32) of the portion holder (3).

[0126] In particular, the container part (31) can present a container sealing portion (34) configured as an inward-extending peripheral step provided in an elastically deformable material, whereby said container sealing portion (34) is provided upstream of the downstream sidewall portion (3112) and inwards of the upstream sidewall portion (3111).

[0127] The container sealing portion (34) and the holder retention means (7) can be provided in a material with similar elastic properties, preferentially in a same material or a material with similar composition, that extends continuously from the retention means (7) to the container sealing portion (34), whereby the lid connection means (6) and the holder retention means (7) are provided in a single part or piece as the container and lid parts (31, 32) by means of bi-material injection moulding.

[0128] This again provides for the benefits of using an elastically deformable material together with a different material, in particular a rigid material, in the portion holder (3).

[0129] The lid part (32) can present a lid sealing portion (35) provided on the downstream-oriented peripheral free-edge of the lid part (32), whereby said lid sealing portion (35) presents a downstream-oriented peripheral nut, for example in a V-like cross-section shape, or similar, and whereby said lid sealing portion (35) is configured to sit under pressure on the container sealing portion (34) thereby providing a sealing engagement of said container and lid sealing portion (34, 35) in case the portion holder (3) is closed.

[0130] The container part (31) can support a container sealing portion (34) provided in an elastically deformable material, preferentially a material different from the container part (31), and

[0131] The lid part (32) can present a lid sealing portion (35) provided in the same material as the remaining lid part (32), preferentially in a non-elastic rigid material.

[0132] The portion holder (3) can comprise container and lid parts (31, 32) with respective container and lid sealing portions (34, 35) that are provided in mutually opposing regions, in particular in a downstream-oriented base region and in a upstream-oriented inwards extending step, respectively, and adapted such that the lid sealing portion (35) sits under closure-driving pressure on the container sealing portion (34) along a continuous peripheral extension in the closed position of the portion holder (3), whereby said closure-driving pressure can be provided by at least one of: [0133] pressurized engagement of the top region of the lid part (32) with the flow provision part (42) of extraction device (4); [0134] pressurized engagement of lid retention means (324) corresponding to a closed position of the portion holder (3).

[0135] The expert in the field is familiar with the relevance of upstream flow distribution in respect of the upstream-oriented surface of the edible substance inside a single portion (1), in particular if the flow-feeding part (42) of the extraction device (4) presents a single inlet of pressurized flow.

[0136] According to another notorious feature, the portion holder (3) comprises a lid part (32) that presents a flow-conducting wall (321) in a generally downstream-oriented convex shape, for example in a frusto-conic shape, configured such that the cavity space confined by the portion holder (3) extends to the vicinity of the upstream feed-edge thereof while providing an upstream-oriented free space extending peripherally in respect of the flow-conducting wall (321) at a distance downstream of the upstream free-edge of the lid part (32). In particular, said flow-conducting wall (321) presents a plurality of flow passageways (33), for example arranged in a matrix-like pattern, extending in a direction similar to the prevailing flow direction and provided on different portions of the downstream-oriented convex shape of the flow-conduction wall (321), at different levels downstream relative to the upstream free-edge of the lid part (32).

[0137] This feature advantageously provides for a better flow distribution upstream of the single portion (1) and therefore, enhanced extraction efficiency of the edible substance, such as for example roasted ground coffee or soluble coffee, or similar beverage precursor substances.

[0138] Moreover, the portion holder (3) can comprise a lid part (32) that presents a collar-like flow-confining wall (322) extending laterally peripherally of a flow-conducting wall (321) and extending upstream from a lid sit region (323) common to the flow-conducting wall (321), whereby the exterior perimeter of the flow-conducting wall (321) corresponds to at least 80%, preferentially at least 85% of the interior perimeter of the flow-confining wall (322).

[0139] The flow-confining wall (322) can extend upstream configuring an upstream free-edge of the lid part (32) such that, in case the portion holder (3) is closed, the upstream free edge of the flow-confining wall (322) can extend at a level that is similar to, preferentially higher by a tolerance than, the peripheral edge of the container part (31).

[0140] According to another notorious feature, the portion holder (3) can comprise a lid part (32) that presents a collar-like flow-confining wall (322) laterally extending along the periphery region of a flow-conducting wall (321), said lid part (32) including or supporting at least one of, preferentially all of: [0141] lid connection means (6; 61, 62) arranged at a first peripheral region thereof and providing swivelling connection with the container part (31); [0142] lid retention means (324) arranged on a second peripheral region thereof, preferentially opposite to the first peripheral region; [0143] lid sealing portion (35) extending along a downstream-oriented peripheral edge common to the flow-conducting wall (321).

[0144] This arrangement advantageously provides a simple overall construction of the portion holder (3).

[0145] The Applicant has tested several possible portion holders in different extraction devices (4), and thereby learned that there is a risk to the user resulting from an unconstrained removal of the portion holder from the extraction device (4), after termination of the pressurized flow injection associated with the beverage extraction, whereby uncontrolled hydraulic pressure-driven opening of the portion holder and unintended spills of hot water may occur.

[0146] In this regard, according to another notorious feature of the present invention, the portion holder (3) comprises container and lid parts (31, 32) presenting lid retention means (314, 324) configured so as to provide a user actionable mechanical retention of the lid part (32) on the container part (31), whereby said lid retention means (314, 324) are not arranged next to the hinged connection of the lid and container parts (31, 32).

[0147] This feature advantageously provides for reliably securing the lid part (32) to the container part (31), by means of simple user-actionable mechanical arrangement, in particular of a hard-point type, or similar. Moreover, said lid retention means (314, 324) provide an effective actuation of the container and lid sealing means (34, 35).

[0148] Moreover, the portion holder (3) comprises container and lid parts (31, 32) presenting lid retention means (314, 324) configured so as to provide mechanical retention of the lid part (32) on the container part (31) by means of the user applying pressure on a peripheral portion of the top region of the lid part (32), enough to drive a lid retention portion (324) past a container retention portion (314).

[0149] Moreover, the portion holder (3) comprises container and lid parts (31, 32) presenting lid retention means (314, 324) configured so as to provide mechanical retention of the lid part (32) on the container part (31) even in case the portion holder (3) is not engaged by the flow provision part (42) of the brewing device, preferentially also requiring the user to apply pressure so as to release the retention of the lid part (32) from the container part (31).

[0150] Moreover, the portion holder (3) comprises container and lid parts (31, 32) presenting lid retention means (314, 324) configured so as resist the upwards-acting hydraulic pressure build-up inside the confined space of the portion holder (3) associated with flow injection, whereby the lid retention means (314, 324) are preferentially configured such that can provide retention and release thereof by means of a similar gesture and pressure by the user, and preferentially providing haptic perception thereof to the user.

[0151] Moreover, the portion holder (3) presents lid retention means (314, 324) arranged opposite to connection means (6), in particular to connection retention means (621, 622) associated with the connection means (6) of the lid part (32) to the container part (31), such that there are provided mutually opposing mechanical retentions of the lid part (32) of portion holder (3), whereby said retentions are preferentially configured so that can be jointly actuated.

[0152] Moreover, the portion holder (3) presents lid retention means (314, 324) configured as a localized embossment of the internal surface of the container part (31) operationally aligned with a flattened exterior portion of the flow-confining wall (322) of the lid part (32), such that the lid part (32) can be retained in a closed position whereby a lid sealing portion (35 is pressed downwards against container sealing portion (34).

[0153] FIGS. 15 to 18 show several preferred embodiments of retention means (7) in a portion holder (3) according to the present invention.

[0154] In a preferred embodiment the retention means (7) can present a plurality of projections configured as ribs extending outwards and circumferentially around the sidewall of container part (31). Alternatively, the rib-like projections can extend along meridional alignments arranged successively around the external engaging surface of the container part (31) next to the base wall (312) thereof. The wall thickness of each retention rib can be smaller than the interstitial space in-between neighbouring ribs. It is advantageous when the projections do not extend outwards further than the broadest vertical projection of the container part (31).

[0155] In a different embodiment the retention means (7) can be configured as spherical or frusto-conical projections arranged in successive rows along the outside surface so as to be engaged by pressurized fitting when the portion holder (3) is inserted into the portion receiving part (41) of the extraction device (4).

[0156] FIG. 19 show a top view of a preferred embodiment of the lid part (32) presenting a plurality of flow passageways (33), and respective relation to the lid connection means (6).

[0157] As also referred above and depicted in previous drawings, the flow passageways (33) are provided on different concentric regions of the flow conducting part (321) of the lid part (32), each of said concentric regions extending at different inclinations relative to the prevailing flow direction, such that the upstream flow can be conducted downstream at different relative levels.

[0158] It is advantageous when the flow passageways (33) are provided in a regular matrix-like arrangement over the flow conducting part (321), including in a central region that extends substantially transversally to the prevailing flow direction and in a peripheral region that extends at a reduced angle relative to the prevailing flow direction, for example of less than 30°, preferentially less than 20°.

[0159] FIG. 20 shows the portion holder (3) at an open position with the single portion (1) inside the container part (31) thereof.

[0160] FIGS. 21 and 22 show different side-cut views of the portion holder (3) with single portion (1) inside thereof, both in open and closed positions.

[0161] According to a notorious feature, the single portion (1) presents volumetric shape and dimension that are similar to the volumetric shape and dimension of the collection space provided by container and lid parts (31, 32).

[0162] This feature advantageously provides a maximum use of the volume available inside the portion holder (3), notably for the edible substance containing single portion (1).

[0163] The single portion (1) can present a rim wall portion arranged at a relative level such that the single portion (1) can sit therewith on a support step of the container part (31) that is provided as container sealing portion (34), whereby said container sealing portion (34) is preferentially provided on a elastically deformable material, whereby the most but not all of the beverage precursor substance is provided in the downstream portion thereof.

[0164] The single portion (1) can confine an edible substance collection space presenting volumetric shape and volumetric dimension that are similar to the volumetric shape and dimension of the collection space provided by container and lid parts (31, 32), whereby there is provided a beverage flow dispensing means (36) on the bottom region of the container part (31), such that the exterior surface of said single portion (1) is in direct contact with the flow conducting wall (321) of the lid part (32) on the upstream side, and with said beverage flow dispensing means (36) siting on the base wall (312) of the container part (31) on the downstream side, upstream of and in flow communication with a beverage discharge outlet arranged on said base wall (312).

[0165] The single portion (1) can confine an edible substance collection space presenting similar volumetric shape and similar volumetric dimension to the volumetric shape and dimension of the collection space provided by container and lid parts (31, 32) such that the top region thereof is in contact with the convex-like interior surface of the flow conducting wall (321) of the lid part (32), and whereby part of the volume of the single portion (1) occupied by the edible substance extends within the volume confined by the lid part (32) upstream of container sealing portion (35).

[0166] In this embodiment, a bigger volume fraction of single portion (1) extends downstream and a smaller volume fraction extends upstream of the interface region between container and lid parts (31, 32), and such that the exterior surface thereof is in the vicinity or in contact with the interior surface provided by said container and lid parts (31, 32), optionally also with a flow-dispensing part (36) provided on the base wall (312).

[0167] The single portion (1) can be configured such that, inside the closed portion holder (3) and in a non-flow condition, can be pressed downwards by the convex-like interior surface of the flow conducting wall (321).

[0168] FIGS. 23 and 24 represent two particular moments of a process of beverage preparation according to the present invention.

[0169] FIGS. 25 to 28 represent a second embodiment of portion holder (3) whereby the flow conducting wall (321) presents a flat configuration that is non-recessed relative to the top wall of a single portion (1).

[0170] The single portion (1) in this case presents a lid part and a container part, whereby the lid part comprises a planar disk-like top wall that can be coupled coplanar with a rim region such that all edible substance can be confined below said top wall and respective rim region.

[0171] In this case the flow dispensing means (36) are provided as a circular plate, preferentially in a metallic or synthetic material, presenting a plurality of neighbouring flow discharge openings and adapted so that can be retained, for example by means of pressured fitting, on an interior-oriented portion of the base wall of portion holder (3), in flow communication with flow outlets thereof.

[0172] Lisbon, Dec. 17th 2020