A system for the preparation of beverages including capsules (C) with a cup-shaped body (1) having an annular lateral wall (6) which tapers from a mouth opening (2) towards a bottom wall (5). These capsules (C) are of at least a first type and a second type, and have identical bottom walls (5) and d
A system for the preparation of beverages including capsules (C) with a cup-shaped body (1) having an annular lateral wall (6) which tapers from a mouth opening (2) towards a bottom wall (5). These capsules (C) are of at least a first type and a second type, and have identical bottom walls (5) and different axial lengths (h1, h2, h3). An infusion assembly (10) has a variable-volume infusion chamber (20), having an introduction opening (20a), an end delimitation part (16a) having a shape corresponding to that of the bottom wall (5) of the capsules (C), and with a lateral delimitation structure (13a, 13b; 14) which includes a static portion (13a, 13b) and which extends between said introduction opening (20a) and the end delimitation part (16a). The latter is movable away from the introduction opening (20a).
대표청구항▼
1. System for the preparation of beverages, comprising capsules (C) having a cup-shaped body (1) with a mouth opening (2) closed by a cover (4), a bottom wall (5) and an annular side wall (6) which extends between the mouth opening (2) and the bottom wall (5) tapering towards the bottom wall (5); sa
1. System for the preparation of beverages, comprising capsules (C) having a cup-shaped body (1) with a mouth opening (2) closed by a cover (4), a bottom wall (5) and an annular side wall (6) which extends between the mouth opening (2) and the bottom wall (5) tapering towards the bottom wall (5); said capsules (C) being of at least first and second types, having essentially equally-sized bottom walls (5) and different axial lengths (h1, h2, h3); and an infusion assembly (10) wherein there is defined a variable-volume infusion chamber (20), having an introduction opening (20a), an end delimitation part (16a) having shape and dimensions corresponding to those of the bottom wall (5) of said capsules (C), and with a lateral delimitation structure (13a, 13b; 14) which comprises a static portion (13a, 13b) and which extends between said introduction opening (20a) and the end delimitation part (16a);the end delimitation part (16a) being movable inside the lateral delimitation structure (13a, 13b; 14) away from the introduction opening (20a);the arrangement being such that one of said capsules (C), introduced into the infusion chamber (20), is capable of causing a movement of the end delimitation part (16a) away from the introduction opening (20a), such that the infusion chamber (20) assumes a configuration and dimensions corresponding to those of the type of capsule (C) introduced thereinto;the system being characterized in thatthe lateral delimitation structure (13a, 13b; 14) of the infusion chamber (20) comprises further a movable portion (14) cooperating with said static portion (13a, 13b), said movable portion (14) being movable along a predetermined direction, transversely to the direction of introduction of the capsules (C) into said chamber (20), away from the fixed portion (13a, 13b), against the action of associated first opposing means (15), so as to increase the cross-section of the introduction opening (20a) and, correspondingly, the volume of the infusion chamber (20);the end delimitation part (16, 16a) of the infusion chamber (20), being coupled to said movable portion (14), is movable against the action of associated second contrast means (19), such that a displacement of the end delimitation part (16, 16a) away from the introduction opening (20a) causes a corresponding movement of the movable portion (14) away from the fixed portion (13a, 13b) of the lateral delimitation structure (13a, 13b; 14). 2. System according to claim 1, wherein the capsules (C) of said types have a mouth opening (2) with an essentially rectangular shape, with a first pair of opposite sides (2b) which are identical in the different types of capsules, and a second pair of opposite sides (2a) having different lengths. 3. System according to claim 1, wherein the annular lateral wall (6) of the capsules (C) of said types includes at least one lateral wall (6b) inclined with respect to the axis (Z-Z) of the capsule (C), the inclination of said at least one lateral wall (6b) being essentially the same in the different types of capsules. 4. System according to claim 1, wherein the infusion assembly (10) comprises a piercing and injecting head (12) adapted to be coupled to a capsule-holding assembly (11) wherein said chamber (20) is defined, for piercing the cover (4) of a capsule (C) positioned in said chamber (20) and injecting a flow of fluid into said capsule (C) for producing the beverage; said piercing and injecting head comprising a plurality of piercing and injecting means (33; 33+43; 33+43+53), each designed for operation with a corresponding type of capsule (C); the capsules (C) of each type having respective selective activation means (3, 3a) capable, when said head (12) is coupled to the capsule-holding assembly (11), of selectively activating the corresponding piercing and injecting means (33; 33+43; 33+43+53). 5. System according to claim 4, wherein the piercing and injecting head (12) has a conduit (31) for supplying hot water and/or steam, selectively connectable, through a plurality of selectively activatable valve devices (33; 44; 54), to the piercing and injecting means (33; 33+43; 33+43+53) associated with each type of capsule; the capsules (C) of each type having respective formations (3; 3a) adapted to selectively activate the corresponding valve devices (33; 44; 54) of said head (12).
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이 특허에 인용된 특허 (3)
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