Filter for capsules for making espresso coffee and capsule for making espresso coffee
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-085/804
A47J-031/06
B65D-077/20
B65D-077/24
출원번호
US-0327411
(2015-07-29)
등록번호
US-9994389
(2018-06-12)
우선권정보
IT-VR2014A0196 (2014-07-31)
국제출원번호
PCT/IB2015/055726
(2015-07-29)
국제공개번호
WO2016/016819
(2016-02-04)
발명자
/ 주소
Zaccanti, Giovanni
출원인 / 주소
CAFFITALY SYSTEM S.P.A.
대리인 / 주소
Pearne & Gordon LLP
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
A filter for capsules for making espresso coffee by passing pressurised hot water through ground coffee powder, the filter (2) being rigid or semi-rigid, bowl-shaped and comprising a first base wall (3), a first lateral wall (4), a first upper edge (5) and a plurality of passages passing through it
A filter for capsules for making espresso coffee by passing pressurised hot water through ground coffee powder, the filter (2) being rigid or semi-rigid, bowl-shaped and comprising a first base wall (3), a first lateral wall (4), a first upper edge (5) and a plurality of passages passing through it and which comprise an inlet section (10) facing towards an inner part (6) of the bowl and an outlet section (11) facing towards an outer part (7) of the bowl, at least the inlet sections (10) of the passages being made in parts of the filter (2) which are radially separated from the central axis by a distance equal to at least two thirds of the minimum radial distance of the first lateral wall (4) from the central axis; and a capsule comprising said filter (2) near to a second base wall (16) of it.
대표청구항▼
1. A filter for capsules for making espresso coffee by passing pressurised hot water through ground coffee powder, the filter (2) being rigid or semi-rigid, bowl-shaped and comprising a filter base wall (3), a filter lateral wall (4), a filter upper edge (5) and a plurality of passages passing throu
1. A filter for capsules for making espresso coffee by passing pressurised hot water through ground coffee powder, the filter (2) being rigid or semi-rigid, bowl-shaped and comprising a filter base wall (3), a filter lateral wall (4), a filter upper edge (5) and a plurality of passages passing through the filter, each passage passing through the filter comprising an inlet section (10) facing towards an inner part (6) of the bowl and an outlet section (11) facing towards an outer part (7) of the bowl, the filter (2) also having a central axis, characterised in that all passages passing through the filter are made in a peripheral zone of the filter (2), and in that at least the inlet sections (10) of all passages passing through the filter are made in parts of the filter (2) which are radially separated from the central axis by a distance equal to at least two thirds of the minimum radial distance of the filter lateral wall (4) from the central axis. 2. The filter according to claim 1, characterised in that at least the inlet sections (10) of the passages are made exclusively in the filter lateral wall (4). 3. The filter according to claim 2, characterised in that said inlet sections (10) of the passages made in the filter lateral wall (4) are positioned near to the filter base wall (3). 4. The filter according to claim 2, characterised in that the passages are through holes (9) and in that at the outer part (7) of the bowl at least several through holes (9) made in the filter lateral wall (4) also each constitute an outflow channel (13) for the espresso coffee, extending on the filter lateral wall (4) as far as the filter base wall (3), and in that the corresponding outlet sections (11) extend partly on the filter lateral wall (4) and partly on the filter base wall (3). 5. The filter according to claim 4, characterised in that the filter also comprises a plurality of spacer elements (8) which project relative to the filter base wall (3) and in that at least several of said spacer elements (8) are distributed along the periphery of the filter base wall (3) and in that at least several of said outflow channels (13) also partly extend on said spacer elements (8) distributed along the periphery of the filter base wall (3). 6. The filter according to claim 4, characterised in that at least the inlet sections (10) are elongate according to a main trajectory of extension and each have a length, measured along the main trajectory of extension, which is greater than their width, measured transversally to the main trajectory of extension. 7. The filter according to claim 2, characterised in that the filter base wall (3) has a main plane of extension and in that the filter lateral wall (4) has a height, relative to the filter base wall (3), measured perpendicularly to the main plane of extension, which is less than one third of the maximum width of the filter base wall (3) measured parallel to the main plane of extension. 8. The filter according to claim 1, characterised in that at least the inlet sections (10) of the passages are made exclusively in the filter base wall (3). 9. The filter according to claim 8, characterised in that the filter base wall (3) has a main plane of extension and in that the filter lateral wall (4) has a height, relative to the filter base wall (3), measured perpendicularly to the main plane of extension, which is less than one third of the maximum width of the filter base wall (3) measured parallel to the main plane of extension. 10. The filter according to claim 1, characterised in that at least the inlet sections (10) of the passages are made partly in the filter lateral wall (4) and partly in the filter base wall (3). 11. The filter according to claim 10, characterised in that said inlet sections (10) of the passages made in the filter lateral wall (4) are positioned near to the filter base wall (3). 12. The filter according to claim 10, characterised in that the passages are through holes (9) and in that at the outer part (7) of the bowl at least several through holes (9) made in the filter lateral wall (4) also each constitute an outflow channel (13) for the espresso coffee, extending on the filter lateral wall (4) as far as the filter base wall (3), and in that the corresponding outlet sections (11) extend partly on the filter lateral wall (4) and partly on the filter base wall (3). 13. The filter according to claim 12, characterised in that at least the inlet sections (10) are elongate according to a main trajectory of extension and each have a length, measured along the main trajectory of extension, which is greater than their width, measured transversally to the main trajectory of extension. 14. The filter according to claim 10, characterised in that the filter base wall (3) has a main plane of extension and in that the filter lateral wall (4) has a height, relative to the filter base wall (3), measured perpendicularly to the main plane of extension, which is less than one third of the maximum width of the filter base wall (3) measured parallel to the main plane of extension. 15. The filter according to claim 1, characterised in that the passages are through holes (9). 16. The filter according to claim 15, characterised in that at least the inlet sections (10) are elongate according to a main trajectory of extension and each have a length, measured along the main trajectory of extension, which is greater than their width, measured transversally to the main trajectory of extension. 17. The filter according to claim 16, characterised in that the width of said inlet sections (10) is less than 0.4 mm. 18. The filter according to claim 16, characterised in that the length of said inlet sections (10) is less than 5 mm. 19. The filter according to claim 16, characterized in that the width of said inlet sections (10) is less than 0.25 mm. 20. The filter according to claim 16, characterized in that the length of said inlet sections (10) is less than 2 mm. 21. The filter according to claim 15, characterised in that the sum of the areas of the inlet sections (10) of all of the through holes (9) is between 10 and 20 mm2. 22. The filter according to claim 15, characterised in that the filter comprises between 40 and 70 through holes (9). 23. The filter according to claim 15, characterised in that said through holes (9) have a transit cross-section which increases from the inlet section (10) to the outlet section (11). 24. The filter according to claim 1, characterised in that the filter also comprises a plurality of spacer elements (8) which project relative to the filter base wall (3). 25. The filter according to claim 1, characterised in that the filter also comprises at least one shaped portion (14) extending from the filter base wall (3) towards the inner part (6) of the bowl and which, at the outer part (7) of the bowl, forms a housing (21) for at least a piercing spike which, in use, pierces the capsule (1) to allow the espresso coffee to flow out of the capsule (1). 26. The filter according to claim 1, characterised in that the filter base wall (3) has a main plane of extension and in that the filter lateral wall (4) has a height, relative to the filter base wall (3), measured perpendicularly to the main plane of extension, which is less than one third of the maximum width of the filter base wall (3) measured parallel to the main plane of extension. 27. The filter according to claim 1, wherein the filter base wall (3) has a main plane of extension and the filter lateral wall (4) extends transversally to the main plane of extension, starting from an outer edge of the filter base wall (3) and from a side of the filter base wall (3) intended in use to be facing towards the coffee powder, the filter lateral wall (4) being radially separated from the central axis by a radial distance that has a minimum value. 28. A capsule for making espresso coffee by passing pressurised hot water through ground coffee powder, comprising: a cup-shaped main body (15) comprising a main body base wall (16), a main body lateral wall (17) and a main body upper edge (18);a lid fixed to the main body upper edge (18) for closing the cup-shaped main body (15);at least one dose of coffee powder positioned inside the main body (15); at least a filter (2) according to claim 1, positioned inside the main body (15) near to the main body base wall (16), and positioned between the coffee powder and the main body base wall (16), the filter upper edge (5) being coupled to the main body lateral wall (17); andan outflow chamber (20) for the espresso coffee made between the filter base wall (3) and the main body base wall (16) and between the filter lateral wall (4) and the main body lateral wall (17), the outlet sections (11) of the passages facing the outflow chamber (20). 29. The capsule according to claim 28, characterised in that the filter also comprises at least one shaped portion (14) extending from the filter base wall (3) towards the inner part (6) of the bowl and which, at the outer part (7) of the bowl, forms a housing (21) for at least a piercing spike which, in use, pierces the capsule (1) to allow the espresso coffee to flow out of the capsule (1) and in that the filter base wall (3) has a main plane of extension and in that said shaped portion (14) protrudes from the filter base wall (3), perpendicularly to the main plane of extension, by a distance which is less than one third of the distance between the main body base wall (16) and the lid. 30. The capsule according to claim 29, characterised in that a plane passing through the filter upper edge (5) is separated from the filter base wall (3) by less than one third of the distance between the filter base wall (3) and the lid. 31. The capsule according to claim 28, characterised in that a plane passing through the filter upper edge (5) is separated from the filter base wall (3) by less than one third of the distance between the filter base wall (3) and the lid. 32. A capsule for making espresso coffee by passing pressurised hot water through ground coffee powder, comprising: a cup-shaped main body (15) comprising a main body base wall (16), a main body lateral wall (17) and a main body upper edge (18);a lid fixed to the main body upper edge (18) for closing the cup-shaped main body (15);at least one dose of coffee powder positioned inside the main body (15);at least a filter (2) according to claim 2, positioned inside the main body (15) near to the main body base wall (16), and positioned between the coffee powder and the main body base wall (16), the filter upper edge (5) being coupled to the main body lateral wall (17); andan outflow chamber (20) for the espresso coffee made between the filter base wall (3) and the main body base wall (16) and between the filter lateral wall (4) and the main body lateral wall (17), the outlet sections (11) of the passages facing the outflow chamber (20). 33. The capsule according to claim 32, characterised in that the filter also comprises at least one shaped portion (14) extending from the filter base wall (3) towards the inner part (6) of the bowl and which, at the outer part (7) of the bowl, forms a housing (21) for at least a piercing spike which, in use, pierces the capsule (1) to allow the espresso coffee to flow out of the capsule (1) and in that the filter base wall (3) has a main plane of extension and in that said shaped portion (14) protrudes from the filter base wall (3), perpendicularly to the main plane of extension, by a distance which is less than one third of the distance between the main body base wall (16) and the lid. 34. A capsule for making espresso coffee by passing pressurised hot water through ground coffee powder, comprising: a cup-shaped main body (15) comprising a main body base wall (16), a main body lateral wall (17) and a main body upper edge (18);a lid fixed to the main body upper edge (18) for closing the cup-shaped main body (15);at least one dose of coffee powder positioned inside the main body (15);at least a filter (2) according to claim 8, positioned inside the main body (15) near to the main body base wall (16), and positioned between the coffee powder and the main body base wall (16), the filter upper edge (5) being coupled to the main body lateral wall (17); andan outflow chamber (20) for the espresso coffee made between the filter base wall (3) and the main body base wall (16) and between the filter lateral wall (4) and the main body lateral wall (17), the outlet sections (11) of the passages facing the outflow chamber (20). 35. The capsule according to claim 34, characterised in that the filter also comprises at least one shaped portion (14) extending from the filter base wall (3) towards the inner part (6) of the bowl and which, at the outer part (7) of the bowl, forms a housing (21) for at least a piercing spike which, in use, pierces the capsule (1) to allow the espresso coffee to flow out of the capsule (1) and in that the filter base wall (3) has a main plane of extension and in that said shaped portion (14) protrudes from the filter base wall (3), perpendicularly to the main plane of extension, by a distance which is less than one third of the distance between the main body base wall (16) and the lid. 36. A capsule for making espresso coffee by passing pressurised hot water through ground coffee powder, comprising: a cup-shaped main body (15) comprising a main body base wall (16), a main body lateral wall (17) and a main body upper edge (18);a lid fixed to the main body upper edge (18) for closing the cup-shaped main body (15);at least one dose of coffee powder positioned inside the main body (15);at least a filter (2) according to claim 10, positioned inside the main body (15) near to the main body base wall (16), and positioned between the coffee powder and the main body base wall (16), the filter upper edge (5) being coupled to the main body lateral wall (17); andan outflow chamber (20) for the espresso coffee made between the filter base wall (3) and the main body base wall (16) and between the filter lateral wall (4) and the main body lateral wall (17), the outlet sections (11) of the passages facing the outflow chamber (20). 37. The capsule according to claim 36, characterised in that the filter also comprises at least one shaped portion (14) extending from the filter base wall (3) towards the inner part (6) of the bowl and which, at the outer part (7) of the bowl, forms a housing (21) for at least a piercing spike which, in use, pierces the capsule (1) to allow the espresso coffee to flow out of the capsule (1) and in that the filter base wall (3) has a main plane of extension and in that said shaped portion (14) protrudes from the filter base wall (3), perpendicularly to the main plane of extension, by a distance which is less than one third of the distance between the main body base wall (16) and the lid.
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