Coffee pod having a flexible microporous or microperforated casing
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65D-085/804
A47J-031/36
B65D-081/00
출원번호
US-0569959
(2014-12-15)
등록번호
US-9371177
(2016-06-21)
우선권정보
FR-10 56208 (2010-07-28)
발명자
/ 주소
Ferrier, Frederic
Luciani, Andre
출원인 / 주소
Ferrier, Frederic
대리인 / 주소
Caesar Rivise, PC
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
A coffee pod which can be used for machines for preparing and dispensing coffee beverages that comprise at least one extraction chamber, and at least one piston for compacting a predetermined amount of ground coffee inserted into the extraction chamber. The pod includes: a predetermined amount of gr
A coffee pod which can be used for machines for preparing and dispensing coffee beverages that comprise at least one extraction chamber, and at least one piston for compacting a predetermined amount of ground coffee inserted into the extraction chamber. The pod includes: a predetermined amount of ground coffee compacted into an aggregate of ground coffee beans, having an outer shape suitable for rolling, and preferably a substantially spherical ball shape; and a filter casing formed of at least one pervious, microporous or microperforated sheet or film, trapping and matching the shape of the compacted coffee aggregate. The sheet or film is flexible, having stretchability properties with an elongation at rupture of at least 30% and an ultimate tensile strength of less than 2,000 N/m, and a thickness of at least 150 μm.
대표청구항▼
1. A coffee pod which can be used in machines for preparing and dispensing coffee beverages of the type comprising at least one extraction chamber and at least one tamping piston to tamp a determined quantity of ground coffee inserted in said extraction chamber, said pod comprising: about 5 to 15 g
1. A coffee pod which can be used in machines for preparing and dispensing coffee beverages of the type comprising at least one extraction chamber and at least one tamping piston to tamp a determined quantity of ground coffee inserted in said extraction chamber, said pod comprising: about 5 to 15 g of compacted aggregate of ground coffee, said compacted aggregate having a density that is about 0.65 to 0.75 kg/dm3 and having a spherical shape of about 20 to 40 mm in diameter, andan external filtering casing formed of at least one permeable, microporous or micro-perforated sheet or film trapping and following the contour of and molded against said compacted aggregate of coffee, wherein said sheet or said film is flexible having stretch properties with an ultimate elongation of at least 30%, an ultimate tensile strength of less than 2,000 N/m and a thickness of about 150 to 500 μm wherein said casing presents solidity and stretch properties allowing de-compacting of the coffee aggregate contained in the casing, by changing shape and increasing volume and allowing the swelling of the moistened pod after injection of pressurized water through the casing, without the casing becoming torn via compression. 2. The pod according to claim 1, wherein said casing has a gram weight of between 20 and 50 g/m2. 3. The pod according to claim 1, wherein said casing is formed of a nonwoven material of entangled synthetic fibres, with surface micropores, wherein the largest size of said surface micropores is 0.15 to 0.30 mm. 4. The pod according to claim 1, wherein said casing is formed of a film of microperforated synthetic plastic material, the largest size of said microperforations being 0.15 to 0.30 mm, and said film having a surface density of perforations of 50 to 250 perforations/cm2. 5. The pod according to claim 3, wherein the constituent material(s) of said casing are chosen from among polyethylene, polypropylene, polyester and viscose. 6. The pod according to claim 3, wherein said casing is formed of a nonwoven material of polyester fibres coated with polyethylene. 7. The pod according to claim 5, wherein said casing is formed of a film of polyethylene or polypropylene. 8. The pod according to claim 1, wherein said casing comprises two semi-casings sealed onto each other along at least one continuous junction line peripheral to the pod, the constituent material of said casing having a melt temperature higher than 100° C. 9. The pod according to claim 8, wherein said semi-casings are symmetrical and semi spherical and sealed onto each other by heat welding. 10. The pod according to claim 9, wherein said quantity of compacted coffee is 5 to 8 g, and the density of the compacted ground coffee forming said compacted aggregate is 0.68 to 0.72 kg/dm3. 11. The pod according to claim 10, wherein said pod is substantially spherical with a diameter of about 24 to 34 mm. 12. The pod according to claim 11 with a diameter of about 26 to 30 mm. 13. The pod according to claim 2, wherein said casing is formed of a nonwoven material of entangled synthetic fibres, with surface micropores wherein the largest size of said surface micropores is 0.15 to 0.30 mm. 14. The pod according to claim 2, wherein said casing is formed of a film of microperforated synthetic plastic material, the largest size of said microperforations being 0.15 to 0.30 mm, and said film having a surface density of perforations of 50 to 250 perforations/cm2. 15. The pod according to claim 14, wherein the constituent material(s) of said casing are chosen from among polyethylene, polypropylene, polyester and viscose. 16. The pod according to claim 15, wherein said casing is formed of a nonwoven material of polyester fibres coated with polyethylene. 17. The pod according to claim 15, wherein said casing is formed of a film of polyethylene or polypropylene. 18. The pod according to claim 2, wherein said casing comprises two semi-casings sealed onto each other along at least one continuous junction line peripheral to the pod, the constituent material of said casing having a melt temperature higher than 100° C. 19. The pod according to claim 18, wherein said semi-casings are symmetrical and semi spherical and sealed onto each other by heat welding. 20. The pod according to claim 19, wherein said quantity of compacted coffee is 5 to 8 g, and the density of the compacted ground coffee forming said compacted aggregate is 0.68 to 0.72 kg/dm3.
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이 특허에 인용된 특허 (11)
Dijs,Daniel Albertus Jozef, Assembly for use in a coffee machine for preparing coffee.
Adam Gabriel H. (Roswell GA) Cotton James D. (Marietta GA) Durocher Donald F. (Roswell GA) Peterson Richard M. (Marietta GA), Hydraulically entangled, autogenous-bonding, nonwoven composite fabric.
Colston, Martin E.; Gee, Christopher J.; Shaw, Jon W.; Pope, Kevin C.; Cooke, John C.; Caroen, Adrian B.; Rivin, Evgeny I.; Fey, Victor R., Methods and apparatus for brewing beverages.
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