Exchangeable filter for beverage production device and beverage production device comprising such filter
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A47J-031/06
B01D-035/00
B01D-024/00
B01D-029/00
A47J-031/60
A47J-031/40
출원번호
US-0864441
(2009-01-23)
등록번호
US-8869678
(2014-10-28)
우선권정보
EP-08100897 (2008-01-24)
국제출원번호
PCT/EP2009/050739
(2009-01-23)
§371/§102 date
20100928
(20100928)
국제공개번호
WO2009/092774
(2009-07-30)
발명자
/ 주소
Epars, Yann
Achtnich, Ulrich
출원인 / 주소
Nestec S.A.
대리인 / 주소
K&L Gates LLP
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
A device for preparing a nutritional composition by supplying water to ingredients provided to the device includes a pump connected to an integrated or external water supply, and a water discharge head designed for providing water to a cartridge containing ingredients for interaction between water a
A device for preparing a nutritional composition by supplying water to ingredients provided to the device includes a pump connected to an integrated or external water supply, and a water discharge head designed for providing water to a cartridge containing ingredients for interaction between water and the ingredients in the cartridge. The pump and the water discharge head are in water communication via a water flowpath, and the pump can supply water under pressure through the water flowpath The device includes a rigid filter assembly having at least one antimicrobial filter membrane and filter enclosing member. The filter assembly and the filter enclosing member are complementary configured such that the filter assembly is insertable into the filter enclosing member across the water flowpath in a fluid tight manner before the water discharge head, and is removable from the filter enclosing member.
대표청구항▼
1. A device for preparing a nutritional composition by supplying water to ingredients provided to the device, the device comprising: a pump connected to a water supply;a water discharge head for providing water to a cartridge containing ingredients for interaction between the water and the ingredien
1. A device for preparing a nutritional composition by supplying water to ingredients provided to the device, the device comprising: a pump connected to a water supply;a water discharge head for providing water to a cartridge containing ingredients for interaction between the water and the ingredients in the cartridge, the pump and the water discharge head are in fluid communication via a water flowpath, the pump can supply water at pressure above atmospheric through the water flowpath;a rigid filter assembly and a plurality of filter enclosing means;the filter assembly comprises at least one antimicrobial filter membrane, the filter assembly complementary to the plurality of filter enclosing means such that the filter assembly is insertable into the plurality of filter enclosing means across the water flowpath in a fluid tight manner before the water discharge head, and is removable from the plurality of filter enclosing means; andbacking means for supporting the surface of the filter membrane, the backing means provided adjacent to the filter membrane and across the water path to control deflection and avoid breaking of the filter membrane when water is passed through the filter membrane, the plurality of filter enclosing means having protrusions that support the backing means, and the backing means comprise perforations and further comprise support areas that are aligned with the protrusions and do not have any perforations. 2. The device according to claim 1, wherein the filter assembly has a form of a substantially rigid card and the plurality of filter enclosing means forms a slot into which the card is insertable. 3. The device according to claim 1, wherein the filter assembly comprises a frame for housing a filter comprising the at least one antimicrobial filter membrane. 4. The device according to claim 1, wherein the pressure drop across the filter assembly is below 1 bar. 5. The device according to claim 1, wherein at least one of the filter assembly or the plurality of filter enclosing means comprises sealing means for providing a fluid tight seal of the filter assembly in the plurality of filter enclosing means when water is passed through the filter assembly. 6. The device according to claim 1, wherein sealing means are provided between the backing means and the at least one antimicrobial filter membrane of the filter assembly for sealing the outer joint faces of the backing means and the at least one antimicrobial filter membrane. 7. The device according to claim 6, wherein the sealing means is an O-ring placed between the upstream side of the at least one antimicrobial filter membrane and the backing means. 8. The device according to claim 1, wherein the device comprises a steam generator connected to the water flowpath for sanitizing the filter assembly connected to the water flowpath. 9. The device according to claim 1, wherein the filter assembly is insertable into or removable from an aperture located on a face of the device. 10. The device according to claim 9, wherein sensing means are provided within the aperture to detect the presence of the filter assembly when inserted into the device. 11. The device according to claim 10, wherein the sensing means is connected to control means for at least the pump of the device and wherein the pump is designed such that the operation of the pump is controlled by an output signal from the sensing means. 12. The device according to claim 1, wherein the filter assembly comprises locking means for interlocking with locking means located at the plurality of filter enclosing means of the device. 13. The device according to claim 1, wherein the nutritional composition is an infant formula to be prepared by a food composition provided to the device by means of a single-use cartridge insertable into the device. 14. A filter card designed for being inserted into a device for preparing a nutritional composition, the filter card comprising a frame for holding in position at least one antimicrobial filter membrane and at least two rigid water permeable perforated backing members for supporting the at least one antimicrobial filter membrane, the at least one antimicrobial filter membrane being sandwiched between the at least two rigid water permeable perforated backing members, the at least two rigid water permeable perforated backing members each having complementary recesses and ridges which interlock with each other in a predefined angular position, the at least two rigid water permeable perforated backing members comprise a first backing member comprising individual arcuate recesses that are distanced from each other along the circumference of the first backing member, and the at least two rigid water permeable perforated backing members comprise a second backing member comprising individual arcuate ridges that are complementary to the individual arcuate recesses of the first backing member. 15. The filter card according to claim 14, wherein the at least one antimicrobial filter membrane comprises a single antimicrobial filter membrane, and the first backing member and the second backing member are adjacent to the single antimicrobial filter membrane on opposite sides of the single antimicrobial filter membrane relative to each other. 16. The filter card according to claim 14, wherein the frame is made of a material selected from the group consisting of rigid plastic and metal for housing the at least one antimicrobial filter membrane. 17. The filter card according to claim 14, wherein the at least one antimicrobial filter membrane has a nominal pore size of between 0.01 and 0.45 microns. 18. The filter card according to claim 14, wherein the at least one antimicrobial filter membrane has a thickness of less than 0.5 mm. 19. The filter card according to claim 14, wherein each of the at least two rigid water permeable perforated backing members has perforations having a wider diameter than the pores of the at least one antimicrobial filter membrane. 20. The filter card according to claim 14, wherein: the at least one antimicrobial filter membrane comprises a first filter membrane and a second filter membrane;the first backing member is an upstream backing member located in close contact to the first filter membrane, and the second backing member is a downstream backing member located in close contact to the second filter membrane;the perforations of the upstream backing member are aligned with the perforations of the downstream backing member; andthe perforations of the downstream backing member have a wider diameter than the perforations of the upstream backing member. 21. The filter card according to claim 14, wherein the filter card comprises water sealing means for sealing the filter card when connected to the device. 22. The filter card according to claim 14, wherein the first backing member of the filter card is arranged to be supported by support members of the device to which the filter card is connected. 23. The filter card according to claim 14, wherein the filter card comprises asymmetrical guiding means designed such that the filter card is insertable into the device at only one predetermined side. 24. The filter card according to claim 14, wherein the filter card comprises positioning means for securing the filter membrane and the perforated backing members according to a limited number of predetermined positions to the frame. 25. The filter card according to claim 14, wherein the filter card has a characteristic selected from the group consisting of: (i) the individual arcuate recesses arranged symmetrically on the first backing member, and the individual arcuate ridges arranged symmetrically on the second backing member, and (ii) the individual arcuate recesses comprise first arcuate recesses and second arcuate recesses, the first arcuate recesses concentric to and within the second arcuate recesses, the first individual arcuate recesses overlapping the second arcuate recesses in a radial direction. 26. A device for preparing a nutritional composition using water supplied to ingredients by the device, the device comprising: a pump connected to a water supply;a water discharge head for providing water to a cartridge containing the ingredients, the pump and the water discharge head are in fluid communication via a water flowpath, the pump can supply water at pressure above atmospheric through the water flowpath;a rigid filter assembly and filter enclosing members, the filter assembly comprises at least one antimicrobial filter membrane, and the filter assembly and the filter enclosing members are configured such that the filter assembly is removably insertable into the filter enclosing members across the water flowpath in a fluid tight manner before the water discharge head; anda backing member for supporting the surface of the filter membrane, the backing member provided adjacent to the filter membrane and across the water path to control deflection and avoid breaking of the filter membrane when water is passed through the at least one filter membrane, and the filter enclosing members having protrusions that support the backing member, and the backing member comprises perforations and further comprises support areas that are aligned with the protrusions and do not have any perforations.
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이 특허에 인용된 특허 (3)
Walters, Jr., Lawrence S.; Sanders, III, Irl R.; Bernardi, Dennis C., Beverage brewing system and method for using same.
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