Method and a system for producing foamed milk
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A23C-007/00
A47J-031/41
A47J-031/44
출원번호
US-0578265
(2010-06-15)
등록번호
US-9211032
(2015-12-15)
우선권정보
WO-PCT/SE2010/050228 (2010-02-26)
국제출원번호
PCT/SE2010/050670
(2010-06-15)
§371/§102 date
20121010
(20121010)
국제공개번호
WO2011/105943
(2011-09-01)
발명자
/ 주소
Larson, Peter
Olsson Stridsberg, Patrik
출원인 / 주소
CREM INTERNATIONAL AKTIEBOLAG
대리인 / 주소
Melcher, Jeffrey S.
인용정보
피인용 횟수 :
0인용 특허 :
11
초록▼
The invention relates to a method for producing foamed milk. The method comprises passing milk from a bag-in-box container 1 through a conduit 3 by means of a pump 4 and heating the milk by passing it through a continuous-flow heater 5. At the end of the conduit 3, the milk is whipped to foam by an
The invention relates to a method for producing foamed milk. The method comprises passing milk from a bag-in-box container 1 through a conduit 3 by means of a pump 4 and heating the milk by passing it through a continuous-flow heater 5. At the end of the conduit 3, the milk is whipped to foam by an impeller in a mixer bowl. The invention also relates to a system for producing foamed milk. The system comprises a conduit 3, a heater 5, a pump 4 and a mixer bowl 7 with an impeller 8.
대표청구항▼
1. A method for producing foamed milk, the method comprising: providing a milk container having an outlet tube comprising a flexible material constructed for use in a peristaltic pump, wherein the outlet tube is initially sealed at its end;placing a portion of the outlet tube in a peristaltic pump w
1. A method for producing foamed milk, the method comprising: providing a milk container having an outlet tube comprising a flexible material constructed for use in a peristaltic pump, wherein the outlet tube is initially sealed at its end;placing a portion of the outlet tube in a peristaltic pump while the outlet tube is still sealed at its end such that the pump squeezes the outlet tube together and blocks the passage of fluid through the outlet tube when the pump is not activated;opening the outlet tube downstream of the peristaltic pump and connecting the outlet tube to a milk conduit such that milk may pass from the milk container and into the milk conduit when;passing milk from the milk container through the milk conduit by means of the peristaltic pump;heating the milk by passing the milk through or past a continuous-flow heater arranged to heat milk in the milk conduit;conveying the heated milk through the milk conduit to a mixer bowl located upstream of an outlet and in which mixer bowl a rotating element is arranged to be able to whip heated milk into foam, the mixing bowl having an inlet for allowing air to enter the mixing bowl;whipping the heated milk by means of the rotating element such that the heated milk is transformed to foamed milk without the use of steam or compressed air; anddischarging the foamed milk through an outlet. 2. The method according to claim 1, wherein the milk is heated in the continuous-flow heater to a temperature in the range of 58° C.-75° C. 3. The method according to claim 1, wherein the rotating element operates at a speed of 9630 rpm-11770 rpm. 4. The method according to claim 1, wherein the temperature of either the milk or a part of the system for producing foamed milk is measured and the speed of the pump is controlled based on the measured temperature. 5. The method according to claim 1, wherein, after the milk has been passed through the continuous-flow heater, the temperature of the milk is detected by a first temperature sensor and a signal from the first temperature sensor is generated which signal is based on the detected temperature and used to control the speed of the pump in order to reach or maintain a set value for the temperature of the milk. 6. The method according to claim 5, wherein the temperature of the milk is detected also by a second temperature sensor before the milk is passed through the continuous flow heater and in that the speed of the pump is controlled at least on the basis of both the temperature of the milk before the continuous flow heater and the temperature of the milk after the continuous flow heater. 7. The method according to claim 1, wherein, after a predetermined quantity of milk has been passed through the milk conduit and out through the outlet, a hot cleaning liquid such as water is caused to flow through the conduit such that the milk conduit is cleaned, wherein the method preferably also comprises interrupting the flow of hot cleaning liquid and operate the pump to pump air through the milk conduit such that remnants of liquid are removed from the milk conduit. 8. The method according to claim 1, wherein the method additionally comprises: passing a first quantity of hot cleaning liquid through the milk conduit before milk is pumped through the milk conduit, the hot cleaning liquid having a temperature in the range of 90° C.-99° C.; pumping milk through the milk conduit and transforming the milk into foamed milk; and passing a second quantity of hot cleaning liquid at a temperature in the range of 90° C.-99° C. through the milk conduit and allowing at least a part of the second quantity of hot cleaning liquid to reach the outlet. 9. The method according to claim 1, wherein the method additionally comprises: passing a first quantity of hot cleaning liquid through the milk conduit before milk is pumped through the milk conduit, the hot cleaning liquid having a temperature in the range of 94° C.-98° C.; pumping milk through the milk conduit and transforming the milk into foamed milk; and passing a second quantity of hot cleaning liquid at a temperature in the range of 90° C.-99° C. through the milk conduit and allowing at least a part of the second quantity of hot cleaning liquid to reach the outlet. 10. The method according to claim 1, wherein the method additionally comprises a chemical cleaning sequence that is performed 2-7 times per week, the chemical cleaning sequence comprising: flushing the milk conduit with hot cleaning liquid from the source of hot cleaning liquid; passing a liquid chemical cleaning agent into the milk conduit such that at least a part of the milk conduit is filled by the liquid chemical cleaning agent; letting the liquid chemical cleaning agent remain in the milk conduit for at least 60 seconds; pumping the chemical cleaning agent out of the milk conduit; and letting the milk conduit air dry for at least 4 minutes before milk is passed through the milk conduit. 11. A foamed milk system for producing foamed milk, the system comprising: a milk container having an outlet tube comprising a flexible material constructed for use with a peristaltic pump, wherein the outlet tube is initially sealed at its end;a milk conduit which is connected to or connectable to the outlet tube of the milk container;a continuous flow heater arranged to be capable of heating milk in the milk conduit;a peristaltic pump arranged to convey a liquid from the outlet tube and through the milk conduit;an outlet at an end of the conduit through which outlet foamed milk can leave the conduit; anda mixer bowl located upstream of the outlet and in which mixer bowl a rotatable element is arranged to be able to whip heated milk into foam without the use of steam or compressed air. 12. The system according to claim 11, wherein the system comprises a first temperature sensor arranged to detect the temperature of the milk in the milk conduit downstream of the continuous flow heater and a control device arranged to control the speed of the pump and wherein the first temperature sensor is connected to the control device and arranged to generate a signal representing the temperature of the milk in the milk conduit and wherein the control device is arranged to control the speed of the pump at least partially on the basis of the temperature detected by the first temperature sensor. 13. The system according to claim 12, wherein the system comprises a second temperature sensor arranged to detect the temperature of the milk in the milk conduit upstream of the continuous flow heater and which second temperature sensor is connected to the control device and arranged to generate a signal representing the temperature of the milk in the milk conduit, wherein the control device is arranged to control the speed of the pump at least partially on the basis of the temperatures detected by both the first and the second sensor respectively. 14. The system according to claim 11, wherein the system comprises a waste tray and in that a distributor valve is arranged in the conduit in the path between the pump and the mixer bowl, the distributor valve allowing liquid to be passed either to the mixer bowl or to the waste tray, and in that preferably a source of hot liquid is connected to the milk conduit, preferably at a point upstream of the continuous flow heater. 15. The system according to claim 11, wherein the system additionally comprises a distributor valve which is connected or connectable to both the milk container and at least one source of a cleaning agent such that either milk or a cleaning agent can be passed through the milk conduit depending on the position of the distributor valve and in that a conduit for a cleaning agent connects the at least one source of a cleaning agent to the distributor valve that is connected to or connectable to the milk container. 16. The system according to claim 11, wherein the system comprises a source of a hot cleaning liquid and a source of a chemical cleaning agent and in that a distributor valve is connected to the conduit for a cleaning agent and also connected to both the source of a hot cleaning liquid and to the source of a chemical cleaning agent such that either a hot cleaning liquid or a chemical cleaning agent can be sent through the conduit for a cleaning agent and further to the milk conduit.
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