[특허]Method for the preparation of coffee

Method for the preparation of coffee 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A23F-005/24
출원번호	US-0018606 (1987-02-25)
우선권정보	DE-3615158 (1986-05-05)
발명자 / 주소	Meier Hermann (Dttingen CHX)
출원인 / 주소	Cafina AG (Hunzenschwil CHX 03)
인용정보	피인용 횟수 : 32 인용 특허 : 0

초록 ▼

In a coffee brewing apparatus, a milling assembly produces coffee powder which is filled into a brewing chamber. Then the brewing chamber is closed by a displaceable piston in order to exert a preselected pressure on the coffee powder in the brewing chamber, and hot water is forced through the compressed coffee powder. If it is recognized after several subsequent preparation cycles that too much or too less coffee powder has been filled into the brewing chamber, the operation period of the milling assembly is shortened or extended automatically under the influence of a programmed control unit. Simultaneously or additionally, a flow rate detector measures the amount of water flowing through the compressed coffee powder and the control unit measures the time required by the water to pass through the coffee powder in the brewing chamber. If a deviation of the measured time from a reference value is detected, the milling rate is adjusted to produce finer or coarser coffee powder in one of the subsequent preparation cycles. Minor deviations within normal tolerances are ignored.

대표청구항 ▼

A method of preparing coffee comprising cyclically repeated steps of: feeding coffee beans to a coffee bean milling means; milling the coffee beans to a coffee powder having a selected average grain size; adding a selected amount of the coffee powder into a brewing chamber; displacing a piston into the interior of the brewing chamber and thereby reducing the internal volume of the brewing chamber containing the coffee powder until a preselected pressure is exerted on the coffee powder; supplying a preselected amount of hot water into the brewing chamber and forcing the hot water through the compressed coffee powder to prepare coffee; collecting the prepared coffee; measuring the length of the displacement path of the piston required to exert the preselected pressure on the coffee powder, and recording the measurement value in a microprocessor having a memory with a reference value stored therein and corresponding to the calculated length of the displacement path of the piston required to exert the preselected pressure on the coffee powder in the brewing chamber; retrieving from the microprocessor memory the reference value stored therein; comparing the measurement value and the reference value and generating a comparison signal; and altering the amount of coffee powder fed into the brewing chamber during a subsequent cycle in response to the magnitude of the comparison signal deviating from a predetermined magnitude. A method of preparing coffee comprising cyclically repeated steps of: feeding coffee beans to a coffee bean milling means; milling the coffee beans to a coffee powder having a selected average grain size; adding a selected amount of the coffee powder into a brewing chamber; displacing a piston into the interior of the brewing chamber and thereby reducing the internal volume of the brewing chamber containing the coffee powder until a preselected pressure is exerted on the coffee powder; supplying a preselected amount of hot water into the brewing chamber and forcing the hot water through the compressed coffee powder to prepare coffee; collecting the prepared coffee; measuring the length of the displacement path of the piston required to exert the preselected pressure on the coffee powder, and recording the length measurement value in a microprocessor having a memory with a length reference value stored therein and corresponding to the calculated length of the displacement path of the piston required to exert the preselected pressure on the coffee powder in the brewing chamber; retrieving from the microprocessor memory the length reference value stored therein; comparing the length measurement value and the length reference value and generating a length comparison signal; altering the amount of coffee powder fed into the brewing chamber during a subsequent cycle in response to the magnitude of the length comparison signal deviating from a predetermined magnitude; measuring the time required for the preselected amount of hot water to pass through the coffee powder in the brewing chamber and recording the time measurement value in the microprocessor having a time reference value corresponding to a calculated amount of time required for the preselected amount of hot water to pass through the coffee powder in the brewing chamber stored in the memory thereof; retrieving from the microprocessor memory the time reference value stored therein; comparing the time measurement value and the time reference value and generating a time comparison signal; and altering the degree of milling of the coffee means to thereby change the average grain size of the coffee powder fed into the brewing chamber in response to the magnitude of the time comparison signal deviating from a predetermined magnitude.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Method for the preparation of coffee 원문보기

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Method for the preparation of coffee 원문보기

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연구과제 타임라인

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