[특허]Apparatus for controlling the feed rate and batch size of a material feeder

Apparatus for controlling the feed rate and batch size of a material feeder 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B67D-005/30
출원번호	US-0604506 (1975-08-13)
발명자 / 주소	Wright Jr. Thomas Jack (Cherry Hill NJ)
출원인 / 주소	K-Tron Corporation (Glassboro NJ 02)
인용정보	피인용 횟수 : 35 인용 특허 : 0

초록 ▼

Apparatus for controlling the feed rate and batch size of the material feeder is disclosed. A signal generator computes the weight of material delivered by the material feeder and compares it to first and second presettable values. When the weight of material delivered by the feeder is less than the first presettable value, the signal generator enables a first pulse generator which generates a pulse train having a relatively high pulse repetition frequency. This pulse train is applied to a motor speed controller which causes the feeder to deliver material at a relatively high rate. When the weight of material delivered by the feeder reaches the first presettable value, the signal generator enables a second pulse generator and disenables the first pulse generator. The second pulse generator generates a pulse train having a pulse repetition frequency substantially lower than that of the pulse train generated by the first pulse generator. The second pulse train is also applied to the motor speed controller which then causes the feeder to deliver material at a relatively low rate. Finally, when the weight of material delivered by the feeder reaches the second presettable value, the signal generator generates an end of batch signal which disenables the motor speed controller and causes the material feeder to stop delivering material.

대표청구항 ▼

Digital control apparatus for controlling the operation of a material feeder, comprising: signal generating means for computing the weight of material delivered by said feeder and for generating a dribble speed signal when said weight of materIal reaches a first preset value and an end of batch signal when said weight of material reaches a second preset value; means for generating a first pulse train having a first pulse repetition frequency; means for generating a second pulse train having a second pulse repetition frequency, said second pulse repetition frequency being less than said first pulse repetition frequency; motor speed controller means for controlling the feed rate of said feeder; means responsive to said dribble speed signal for applying said first pulse train to said motor speed controller means prior to the generation of said dribble speed signal and for applying said second pulse train to said motor speed controller means subsequent to the generation of said dribble speed signal; said motor speed controller means to cause said feeder to deliver material as a feed rate proportional to the frequency of the pulse train applied thereto; and means responsive to the generation of said end of batch signal for causing said feeder to stop delivering material.

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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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Apparatus for controlling the feed rate and batch size of a material feeder 원문보기

초록 ▼

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Apparatus for controlling the feed rate and batch size of a material feeder 원문보기

초록 ▼

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연구과제 타임라인

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이 특허를 인용한 특허 (35)

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