[특허]Borehole packer

Borehole packer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-033/127
출원번호	US-0765246 (1991-09-25)
우선권정보	GB-0021059 (1990-09-27)
발명자 / 주소	Toon Donald A. (Burlington CAX) Belshaw Douglas J. (Georgetown CAX)
출원인 / 주소	Solinst Canada Ltd (Glen Williams CAX 03)
인용정보	피인용 횟수 : 145 인용 특허 : 0

초록 ▼

The packer (4) is for use in isolating long lengths (i.e. heights) of a borehole (2), e.g. between sampling points. The packer includes bentonite (23) which is activated by the natural groundwater in the borehole. The water is admitted into the bentonite through narrow portholes (21), which delays the flow of water into the packer. The water is distributed evenly throughout the bentonite by blotting paper (14,16) which soaks up the incoming water and prevents the water passing to the bentonite until the blotting paper is all saturated. Alternatives to the use of blotting paper, to transmit the water evenly over and through the whole body of bentonite, include perforated corrugated plastic, corrugated cardboard, and perforated plastic pipes.

대표청구항 ▼

Borehole packer assembly, wherein: the assembly includes an inner tube, and an outer tube of elastomeric material that is flexible and stretchable; the inner and outer tubes are so dimensioned and arranged as to create an elongate annular chamber therebetween; the annular chamber is elongate in the sense that the chamber is many times longer in its axial extent than in its radial extent; the assembly includes means for closing off the upper and lower ends of the annular chamber; the assembly includes a body of expandable packer material, the material being of the kind which expands considerably when wet, and which becomes impermeable when wet; the body of expandable packer material is located in, and substantially fills, the elongate annular chamber; the assembly includes an activation port or ports, so disposed as to provide passage between the said chamber and natural groundwater present in the borehole; the nature and dimensions of the body of expandable packer material are such that a quantity Q of the groundwater is required to be introduced into the body of material in order for the body to expand sufficiently to fully seal off the borehole; the assembly includes a distribution means, which is effective to distribute the quantity Q of the groundwater received via the port or ports throughout the whole body of expandable packer material; and the assembly includes a delay means which is effective to delay for a substantial period of time, passage of the full quantity Q of the groundwater from the port or ports, through the distribution means and into the body of expandable packer 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
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
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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