[특허]Mine shaft and adit closure apparatus and method

[미국특허] Mine shaft and adit closure apparatus and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E21B-033/127 E21B-033/13
출원번호	US-0613498 (1996-03-11)
발명자 / 주소	Rajkovich Richard A.
출원인 / 주소	Foam Concepts, Inc.
대리인 / 주소	Johnson
인용정보	피인용 횟수 : 13 인용 특허 : 14

초록 ▼

A mine shaft closure plug which is created by a self-expanding plastic foam on a platform positioned within the mine shaft. Multiple expansion foam containers are used to provide the foam. Each expansion foam container has two closed waterproof pouches, an inner pouch and an outer pouch, each containing a separate component of the foam. The inner pouch is contained within the outer pouch. Upon breaking the inner pouch, the separate foam components combine within the outer pouch to form a complete expansion foam. The foam expands slowly enough to provide sufficient time for the container to be placed on the platform. Once in position, the expansion foam bursts the outer pouch to form the expansion foam plug above the platform. Either the platform or the expansion foam containers may be lowered into place by attached tethers.

대표청구항 ▼

[ What is claimed is:] [1.] A mine shaft closure apparatus comprising:a platform having substantially the outline dimensions of a cross section of the mine shaft, the platform being positioned within the mine shaft at a predetermined location;a plurality of expansion foam containers each having an inner pouch and an outer pouch formed from a liquid-impervious flexible film material, the inner pouch containing a first expansion foam component, the outer pouch containing the inner pouch and a second expansion foam component; andan expansion foam plug formed above the platform from the expansion foam containers by breaking the inner pouch of each expansion foam container and placing each expansion foam container on the platform;wherein for each expansion foam container the first and second expansion foam components combine within the outer pouch to form an expansion foam slowly enough to provide sufficient time for the expansion foam container to be placed on the platform, the expansion foam bursting the outer pouch to form the expansion foam plug above the platform. [26.] A method of using first and second bulkheads and a plurality of expansion foam containers to form an adit closure, the expansion foam containers having an inner pouch containing a first expansion foam component and an outer pouch containing the inner pouch and a second expansion foam component, the method comprising the steps of:(a) positioning the first bulkhead within the adit at a first predetermined location and the second bulkhead within the adit at a second predetermined location;(b) for each expansion foam container(1) applying mechanical force to the expansion foam container to break the inner pouch, thereby combining the first and second expansion foam components within the outer pouch;(2) mixing together the first and second expansion foam components within the outer pouch; and(3) placing the expansion foam container between the first and second bulkheads;wherein for each expansion foam container the first and second expansion foam components combine within the outer pouch to form an expansion foam slowly enough to provide sufficient time for the expansion foam container to be placed between the first and second bulkheads, the expansion foam bursting the outer pouch to form an expansion foam plug between the first and second bulkheads.

이 특허에 인용된 특허 (14) 인용/피인용 타임라인 분석

Jackson Jim (Carvel CAX), Bore hole plug.
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Robbins Geoffrey (Epping AUX), Borehole plug and method.
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Marz Horst F. (Otterburn Park CAX), Expandable explosive and stemming cartridge.
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Robbins Geoffrey (St. Peters AUX), Inflatable borehole plug assemblies.
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Fitzgibbon ; Jr. Daniel F. (Rte. 3 ; Van Dyke Mill Rd. Taylorsville KY 40071), Inflatable devices for suspending explosives and stemming materials in boreholes.
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Fitzgibbon ; Jr. Daniel F. (P.O. Box 110 Finchville KY 40022), Inflatable devices for suspending explosives in boreholes.
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Fitzgibbon ; Jr. Daniel F. (Route 3 ; Van Dyke Mill Road Taylorsville KY 40071), Methods and apparatus for field blasting of earth formations using inflatable devices for suspending explosives in bore.
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Fitzgibbon, Jr., Daniel F., Methods and apparatus for field blasting of earth formations using inflatable devices for suspending explosives in boreholes.
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Isaac Stanley N. (6 Falstone Crescent Ashington ; Northumberland N.E. 63 Oty GB2), Methods of and containers for igniting explosives.
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Fitzgibbon ; Jr. Daniel F. (Rte. 3 ; Van Dyke Mill Rd. Taylorsville KY 40071), Methods of field blasting of earth formations using inflatable devices for suspending explosives in boreholes.
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Bivens Joseph R. (Martinsburg WV) Lyerly William M. (Hagerstown MD) Simmons Walter J. (Martinsburg WV), Organic grouting composition for anchoring a bolt in a hole.
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Miller Kenneth A. (West Jordan UT), Packaged emulsion explosives and methods of manufacture thereof.
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Simon James R. (Lachute CAX) Welburn David J. (Brownsburg CAX), Reinforced explosive shock tube.
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Simmons Walter John (Martinsburg WV) Willis Frank Marsden (Hedgesville WV), Tampable chub cartridge.
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이 특허를 인용한 특허 (13) 인용/피인용 타임라인 분석

Wood, Edward T., Closeable open cell foam for downhole use.
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Collinsworth,Stephen Mitchell; Heinke,Nils Alberto; Skaggs,Roger Dean, Drillhole blasting.
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Dae Woo Kang KR, Method for blasting tunnels using an air bladder.
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Ozment,Alden, Method for forming a barrier.
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Ren, Jiaxiang; Gerrard, David Peter; Goodson, James Edward; Duan, Ping; Guo, Lillian, Method of curing thermoplastic polymer for shape memory material.
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Ren, Jiaxiang; Gerrard, David; Goodson, James Edward; Duan, Ping; Guo, Lillian, Method of curing thermoplastic polymer for shape memory material.
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Duan, Ping; Agrawal, Gaurav; Gerrard, David P., Polyarylene compositions for downhole applications, methods of manufacture, and uses thereof.
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Duan, Ping; Agrawal, Gaurav; Gerrard, David P., Polyarylene compositions, methods of manufacture, and articles thereof.
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Kang,Dae Woo, Self-supporting air tube for blasting.
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Duan, Ping; Rosenblatt, Steve, Shape memory material packer for subterranean use.
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Ren, Jiaxiang; Gerrard, David P.; Goodson, James E.; Duan, Ping; Agrawal, Gaurav, Shape memory polyphenylene sulfide manufacturing, process, and composition.
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Ren, Jiaxiang; Gerrard, David P.; Goodson, James E.; Guo, Li; Duan, Ping, Shaped memory polyphenylene sulfide (PPS) for downhole packer applications.
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Gerrard, David Peter; Roy, Sayantan, Toughened solder for downhole applications, methods of manufacture thereof and articles comprising the same.
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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

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[미국특허] Mine shaft and adit closure apparatus and method 원문보기