[특허]Draining, irrigating and aeration of soil and heating or cooling of soil

Draining, irrigating and aeration of soil and heating or cooling of soil 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E02B-011/02
출원번호	US-0060214 (1979-07-23)
발명자 / 주소	St. Clair John C. (Box 3345 Columbus OH 43210)
인용정보	피인용 횟수 : 20 인용 특허 : 0

초록 ▼

Flexible ¼inch diameter plastic tubing is buried horizontally below the surface of the ground. Water or air is forced in the tubing to expand the tubing and make the cavities, that the tubing is in, ¼inch in diameter. Then the water or air is sucked out of the tubing so that hollow earth-walled cavities ¼inch in diameter are left with the plastic tubing occupying only a small fraction of the volume of the cavities. This produces a system of worm holes over the field that will drain excess water after rains. In drouths irrigation water is introduced through the worm holes. Air is blown in the worm holes to aerate the soil at other times, all of which greatly increase plant growth. By guaranteeing that the ground always will be moist the thermal conductivity of the ground will always be near the maximum around the worm holes. Therefore part of the tunes can always be used to pass water through so the water can be cooled or warmed with the ground being used for a source of heat or cooling efficiently. When the worm hole like cavity for drainage is stopped up by pressure of equipment passing over or other causes the tube is blown up again and then deflated.

대표청구항 ▼

A method for draining land which comprises: (a) burying a flexible tube in a substantially horizontal position beneath the surface of the ground, (b) then after the tube is placed below the surface of the ground forcing fluid into an end of the tube and thereby increasing the internal volume of the tube, said increase in volume being below the surface of the ground; (c) then after step (b) in which fluid is forced into the tube, deflating the tube by removing fluid from inside the tube by submitting an end of the tube to a pressure less than the pressure at a point that is both outside the tube and contacts said tube, said point being under the surface of ground being drained, (d) then after step (c) forcing into an end of the tube a fluid inside the tube and thereby inflating the tube and increasing its internal volume below the surface of the ground, (e) then after the inflation of the tube removing fluid from the tube so the volume, the tube occupies, decreases in volume and there is left because of this decrease in volume a cavity around the tube that is open the length of the tube and to an outlet at the end of the tube, that is open for water to drain out of, (f) after the mentioned inflation and deflation in steps (d) and (e), draining water through the cavity around the tube to the outlet at the end of the tube and out of the cavity to the outlet, (g) after the preceding steps, and after the rate of drainage from the cavity has decreased after rains, repeating both the inflation and deflation steps so as to increase the rate of drainage from the cavity after rains.

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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
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연합인증

Draining, irrigating and aeration of soil and heating or cooling of soil 원문보기

초록 ▼

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Draining, irrigating and aeration of soil and heating or cooling of soil 원문보기

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이 특허를 인용한 특허 (20)

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