[특허]Method of detecting leak of fluid from a long pipeline

[미국특허] Method of detecting leak of fluid from a long pipeline 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01V-001/00
출원번호	US-0367337 (1973-06-05)
우선권정보	JA-0027810 (1971-04-26); JA-0099737 (1971-12-08)
발명자 / 주소	Kusuda Takazo (Ibaraki JA) Nishiwaki Niichi (Tokyo JA)
출원인 / 주소	Osaka Gas Kabushiki Kaisha (Osaka JA 03)
인용정보	피인용 횟수 : 24 인용 특허 : 0

초록 ▼

A system for systematical detecting a leak of fluid from a long pipe comprising a plurality of apparatuses like microphones set at relatively large intervals within a relatively long limited space, formed by utilizing the wall of the pipe like a space within the pipe and extending longitudinally of the pipe. The apparatuses intercept sonic waves caused by the leak of fluid from the pipe propagated in the limited space. The system further includes an apparatus for detecting that at least one first-mentioned apparatus has intercepted the sonic wave caused by the fluid leak.

대표청구항 ▼

A method of detecting a leak of fluid from a pipe of a long pipeline for transporting fluid comprising, in combination: a. forming a long hollow space defined at least on its one side in cross section by a wall of said pipe for the transport of fluid, said hollow space extending longitudinally along said pipe; b. providing a plurality of stationary first means for intercepting sonic walve propagated within said hollow space, individual ones of said first means being in longitudinally spaced apart relationship to each other along said pipe over a long distance, any two of said individual ones of said first means which are adjacent to one another being capable of separate interception of a sonic wave inside of said pipe caused by a leak which may occur between them; c. providing second means for detecting signals from said plurality of first means indicating the interception of a sonic wave by said first means; d. causing at least any two of said first means which are adjacent to one another to intercept a sonic wave propagated within said hollow space; e. causing said second means to detect the signAls from said plurality of first means indicating that a sonic wave caused by a leak has been intercepted by at least said two adjacent ones of said first means; and f. analyzing the relative relation between the signals; whereby the presence and position of a fluid leak from the pipe is detected.

이 특허를 인용한 특허 (24) 인용/피인용 타임라인 분석

Varterasian John H. (Livonia MI), Acoustic inspection method.
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Al-Qahtani, Hussain M.; Hawwa, Muhammad A., Acoustic leak detection system and method with enviromental noise isolation.
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Dickey Joseph W. (Annapolis MD) Powell Lloyd E. (Annapolis MD), Acoustical testing of hydraulic actuators.
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Muraviev Gennady A. (Keskuse ; 20 ; kv. 20 Tallin SUX) Kublanovsky Lev B. (Festivalnaya ; 31 ; kv. 63 Moscow SUX), Automatic fault locating apparatus for a pressurized pipeline.
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Leon Robert L., Detecting seal leaks in installed valves.
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Canfield, Eric L.; Cheslock, Edward P., Detecting unintended flush toilet water flow.
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Savic Michael (Ballston Lake NY), Detection of leaks in vessels.
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Hegner, Rolf, Devices and methods for the checking and for the checking and repairing of pipe connections.
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Harper Philip G. (Edinburgh GB6) Jardine Stuart I. (Edinburgh GB6) Quinn Andrew J. (Edinburgh GB6) Treherne David M. (Edinburgh GB6), Finding the direction of a sound.
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Yang, Bao-Wen; Yang, Eric; Recane, Marion; Yang, Stephanie H., Integrated acoustic leak detection system using intrusive and non-intrusive sensors.
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Fuchs Helmut V. (Weil DEX) Schupp Gerold (Stuttgart DEX) Voigtsberger Carl-Alexander (Stuttgart DEX), Method and apparatus for locating leakages in pipes and similar conduits.
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Leon Robert L. ; Heagerty David Q., Method and apparatus for on-line detection of leaky emergency shut down or other valves.
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Bao-Wen Yang ; Marion Recane, Method and apparatus for pattern match filtering for real time acoustic pipeline leak detection and location.
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Glenn ; Jr. ; Edwin E., Method and system for acoustic noise logging.
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Glenn ; Jr. Edwin E. (Dallas TX), Method for distinguishing between single-phase gas and single-phase liquid leaks in well casings.
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Sugiyama, Sakae, Method of detecting a leakage of fluid.
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Yang, Bao-Wen; Recane, Marion, Pattern matching for real time leak detection and location in pipelines.
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Canfield, Eric L.; Cheslock, Edward P., Self-stick resonant enclosure that responds to flush toilet fill valve water inflow vibration.
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Canfield, Eric L.; Cheslock, Edward P., Self-stick resonant enclosure that responds to flush toilet fill valve water inflow vibration.
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Fritz Robert J. (Schenectady NY), Sidetone generator flowmeter.
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Gratacos ; Jaime ; Perrolet ; Christian ; Mousteou ; Roger, Testing for corrosion of the internal wall of a metal chamber.
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Canfield, Eric L.; Soma, Scott; Canfield, James, Toilet bowl overflow prevention and water conservation system and method.
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McKeon R. Clayton ; Clouse Melvin F., Ultrasonic detector.
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Neale ; Sr. Dory J. (3710 Shore Acres Blvd. St. Petersburg FL 33703), Ultrasonic fluid leak detector.
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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] Method of detecting leak of fluid from a long pipeline 원문보기