[특허]Method of detecting leaks in liquid storage tanks

[미국특허] Method of detecting leaks in liquid storage tanks 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01M-003/30
출원번호	US-0806628 (1985-12-09)
발명자 / 주소	Horner John A. (387 River Dr. Lagoon Beach Bay City MI 48706)
인용정보	피인용 횟수 : 8 인용 특허 : 9

초록 ▼

A method of detecting leaks in hazardous liquid tanks, such as underground gasoline tanks connected with a fuel pump withdrawal system, and having a fuel supply line and a vent pipe to atmosphere. The tank is filled incompletely such that there is a space or volume left in the tank above the liquid level in the tank. The space above the liquid level is then filled with a gas under pressure, which maintains a predetermined regulated pressure on the liquid in the tank from one end of the tank to the other. Next, a continuous stream of gas is forced into the liquid near the bottom of the tank to reflect the resistance or back pressure to gas introduction as influenced by the head of the liquid in the tank. The static pressure of the gas in the space above the liquid, to which the gas proceeds in a continuous flow of bubbles, is balanced as a reference pressure against the pressure required to continuously bubble air at the predetermined depth, and any differential variation is noted on an indicator such as a chart recorder.

대표청구항 ▼

A method of detecting leaks in liquid storage tanks and the like having tank bodies with projecting fill and vent pipes, which are connected with a liquid withdrawal system which is normally closed to atmosphere, and are filled only to an extent to leave a top space in the body of the tank above the liquid surface level; the steps of: a. filling the space in the body of the tank above the liquid level with a gas under a gaseous pressure greater than atmospheric pressure to maintain a predetermined pressure on the liquid surface in the tank from one end of the body of the tank to the other while maintaining the pipes empty of liquid and isolated from the pressure of the atmosphere; b. forcing a continuous stream of bubbles of gas into the lower portion of the liquid in the tank to reflect the resistance to gas introduction as influenced by the composite effect of the pressure of the gas on the said surface and the head of liquid at the level of gas introduction; c. bleeding off from the tank the gas bubbles introduced, and d. monitoring the gas pressure required to flow a continuous stream of bubbles of the gas at the level of gas introduction, and indicating any variation therein over a test time period.

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

Mooney Joseph R. (33 Hawk St. New Orleans LA 70124), Device for and method of detecting leaks in a liquid storage reservoir.
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Kukuruzinski Raymond (88 Clinton Place Hackensack NJ 07601), Disposable clinical thermometer.
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Rowe ; Charles L. ; Lewis ; Ronald A., Disposable thermometer.
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Horner John A. (211 E. Grove St. Kawkawlin MI 48631), Leak detector.
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Ainlay John A. (3330 Grant St. Evanston IL 60201), Leak detector for underground storage tanks.
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Mooney Joseph R. (33 Hawk St. New Orleans LA 70124), Means and method of sensing temperature.
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Templin Manfred (Feldhausweg 10 4006 Erkrath 1 DEX), Measuring instrument.
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Holmen Hans Kristian (Voyenenga NO), Method and apparatus for exact measurement of pressures by means of level or pressure measuring equipment of the bubble.
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Hansel William B. (Media PA) Smith Earl W. (Wilmington DE), Method for leakage measurement.
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이 특허를 인용한 특허 (8) 인용/피인용 타임라인 분석

Schuster Peter A. (211 E. Grover Kawkawlin MI 48631), Constant level leak detection apparatus and method.
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Tubergen Gary A. (Frederick County MD), Diagnostic device for determining the pneumatic health of a bubble-type fuel measuring system.
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Giebler Fritz,DEX, Infusion hose for an infusion device with a bubble detector.
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Smaidris, Thomas F.; Boyd, James Marion; Manchester, Darrell Lee; Valenti, Gregory Louis, Liquid level determination system.
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Montgomery Joe M., Pipeline leak detector.
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Nee Victor W. (South Bend IN), System and method for detecting liquid leakage in storage tanks.
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Horner John A. (387 River Dr. Lagoon Beach ; Bay City MI 48710), System for detecting leaks in underground fuel tanks and the like.
상세보기
Mastandrea John R. (Rancho Palos Verdes CA), Volumetric leak detection system for underground storage tanks and the like.
상세보기

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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 leaks in liquid storage tanks 원문보기