NO753556L - - Google Patents

Info

Publication number
NO753556L
NO753556L NO753556A NO753556A NO753556L NO 753556 L NO753556 L NO 753556L NO 753556 A NO753556 A NO 753556A NO 753556 A NO753556 A NO 753556A NO 753556 L NO753556 L NO 753556L
Authority
NO
Norway
Prior art keywords
output signal
change
rate
pressure
pipeline
Prior art date
Application number
NO753556A
Other languages
English (en)
Norwegian (no)
Inventor
M T Covington
S M Griffin
Original Assignee
Shafer Valve Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shafer Valve Co filed Critical Shafer Valve Co
Publication of NO753556L publication Critical patent/NO753556L/no

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Pipeline Systems (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Measuring Fluid Pressure (AREA)
NO753556A 1974-12-09 1975-10-22 NO753556L (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/530,709 US4012944A (en) 1974-12-09 1974-12-09 Electronic fluid pipeline leak detector and method

Publications (1)

Publication Number Publication Date
NO753556L true NO753556L (ja) 1976-06-10

Family

ID=24114665

Family Applications (1)

Application Number Title Priority Date Filing Date
NO753556A NO753556L (ja) 1974-12-09 1975-10-22

Country Status (14)

Country Link
US (1) US4012944A (ja)
JP (1) JPS5168885A (ja)
AT (1) AT358885B (ja)
AU (1) AU503898B2 (ja)
BE (1) BE836198A (ja)
BR (1) BR7507851A (ja)
CA (1) CA1096009A (ja)
DE (1) DE2552440A1 (ja)
FR (1) FR2294389A1 (ja)
GB (3) GB1535919A (ja)
IT (1) IT1049985B (ja)
NL (1) NL7514364A (ja)
NO (1) NO753556L (ja)
SE (1) SE419265B (ja)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4144743A (en) * 1974-12-09 1979-03-20 Shafer Valve Company Electronic fluid pipeline leak detector and method
US4198855A (en) * 1978-03-06 1980-04-22 The Japan Steel Works Ltd. Line break detector
JPS6027372B2 (ja) * 1979-06-11 1985-06-28 工業技術院長 パイプラインの漏洩個所推定装置
US4280356A (en) * 1979-07-13 1981-07-28 Shell Oil Company Pipeline leak detection
DE3009549C2 (de) * 1979-07-18 1987-01-15 Walter 2000 Hamburg Nicolai Einrichtung zur selbsttätigen Anzeige von Mengenänderungen in Flüssigkeitsbehältern
DE3720345A1 (de) * 1987-06-19 1988-12-29 Sewerin Hermann Gmbh Verfahren zur frueherkennung von leckstellen in einem wasserrohrnetz
GB8716032D0 (en) * 1987-07-08 1987-08-12 British Telecomm Duct testing
US4876530A (en) * 1987-10-13 1989-10-24 The Marley Company Method and apparatus for detecting leakage in fuel storage and delivery systems
US5089997A (en) * 1990-11-02 1992-02-18 Pasar, Inc. Ultrasonic energy detector with frequency and amplitude indications and background noise reduction
US5272646A (en) * 1991-04-11 1993-12-21 Farmer Edward J Method for locating leaks in a fluid pipeline and apparatus therefore
US5398542A (en) * 1992-10-16 1995-03-21 Nkk Corporation Method for determining direction of travel of a wave front and apparatus therefor
US5388445A (en) * 1992-10-16 1995-02-14 Nkk Corporation Method for determining arrival and amplitude of a wave front and apparatus therefor
US5317899A (en) * 1992-12-11 1994-06-07 Control Engineers, Inc. Method for detecting leaks in underground product lines
US5361622A (en) * 1993-09-09 1994-11-08 The Shafer Valve Company Device and method for detection of leaks in pressurized fluid vessels
US5437180A (en) * 1993-11-19 1995-08-01 Sowinski; Richard F. Detection of natural gas within a customer's domain
US5515715A (en) * 1993-11-19 1996-05-14 Sowinski; Richard F. Method and means for filtering contaminants from a gas stream to aid detection
JPH06340384A (ja) * 1994-06-21 1994-12-13 Hitachi Building Syst Eng & Service Co Ltd エレベータの乗かご
US5526679A (en) * 1995-01-05 1996-06-18 Campo/Miller Automatically calibrated pressurized piping leak detector
US5637788A (en) * 1995-08-03 1997-06-10 Motorola Inc. Apparatus and method of detecting a leak in an evaporative emissions system
US5854422A (en) * 1996-07-10 1998-12-29 K-Line Industries, Inc. Ultrasonic detector
EP1127256A1 (en) * 1998-10-07 2001-08-29 Paavo Halmekytö Consulting Oy Method for determination of leaks in tap water systems
US6880383B2 (en) * 2003-05-14 2005-04-19 General Motors Corporation Apparatus and method for fuel vapor leak detection
US7051579B2 (en) * 2004-05-11 2006-05-30 Franklin Fueling Systems, Inc. Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines
US7334456B2 (en) * 2004-05-11 2008-02-26 Franklin Fueling Systems, Inc. Method and apparatus for continuously monitoring interstitial regions in gasoline storage facilities and pipelines
US7438060B2 (en) * 2006-11-17 2008-10-21 General Motors Corporation System for detecting purge valve malfunction
JP5171135B2 (ja) * 2007-07-09 2013-03-27 東光東芝メーターシステムズ株式会社 ガス漏洩検知装置とその方法
US9146184B1 (en) * 2008-11-06 2015-09-29 AnC Precision Machining Inc. Plastic tube sealing and test system
US9146172B2 (en) * 2011-01-03 2015-09-29 Sentinel Hydrosolutions, Llc Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection
RU2576548C2 (ru) * 2014-07-31 2016-03-10 Вячеслав Адамович Заренков Способ контроля состояния конструкции здания или инженерно-строительного сооружения и устройство для его осуществления
GB2551378A (en) * 2016-06-16 2017-12-20 Bentley Motors Ltd Method of assessing damage to composite members

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3628563A (en) * 1968-12-10 1971-12-21 Tokyo Shibaura Electric Co Explosion detecting means for a fluid pipeline
DE1922986C3 (de) * 1969-05-06 1975-09-18 Erdoel-Raffinerie Mannheim Gmbh, 6800 Mannheim Verfahren zur Lecküberwachung von Flüssigkeitsleitungen
US3612081A (en) * 1970-08-17 1971-10-12 Textron Inc Apparatus and method for monitoring a fluid pressure system
US3665945A (en) * 1971-02-03 1972-05-30 M & J Valve Co Valve control system and method
BE813100A (fr) * 1974-03-29 1974-07-15 Dispositif detecteur de variations finies unidirectionnelles d'un signal electrique.

Also Published As

Publication number Publication date
IT1049985B (it) 1981-02-10
GB1535920A (en) 1978-12-13
GB1535918A (en) 1978-12-13
DE2552440A1 (de) 1976-06-10
FR2294389B1 (ja) 1980-08-29
AT358885B (de) 1980-10-10
BE836198A (fr) 1976-04-01
FR2294389A1 (fr) 1976-07-09
GB1535919A (en) 1978-12-13
USB530709I5 (ja) 1976-04-06
BR7507851A (pt) 1976-08-24
SE419265B (sv) 1981-07-20
ATA929275A (de) 1980-02-15
JPS5168885A (ja) 1976-06-14
CA1096009A (en) 1981-02-17
SE7513788L (sv) 1976-06-10
NL7514364A (nl) 1976-06-11
AU8585975A (en) 1977-04-28
AU503898B2 (en) 1979-09-27
US4012944A (en) 1977-03-22

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