CA1073756A - Linebreak detection system - Google Patents

Linebreak detection system

Info

Publication number
CA1073756A
CA1073756A CA285,675A CA285675A CA1073756A CA 1073756 A CA1073756 A CA 1073756A CA 285675 A CA285675 A CA 285675A CA 1073756 A CA1073756 A CA 1073756A
Authority
CA
Canada
Prior art keywords
valve
output
timer
pilot
pressure drop
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA285,675A
Other languages
English (en)
French (fr)
Inventor
Howard L. Ledeen
Franz Schmon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LEDEEN FLOW CONTROL SYSTEMS
Original Assignee
LEDEEN FLOW CONTROL SYSTEMS
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 LEDEEN FLOW CONTROL SYSTEMS filed Critical LEDEEN FLOW CONTROL SYSTEMS
Application granted granted Critical
Publication of CA1073756A publication Critical patent/CA1073756A/en
Expired legal-status Critical Current

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
    • G01M3/2815—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 using pressure measurements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0318—Processes
    • Y10T137/0324—With control of flow by a condition or characteristic of a fluid
    • Y10T137/0379—By fluid pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7723—Safety cut-off requiring reset

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Pipeline Systems (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Fluid-Pressure Circuits (AREA)
CA285,675A 1976-08-30 1977-08-29 Linebreak detection system Expired CA1073756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/718,757 US4051715A (en) 1976-08-30 1976-08-30 Linebreak detection system

Publications (1)

Publication Number Publication Date
CA1073756A true CA1073756A (en) 1980-03-18

Family

ID=24887399

Family Applications (1)

Application Number Title Priority Date Filing Date
CA285,675A Expired CA1073756A (en) 1976-08-30 1977-08-29 Linebreak detection system

Country Status (5)

Country Link
US (1) US4051715A (index.php)
JP (1) JPS5330027A (index.php)
CA (1) CA1073756A (index.php)
GB (1) GB1529556A (index.php)
NL (1) NL179161C (index.php)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE445951B (sv) * 1981-08-21 1986-07-28 Stal Laval Turbin Ab Forfaringssett for indikering av leckor i tuber och tubinfestningar vid vermevexlare/kondensorer
GB2120794B (en) * 1982-05-27 1985-11-27 Gasguard Limited Pipework testing apparatus
US4807661A (en) * 1987-12-04 1989-02-28 Joel Lewis Fluid control valve
FR2667937B1 (fr) * 1990-10-15 1995-03-10 Cit Alcatel Detecteur de fuite a gaz traceur.
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
US6012482A (en) * 1997-01-30 2000-01-11 Djt Products, Inc. Line break detector for pressurized fluid pumping systems
US7677267B2 (en) * 2007-02-02 2010-03-16 Georgia-Pacific Wood Products Llc Dunnage airbag inflation circuit
US9969315B2 (en) 2014-06-30 2018-05-15 Signode Industrial Group Llc Pneumatic inflator for automatically inflating inflatable articles to a desired pressure
US9921126B2 (en) * 2015-08-31 2018-03-20 Advanced Test Concepts, Llc Large volume test apparatuses and methods for detection of small defects

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS5247703B2 (index.php) * 1972-06-05 1977-12-05
JPS5247704B2 (index.php) * 1972-06-09 1977-12-05
JPS5247706B2 (index.php) * 1972-09-27 1977-12-05
JPS5247705B2 (index.php) * 1972-09-28 1977-12-05
US3884077A (en) * 1973-06-01 1975-05-20 Southwestern Manufacturing Co Rate of pressure change sensing system

Also Published As

Publication number Publication date
NL179161B (nl) 1986-02-17
US4051715A (en) 1977-10-04
GB1529556A (en) 1978-10-25
JPS5330027A (en) 1978-03-20
JPS567115B2 (index.php) 1981-02-16
NL7709013A (nl) 1978-03-02
NL179161C (nl) 1986-07-16

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Legal Events

Date Code Title Description
MKEX Expiry