CA1326891C - Detecteur d'hydrocarbures - Google Patents

Detecteur d'hydrocarbures

Info

Publication number
CA1326891C
CA1326891C CA000514348A CA514348A CA1326891C CA 1326891 C CA1326891 C CA 1326891C CA 000514348 A CA000514348 A CA 000514348A CA 514348 A CA514348 A CA 514348A CA 1326891 C CA1326891 C CA 1326891C
Authority
CA
Canada
Prior art keywords
swellable
fluid
swellable member
conductive
swells
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 - Lifetime
Application number
CA000514348A
Other languages
English (en)
Inventor
John Lahlouh
Ray F. Stewart
Robert S. Wasley
Paul D. Hauptly
Larry M. Welsh
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.)
TE Connectivity Corp
Original Assignee
Individual
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
Priority claimed from US06/838,725 external-priority patent/US4926165A/en
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA1326891C publication Critical patent/CA1326891C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
    • 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
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/165—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means by means of cables or similar elongated devices, e.g. tapes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
CA000514348A 1985-10-15 1986-07-22 Detecteur d'hydrocarbures Expired - Lifetime CA1326891C (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US78727885A 1985-10-15 1985-10-15
US06/838,725 US4926165A (en) 1985-10-15 1986-03-11 Devices for detecting and obtaining information about an event
US838,725 1986-03-11
US787,278 1991-11-04

Publications (1)

Publication Number Publication Date
CA1326891C true CA1326891C (fr) 1994-02-08

Family

ID=27120636

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000514348A Expired - Lifetime CA1326891C (fr) 1985-10-15 1986-07-22 Detecteur d'hydrocarbures

Country Status (1)

Country Link
CA (1) CA1326891C (fr)

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Legal Events

Date Code Title Description
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Effective date: 20110208