SE9303941L - Method and apparatus for checking leakage from a closed container - Google Patents

Method and apparatus for checking leakage from a closed container

Info

Publication number
SE9303941L
SE9303941L SE9303941A SE9303941A SE9303941L SE 9303941 L SE9303941 L SE 9303941L SE 9303941 A SE9303941 A SE 9303941A SE 9303941 A SE9303941 A SE 9303941A SE 9303941 L SE9303941 L SE 9303941L
Authority
SE
Sweden
Prior art keywords
circuit board
printed circuit
container
conductors
excess pressure
Prior art date
Application number
SE9303941A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9303941D0 (en
SE501693C2 (en
Inventor
Ingvar Lindgren
Rolf Schopfer
Bertil Ritzling
Original Assignee
Aaf Industriteknik Ab
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 Aaf Industriteknik Ab filed Critical Aaf Industriteknik Ab
Priority to SE9303941A priority Critical patent/SE501693C2/en
Publication of SE9303941D0 publication Critical patent/SE9303941D0/en
Priority to AU11263/95A priority patent/AU1126395A/en
Priority to PCT/SE1994/001132 priority patent/WO1995014915A1/en
Publication of SE9303941L publication Critical patent/SE9303941L/en
Publication of SE501693C2 publication Critical patent/SE501693C2/en

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
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/186—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
    • G01M3/187—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators for flexible or elastic containers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0266—Marks, test patterns or identification means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention relates to a method and an apparatus for checking leakages in a closed container having at least one flexible wall. According to the method, in a first operation a container (1) is disposed with one of its edge surfaces or sides (6) engaging against a printed circuit board (5), which has at least two conductors (7, 8) in closely spaced relationship facing towards the container (1), a first excess pressure being generated in it for a given time interval, subsequent to which it is turned over or twisted round in a second operation, and a second excess pressure is generated in it, thus achieving, in the case of a leaking container, that the contents in the portion of the container (1) covered by the contents are pressed outwards, and in contact with the printed circuit board result in that decreased resistance can be indicated in the circuit formed by the conductors on the printed circuit board, thus indicating leakage. The inventive apparatus includes a printed circuit board (5), against which a container (1) to be tested may be placed, and which is provided with at least two conductors (7, 8), a means (12) coacting with the printed circuit board for generating an excess pressure, and at least one indicating means (11) for determining change in resistance in the conductors (7, 8) extending on the printed circuit board (5).
SE9303941A 1993-11-26 1993-11-26 Method and apparatus for checking leakage from a closed container SE501693C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9303941A SE501693C2 (en) 1993-11-26 1993-11-26 Method and apparatus for checking leakage from a closed container
AU11263/95A AU1126395A (en) 1993-11-26 1994-11-25 A method and an apparatus for controlling leakage from a closed container
PCT/SE1994/001132 WO1995014915A1 (en) 1993-11-26 1994-11-25 A method and an apparatus for controlling leakage from a closed container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9303941A SE501693C2 (en) 1993-11-26 1993-11-26 Method and apparatus for checking leakage from a closed container

Publications (3)

Publication Number Publication Date
SE9303941D0 SE9303941D0 (en) 1993-11-26
SE9303941L true SE9303941L (en) 1995-04-24
SE501693C2 SE501693C2 (en) 1995-04-24

Family

ID=20391909

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9303941A SE501693C2 (en) 1993-11-26 1993-11-26 Method and apparatus for checking leakage from a closed container

Country Status (3)

Country Link
AU (1) AU1126395A (en)
SE (1) SE501693C2 (en)
WO (1) WO1995014915A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007109709A2 (en) * 2006-03-22 2007-09-27 Levtech, Inc. Apparatus and methods for leak detection in bioprocessing bags
US20070295060A1 (en) * 2006-06-13 2007-12-27 Delgado Juan C Ampoule card leak detector assembly
WO2013103649A1 (en) * 2012-01-03 2013-07-11 Abbott Laboratories Device for detecting leaks in packages

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876321A (en) * 1958-04-07 1959-03-03 Honeywell Regulator Co Humidity responsive resistor
DE2038332A1 (en) * 1970-08-01 1972-02-10 Licentia Gmbh Testing device for leak testing
DD107342A1 (en) * 1972-09-18 1974-07-20
FR2425636A1 (en) * 1978-05-11 1979-12-07 Carbonisation Entr Ceram Detecting liq. metal leaks along pipes in nuclear reactors - by change in resistance of wires buried in refractory insulating fabric placed around pipe
GB2187872A (en) * 1986-03-14 1987-09-16 Stanley Whiston Leakage detector
GB8811653D0 (en) * 1988-05-17 1988-06-22 White P D Lenk detector
IT1220371B (en) * 1988-05-20 1990-06-15 P M System Srl METHOD FOR CHECKING THE SEALING OF THE WELDING OF SINGLE-DOSE VIALS OF THERMOPLASTIC MATERIAL OBTAINED CONNECTED TOGETHER IN MULTIPLE UNITS AND EQUIPMENT FOR THE IMPLEMENTATION OF THE METHOD
SE462407B (en) * 1988-11-07 1990-06-18 Alfastar Ab DEVICE FOR THE DETECTION OF LEAKAGE IN A PART OF A RELATIVE DEVICE MOVING

Also Published As

Publication number Publication date
WO1995014915A1 (en) 1995-06-01
SE9303941D0 (en) 1993-11-26
AU1126395A (en) 1995-06-13
SE501693C2 (en) 1995-04-24

Similar Documents

Publication Publication Date Title
DK0781406T3 (en) Position detectable strip for analyte detection
DE69422607D1 (en) METHOD FOR MOUNTING A PIEZOELECTRIC ELEMENT ON A SUBSTRATE
ATE214476T1 (en) METHOD FOR APPLYING A MICROSYSTEM OR TRANSDUCER TO A SUBSTRATE AND DEVICE PRODUCABLE BY THIS METHOD
PT1060540E (en) CLOTHING DEVICE
MY104394A (en) Function inspecting system
EP0080366A3 (en) Printed circuit board locating apparatus
KR910006736A (en) Electronic component inspection device
NO167169C (en) VOLUME MEASUREMENT AND DEVICE.
SE9303941D0 (en) Method and apparatus for checking leakage from a closed container
ATE332507T1 (en) METHOD AND DEVICE FOR FAULT LOCATION
EP0633478A3 (en) Method and device for testing electronic circuit boards.
SE7611498L (en) ELECTRICAL TEST DEVICE
MY116168A (en) Failure diagnostic apparatus
GB2351400A (en) Water resistant electrical connector
ATE186123T1 (en) METHOD AND DEVICE FOR EXTRACTING CONNECTION AREAS IN THE B-LIGHT SCREEN IMAGE
ES536074A0 (en) A SIGNAL GENERATOR
KR870006716A (en) Digital level detection circuit
EP0618453A3 (en) Method of testing circuit boards and device for carrying out the method.
ATE264237T1 (en) PACKAGING WITH TEST FUNCTION
SE8803135L (en) APPARATUS AND METHOD MUST ACHIEVE A SEARCH BETWEEN EACH INSERTABLE DETAILS AND APPLICATION OF THIS SEARCH
KR900016857A (en) Clear blue circuit
SE9602486L (en) Method for checking and mounting electronic surface mounting components
FR2490350B1 (en) CONNECTION DEVICE FOR PROVIDING A SEALED CONNECTION BETWEEN AN ELECTRONIC CIRCUIT AND A TEST APPARATUS, AND TEST APPARATUS USING SUCH A DEVICE
JPS5734775A (en) High voltage supplying device
KR950001964A (en) Wire bonding method and apparatus

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 9303941-0

Format of ref document f/p: F