CA2367877A1 - Method for reducing test cycle time and for improving measuring accuracy at a leak testing process - Google Patents

Method for reducing test cycle time and for improving measuring accuracy at a leak testing process Download PDF

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Publication number
CA2367877A1
CA2367877A1 CA002367877A CA2367877A CA2367877A1 CA 2367877 A1 CA2367877 A1 CA 2367877A1 CA 002367877 A CA002367877 A CA 002367877A CA 2367877 A CA2367877 A CA 2367877A CA 2367877 A1 CA2367877 A1 CA 2367877A1
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CA
Canada
Prior art keywords
container
pressure
exterior
cycle time
cavity
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.)
Granted
Application number
CA002367877A
Other languages
French (fr)
Other versions
CA2367877C (en
Inventor
Martin Lehmann
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.)
Individual
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
Application filed by Individual filed Critical Individual
Publication of CA2367877A1 publication Critical patent/CA2367877A1/en
Application granted granted Critical
Publication of CA2367877C publication Critical patent/CA2367877C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G01M3/32—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 containers, e.g. radiators
    • G01M3/3281—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 containers, e.g. radiators removably mounted in a test cell
    • G01M3/329—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 containers, e.g. radiators removably mounted in a test cell for verifying the internal pressure of closed containers

Abstract

The present invention relates to a method and apparatus for reducing the test cycle time and for improving the measuring accuracy of a leak testing process of a container. The process comprises the steps of providing a pressure difference as an initial predetermined pressure between the exterior of a closed container and the interior of the closed container without destroying the integrity of the container. The pressure exterior to the sealed container is measured for a certain time. This measurement determines the pressure integrity of the closed container. The method also includes the step of minimizing the volume of the exterior of the closed container wherein the size of that volume determines the test cycle time and the measuring accuracy. The invention further comprises a test chamber which is closable and contains a cavity for introducing the container under test. A means is provided for installing or introducing a pressure difference at an initial predetermined value between the exterior of the container under test and the interior of the cavity. A measuring unit is provided for measuring the pressure value which is dependent on the pressure difference and the leakage of the container. The shape of the cavity is at least substantially geometrically similar to the shape of the container so as to minimize the volume of the cavity outside the sealed container under test.
CA002367877A 1989-01-27 1990-01-23 Method for reducing test cycle time and for improving measuring accuracy at a leak testing process Expired - Lifetime CA2367877C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3902435A DE3902435A1 (en) 1989-01-27 1989-01-27 TEST CHAMBER FOR FILLED, SEALED CONTAINERS
DEP3902435.0 1989-01-27
CA002008372A CA2008372C (en) 1989-01-27 1990-01-23 Method for reducing test cycle time and for improving measuring accuracy at a leak testing process

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002008372A Division CA2008372C (en) 1989-01-27 1990-01-23 Method for reducing test cycle time and for improving measuring accuracy at a leak testing process

Publications (2)

Publication Number Publication Date
CA2367877A1 true CA2367877A1 (en) 1990-07-27
CA2367877C CA2367877C (en) 2003-10-14

Family

ID=6372929

Family Applications (3)

Application Number Title Priority Date Filing Date
CA002368847A Expired - Lifetime CA2368847C (en) 1989-01-27 1990-01-23 Method for reducing test cycle time and for improving measuring accuracy at a leak testing process
CA002367877A Expired - Lifetime CA2367877C (en) 1989-01-27 1990-01-23 Method for reducing test cycle time and for improving measuring accuracy at a leak testing process
CA002008372A Expired - Lifetime CA2008372C (en) 1989-01-27 1990-01-23 Method for reducing test cycle time and for improving measuring accuracy at a leak testing process

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002368847A Expired - Lifetime CA2368847C (en) 1989-01-27 1990-01-23 Method for reducing test cycle time and for improving measuring accuracy at a leak testing process

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002008372A Expired - Lifetime CA2008372C (en) 1989-01-27 1990-01-23 Method for reducing test cycle time and for improving measuring accuracy at a leak testing process

Country Status (10)

Country Link
US (1) US5042291A (en)
EP (2) EP0628801B1 (en)
JP (2) JP3104976B2 (en)
AT (2) ATE143134T1 (en)
CA (3) CA2368847C (en)
DE (3) DE3902435A1 (en)
DK (2) DK0379986T3 (en)
ES (2) ES2093481T3 (en)
GR (2) GR3015790T3 (en)
HK (2) HK1006746A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5333491A (en) * 1989-01-27 1994-08-02 Martin Lehmann Method for reducing test cycle time and for improving measuring accuracy at a leak testing process
US5497654A (en) * 1989-01-27 1996-03-12 Lehmann; Martin Method and apparatus for leak testing a container
US5199296A (en) * 1989-01-27 1993-04-06 Martin Lehmann Method for reducing test cycle time and for improving measuring accuracy at a leak testing process
US5333492A (en) * 1990-03-20 1994-08-02 Product Suppliers Ag Process and apparatus for leak-testing a package
US5345814A (en) * 1990-12-28 1994-09-13 Whirlpool Corporation Method and apparatus for testing vacuum insulation panel quality
US5226316A (en) * 1992-03-20 1993-07-13 Oscar Mayer Foods Corporation Package leak detection
US5513516A (en) * 1992-05-01 1996-05-07 Visi-Pack, Inc. Method and apparatus for leak testing a container
AU699979B2 (en) * 1993-11-18 1998-12-17 Martin Lehmann Method of leak testing
DE19642099A1 (en) * 1996-10-12 1998-04-16 Leybold Vakuum Gmbh Testing the tightness of packaging
EP0786655B1 (en) * 1997-05-07 2002-07-24 Martin Lehmann Procedure for leak testing of closed containers, test chamber, device and installation therefor
US6082184A (en) * 1997-05-27 2000-07-04 Martin Lehmann Method for leak testing and leak testing apparatus
US6308556B1 (en) 1999-12-17 2001-10-30 Atc, Inc. Method and apparatus of nondestructive testing a sealed product for leaks
US6584828B2 (en) 1999-12-17 2003-07-01 Atc, Inc. Method and apparatus of nondestructive testing a sealed product for leaks
US6450011B1 (en) * 2000-11-24 2002-09-17 Mocon, Inc. Pressure measurement method for gas leakage from sealed packages
US6513366B1 (en) 2001-10-11 2003-02-04 Packaging Technologies & Inspection Llc Method and apparatus for package leak testing
EP1647802B1 (en) * 2003-07-17 2016-03-16 Santen Pharmaceutical Co., Ltd. Hole inspection system for holed container
CN1997881B (en) * 2005-01-10 2010-09-22 膜康公司 Instrument and method for detecting leaks in hermetically sealed packaging
EP1848967B1 (en) 2005-02-02 2012-02-08 Mocon, Inc. Instrument and method for detecting and reporting the size of leaks in hermetically sealed packaging
WO2006088542A2 (en) 2005-02-14 2006-08-24 Mocon, Inc. Detecting and reporting the location of a leak in hermetically sealed packaging
EP2502043B1 (en) * 2009-11-20 2018-03-07 Packaging Technologies & Inspection LLC At rest vacuum state for vacuum decay leak testing method and system
JP4924745B2 (en) * 2010-08-12 2012-04-25 東洋製罐株式会社 Sealed container sealing inspection method and inspection apparatus
KR101223348B1 (en) * 2011-05-26 2013-01-16 금오공과대학교 산학협력단 Apparatus of monitoring vaccum chamber for menufacturing solar cell
JP5673513B2 (en) * 2011-12-02 2015-02-18 東洋製罐株式会社 Sealed container sealing inspection method and inspection apparatus
NL2009394C2 (en) * 2012-08-30 2014-03-03 A T Smit Holding Apparatus and method for testing leak tightness of a package.
ITBO20130128A1 (en) * 2013-03-26 2014-09-27 Bonfiglioli Engineering S P A METHOD AND APPARATUS FOR SYRINGE BODY VERIFICATION.
CN104236826B (en) * 2014-09-26 2017-06-13 清华大学 The device for detecting sealability and method of airbag product
US10545067B2 (en) * 2015-02-09 2020-01-28 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Method and system for testing airtightness of a building envelope
DE102018111600A1 (en) * 2018-05-15 2019-11-21 Multivac Sepp Haggenmüller Se & Co. Kg METHOD FOR DETECTING LEAKAGE

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL91317C (en) * 1958-08-07 1959-06-15
CH395584A (en) * 1961-08-28 1965-07-15 Hesser Ag Maschf Method and device for the non-destructive testing of packs for air and gas tightness
US3177704A (en) * 1962-08-28 1965-04-13 Robert H Stange Leak testing method
US3517548A (en) * 1968-06-20 1970-06-30 Avco Corp Means for and method of detecting leaks in the seal of a component
DE2009197A1 (en) * 1970-02-27 1971-09-09 Volkswagenwerk Ag Gas leak testing device
CH524139A (en) * 1970-05-29 1972-06-15 Alusuisse Device for testing seams of containers closed with foils
US3795137A (en) * 1972-09-12 1974-03-05 Johnson & Son Inc S C Leak detection apparatus for aerosol containers
SE368867B (en) * 1973-10-10 1974-07-22 G Bergstrand
JPS5834337A (en) * 1981-08-25 1983-02-28 Dainippon Printing Co Ltd Inspecting device for leakage of vessel
DE8128651U1 (en) * 1981-09-30 1983-03-31 Unilever N.V., 3000 Rotterdam DEVICE FOR NON-DESTRUCTIVE LEAK DETECTION ON SOFT PACKS
JPS61246648A (en) * 1985-04-24 1986-11-01 Toppan Printing Co Ltd Leakage inspection apparatus
US4791805A (en) * 1985-06-07 1988-12-20 Expertek, Inc. Fuel tank leak detection apparatus
DE3528248A1 (en) * 1985-08-07 1987-02-19 Jagenberg Ag METHOD AND DEVICE FOR CONTROLLING THE TIGHTNESS OF FILLED BY A SEALED OR WELDED LID OD. DGL. LOCKED CONTAINER
US4667506A (en) * 1985-12-02 1987-05-26 Crown Cork & Seal Canada Inc. High pressure container tester

Also Published As

Publication number Publication date
GR3021191T3 (en) 1996-12-31
CA2368847A1 (en) 1990-07-27
EP0379986A3 (en) 1991-10-23
JPH02232543A (en) 1990-09-14
EP0628801A3 (en) 1995-02-01
HK1006876A1 (en) 1999-03-19
EP0628801A2 (en) 1994-12-14
JP3093188B2 (en) 2000-10-03
JPH11218462A (en) 1999-08-10
CA2367877C (en) 2003-10-14
DE59010512D1 (en) 1996-10-24
ES2070198T3 (en) 1995-06-01
ES2093481T3 (en) 1996-12-16
EP0379986B1 (en) 1995-03-29
ATE120542T1 (en) 1995-04-15
DK0628801T3 (en) 1996-12-23
US5042291A (en) 1991-08-27
CA2008372A1 (en) 1990-07-27
JP3104976B2 (en) 2000-10-30
EP0379986A2 (en) 1990-08-01
CA2368847C (en) 2003-10-14
HK1006746A1 (en) 1999-03-12
ATE143134T1 (en) 1996-10-15
DE3902435A1 (en) 1990-08-02
DE59008780D1 (en) 1995-05-04
CA2008372C (en) 2003-10-14
GR3015790T3 (en) 1995-07-31
DK0379986T3 (en) 1995-08-28
EP0628801B1 (en) 1996-09-18

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