CA2226653A1 - On demand useful life indicator - Google Patents

On demand useful life indicator

Info

Publication number
CA2226653A1
CA2226653A1 CA2226653A CA2226653A CA2226653A1 CA 2226653 A1 CA2226653 A1 CA 2226653A1 CA 2226653 A CA2226653 A CA 2226653A CA 2226653 A CA2226653 A CA 2226653A CA 2226653 A1 CA2226653 A1 CA 2226653A1
Authority
CA
Canada
Prior art keywords
layer
indicator
useful life
indicating material
ambient fluid
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
CA2226653A
Other languages
French (fr)
Other versions
CA2226653C (en
Inventor
Joseph W. Ramsey
Peter L. Gill
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 CA2226653A1 publication Critical patent/CA2226653A1/en
Application granted granted Critical
Publication of CA2226653C publication Critical patent/CA2226653C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/26—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving oxidoreductase
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
    • G01N31/223—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
    • G01N31/223—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols
    • G01N31/225—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols for oxygen, e.g. including dissolved oxygen

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Biophysics (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Zoology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Wood Science & Technology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Dispersion Chemistry (AREA)
  • Microbiology (AREA)
  • Genetics & Genomics (AREA)
  • General Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biotechnology (AREA)
  • Emergency Medicine (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

An improved indicator (10) includes a base member (12); an indicating material layer (14); an adhesive layer (16); and a layered covering material (18). The indicating material layer (14) provides a visual indication when exposed to a selected component of an ambient fluid and is applied to one side of the impermeable base member (12) in a selected pattern. The adhesive layer (16) is made of an impermeable material and applied in a selected pattern over the indicating material layer (14) leaving one selected portion of the indicating material (14) exposed to the ambient fluid. An inner layer (22) of the co-layered cover member (18) is permeable to the ambient fluid. The useful life indicator (10) remains in a selected state of dormancy until an outer layer (20) of the co-layered cover member (18) is removed. The indicator (10) may include a self-contained norm of visual indication.
CA002226653A 1995-07-25 1996-07-18 On demand useful life indicator Expired - Fee Related CA2226653C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/506,334 1995-07-25
US08/506,334 US5630372A (en) 1995-07-25 1995-07-25 On demand useful life indicator
PCT/US1996/012103 WO1997005481A1 (en) 1995-07-25 1996-07-18 On demand useful life indicator

Publications (2)

Publication Number Publication Date
CA2226653A1 true CA2226653A1 (en) 1997-02-13
CA2226653C CA2226653C (en) 1999-12-14

Family

ID=24014178

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002226653A Expired - Fee Related CA2226653C (en) 1995-07-25 1996-07-18 On demand useful life indicator

Country Status (6)

Country Link
US (1) US5630372A (en)
AU (1) AU6593496A (en)
CA (1) CA2226653C (en)
DE (1) DE19681506T1 (en)
GB (1) GB2317695B (en)
WO (1) WO1997005481A1 (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5797344A (en) * 1997-03-13 1998-08-25 Ramsey; Joseph W. On-demand useful life indicator and method of making same
AU3056197A (en) * 1997-05-12 1998-12-08 Minnesota Mining And Manufacturing Company Time indicator based on carbon dioxide production
AU1166999A (en) * 1997-12-05 1999-06-28 Crown Cork & Seal Technologies Corporation Shelf life indicator
US6536370B2 (en) * 1998-11-25 2003-03-25 Advanced Micro Devices, Inc. Elapsed time indicator for controlled environments and method of use
GB2347350B (en) * 1999-02-27 2000-11-01 Reckitt & Colmann Prod Ltd A method for indicating the useful life of a volatile agent
AU2001275964A1 (en) * 2000-07-19 2002-01-30 Ira Schwartz Expiration date system
US7185601B2 (en) * 2001-03-01 2007-03-06 Micron Technology, Inc. Chemically sensitive warning apparatus and method
US7808861B2 (en) * 2001-07-17 2010-10-05 Abraham Wien Expiration date system
US20030235119A1 (en) * 2001-07-17 2003-12-25 Abraham Wien Expiration date system
US7071783B2 (en) * 2002-07-19 2006-07-04 Micro Mobio Corporation Temperature-compensated power sensing circuit for power amplifiers
US7434535B2 (en) * 2003-12-31 2008-10-14 Church & Dwight Co., Inc. Timing device
JP2008510987A (en) * 2004-08-24 2008-04-10 スカイラド エルティーディー． Temperature sensing product indicating device
US20120032117A1 (en) 2005-04-29 2012-02-09 Ambrozy Rel S Stimulus indicating device employing polymer gels
US7940605B2 (en) * 2005-04-29 2011-05-10 Prasidiux, Llc Stimulus indicating device employing polymer gels
US8166906B2 (en) 2005-04-29 2012-05-01 Ambrozy Rel S Stimulus indicating device employing polymer gels
EP1877761A4 (en) * 2005-04-29 2010-03-24 Rel S Ambrozy Stimulus indication employing polymer gels
US8077554B2 (en) 2005-04-29 2011-12-13 Ambrozy Rel S Stimulus indicating device employing polymer gels
US9182292B2 (en) 2005-04-29 2015-11-10 Prasidiux, Llc Stimulus indicating device employing polymer gels
US20060260533A1 (en) * 2005-05-19 2006-11-23 Thomas Parias Expiration warning patch for gas expiration date management
MX2009009601A (en) * 2007-03-09 2009-10-19 S & C Electric Co Wear indicator for a circuit interrupter exhaust control device.
JP2010045140A (en) * 2008-08-11 2010-02-25 Nec Electronics Corp Lead frame, method of manufacturing the same, and method of manufacturing semiconductor device
NL1038939C2 (en) * 2011-07-12 2013-01-15 Innovation Desk DEVICE FOR INDICATING AN EXPIRED TIME PERIOD AND ITS USE.
WO2013130755A1 (en) * 2012-02-29 2013-09-06 Firestone Industrial Products Company, Llc Replacement indicator, elastomeric articles and methods
GB201217720D0 (en) * 2012-10-03 2012-11-14 Insignia Technologies Ltd Indicator device
GB201303518D0 (en) * 2013-02-27 2013-04-10 Insignia Technologies Ltd Indicator device
CN105954280B (en) * 2016-06-17 2019-02-22 深圳九星印刷包装集团有限公司 Alkali sensitivity discoloration instruction device
CN106124492A (en) * 2016-06-17 2016-11-16 深圳九星印刷包装集团有限公司 Alkali sensitization time instruction device
CN105911059B (en) * 2016-06-17 2019-02-15 深圳九星印刷包装集团有限公司 Acid-sensitive discoloration instruction device
CN106153620A (en) * 2016-06-17 2016-11-23 深圳九星印刷包装集团有限公司 Acid-sensitive time-indicating arrangement
GB2593454B (en) * 2020-03-18 2022-08-24 Insignia Tech Ltd Indicator film

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3018611A (en) * 1962-01-30 Timer device and method for determination
US2918893A (en) * 1955-11-17 1959-12-29 Clyde A Norton Leakage indicator for liquid fuel systems
US2918033A (en) * 1957-10-10 1959-12-22 Martin J Snyder Pipe leakage detector
US3243303A (en) * 1962-06-27 1966-03-29 Leighton C Johnson Temperature monitor employing a flowable aqueous composition containing dispersed polyvinyl acetate as a flow retardant
US3952746A (en) * 1974-07-29 1976-04-27 Summers F Wayne Humidity indicating diaper cover
US4212153A (en) * 1978-02-07 1980-07-15 Herculite Protective Fabrics Corporation Time color indicator
US4205043A (en) * 1978-05-04 1980-05-27 Esch Victor H Hazardous atmosphere badge
US4248597A (en) * 1978-12-12 1981-02-03 Akzona Incorporated Time watch or depletion indicator for removable substances
US4550150A (en) * 1980-11-19 1985-10-29 Allied Corporation Coloration of acetylenic monomers by gases
US4812053A (en) * 1986-01-02 1989-03-14 Lifelines Technology, Inc. Activatable time-temperature indicator
US5482000A (en) * 1994-06-15 1996-01-09 Patent Master, Inc. Surface mount overheat indicator with projecting fusible disk

Also Published As

Publication number Publication date
GB9727286D0 (en) 1998-02-25
CA2226653C (en) 1999-12-14
AU6593496A (en) 1997-02-26
GB2317695A (en) 1998-04-01
WO1997005481A1 (en) 1997-02-13
US5630372A (en) 1997-05-20
GB2317695B (en) 1999-04-14
DE19681506T1 (en) 1999-01-28

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