WO1998023920A1 - Etiquette indicatrice d'humidite - Google Patents

Etiquette indicatrice d'humidite Download PDF

Info

Publication number
WO1998023920A1
WO1998023920A1 PCT/US1997/021464 US9721464W WO9823920A1 WO 1998023920 A1 WO1998023920 A1 WO 1998023920A1 US 9721464 W US9721464 W US 9721464W WO 9823920 A1 WO9823920 A1 WO 9823920A1
Authority
WO
WIPO (PCT)
Prior art keywords
label
spot
moisture
exposure
spot comprises
Prior art date
Application number
PCT/US1997/021464
Other languages
English (en)
Inventor
Stacy N. Smith
Original Assignee
Ericsson Inc.
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 Ericsson Inc. filed Critical Ericsson Inc.
Priority to AU74112/98A priority Critical patent/AU7411298A/en
Publication of WO1998023920A1 publication Critical patent/WO1998023920A1/fr

Links

Classifications

    • 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
    • G01N31/222—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 moisture content
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D7/00—Indicating measured values
    • G01D7/005—Indication of measured value by colour change
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment

Definitions

  • the present invention relates to the detection of moisture and, in particular, to the detection of moisture exposure to an electronic device .
  • Description of Related Art Through neglect or accident, electronic devices are occasionally exposed to moisture. For example, a cellular telephone may accidentally be dropped by its owning subscriber into a body of water (such as a swimming pool or lake) . Certain electrical components of the electronic device may be adversely affected by such moisture exposure, especially if the exposure is a submersion and lasts for a prolonged period of time. Not surprisingly, the electrical device often fails to thereafter operate properly, if at all. It is not then unusual for the owner to return the device for repair and allege a warranty- covered defect as the cause of the failure.
  • manufacturers' warranties do not cover electrical failure due to submersion types of moisture exposure.
  • the owner is assisted, however, in asserting a fraudulent warranty claim related to a device failure because the cause of the failure (i.e., the moisture) has long since evaporated before the device is returned for repairs.
  • the owner admits to the moisture exposing incident, or some other indication of exposure is present, the manufacturer is left with little option but to repair or replace the device at its own cost.
  • the repairman has suspicions, accusation of the owner of fraud without sufficient evidence of a moisture exposing incident is an unacceptable solution.
  • some objective means could be provided for indicating when an electronic device has been subjected to unacceptable levels of moisture.
  • One known prior art solution to this need is to place a desiccant card, having an indicator that changes color with changes in relative humidity, inside the device.
  • This solution is not particularly effective as the indicator responds to humidity changes, and thus, returns to normal with a return of the device to a low humidity environment. Thus, no permanent indication of excessive moisture exposure is provided.
  • detection of a high humidity (as opposed to moisture submersion) condition is generally irrelevant as humidity does not normally adversely affect device operation.
  • An alternative solution of providing a desiccant package is disfavored for the same reasons, as well as because installation of the package within the device may be difficult or too expensive.
  • the present invention comprises a label made of an appropriate substrate material having a spot of water soluble ink disposed on a front side thereof.
  • the label may be affixed to a surface of, or otherwise included within an electrical device.
  • the label may be affixed to a support frame of the device. If the device were thereafter exposed to moisture, such as a submersion in water, an irreversible distortion (e.g., a smearing, dissolution or bleeding) of the water soluble ink spot occurs leaving a visible objective indicating unacceptable exposure.
  • the characteristics of the ink are selectively chosen such that acceptable levels of moisture exposure (from, for example, high humidity environments) would not cause any ink smearing, dissolution or bleeding on the substrate.
  • FIGURE 1 is a top view of a moisture indicator label of the present invention
  • FIGURE 2 is a cross-sectional view of the moisture indicator label of the present invention taken along lines 2-2 of FIGURE 1;
  • FIGURE 3 is an exploded perspective view of a cellular telephone illustrating the application of the moisture indicator label of the present invention to the interior of an electronic device.
  • FIGURE 1 is a top view of a moisture indicator label 10
  • FIGURE 2 is a cross-sectional view of the moisture indicator label taken along lines 2-2 of FIGURE 1.
  • the moisture indicator label 10 comprises a substrate material 12 made of appropriately sized sheet film, paper, cardstock or plastic. Affixed to the back side 14 of the substrate material 12 in one embodiment is a thin layer 16 (thickness exaggerated in FIGURE 2 for clarity) of a pressure-sensitive adhesive.
  • the adhesive used may be of any known kind, including any one of a number of commercial grade acrylic adhesives, but in any event, should be carefully selected from those kinds of adhesives whose adhesive properties do not degrade when exposed to moisture. In another embodiment, no adhesive is applied to the back side 14.
  • spot 20 Affixed to a front side 18 of the substrate material 12 is at least one spot 20 (thickness exaggerated in FIGURE 2 for clarity) of a water soluble ink.
  • spot is not meant to restrict the shape of the ink spot 20 to a dot or similar circular shape. Rather, the term “spot” is meant to encompass circular, as well as non-circular shapes, and thus include lines, squares and other geometric configurations or designs (such as manufacturer logos or selected text) as permissible shapes for the ink spot 20.
  • the shape of the spot 20 may be advantageously selected to provide information in the event of an exposure to moisture as will be more fully-explained below.
  • the ink used may be of any know water soluble kind including Colorcon No-Tox or commercial food inks. It will, of course, be understood that the permissible inks used in spot 20 include equivalent water soluble dyes as well. In accordance with its solubility characteristic, the ink spot 20 will irreversibly distort by smearing, dissolving or bleeding when exposed to moisture, thus providing an objective indication of exposure even if the moisture should thereafter evaporate and leave no other trace of exposure .
  • more than one spot 20 of ink may be applied to the front side 18 of the substrate material 12.
  • the plural included ink spots 20 may have differing solubility characteristics, as well as perhaps different shapes, and thus, react with an irreversible distortion (such as smearing, dissolving or bleeding) differently when exposed to moisture.
  • This provides not only an objective indication of exposure to moisture, but also an objective indication of the nature of the exposure.
  • an indication of the length of time of the moisture exposure may be obtained.
  • an indication of the type of moisture to which the label 10 exposed may be obtained.
  • FIGURE 3 an exploded perspective view of an electronic device 30 comprising a cellular telephone.
  • the device 30 includes a frame 32 supporting a plurality of electric circuit components (schematically illustrated at 34) mounted in one embodiment to a printed circuit board.
  • the frame 32 also functions as a printed circuit board (or vice versa) obviating the need for a separate board.
  • the device 30 further includes an enclosure 38 for enclosing the frame 32 and protecting the circuit components 34.
  • the moisture indicator label 10 is affixed through the use of its pressure-sensitive adhesive layer 16 to a selected interior surface of the device 30.
  • an appropriate mechanical retainer like a slot, tab or clamp 44, or screw 46
  • the label need not be affixed within the device 30 at all. Although only one mounting position is necessary, plural potential mounting positions for the label 10 are illustrated in FIGURE 3.
  • the label 10 is mounted to an interior surface 40 of the enclosure 38. In another implementation, the label 10 is mounted to a surface 42 of the frame 32.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biophysics (AREA)
  • Signal Processing (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Packaging Frangible Articles (AREA)
  • Telephone Set Structure (AREA)

Abstract

La présente invention concerne une étiquette comprenant un matériau substrat muni ou non d'une couche sensible à la pression placée sur la face arrière de celui-ci, et muni d'un point d'encre hydrosoluble appliqué sur la face avant de celui-ci. L'étiquette est placée à l'intérieur d'un dispositif électronique, où elle est utilisée pour identifier de façon objective les cas d'exposition à l'humidité. En présence d'humidité (laquelle peut être éventuellement due à l'immersion du dispositif dans l'eau), le point d'encre s'étale, coule ou se dissout. Pour mieux identifier la nature (par exemple, la durée) de l'exposition à l'humidité, on peut utiliser plusieurs points d'encre présentant des caractéristiques de solubilité différentes.
PCT/US1997/021464 1996-11-25 1997-11-21 Etiquette indicatrice d'humidite WO1998023920A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU74112/98A AU7411298A (en) 1996-11-25 1997-11-21 Moisture indicator label

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75611196A 1996-11-25 1996-11-25
US08/756,111 1996-11-25

Publications (1)

Publication Number Publication Date
WO1998023920A1 true WO1998023920A1 (fr) 1998-06-04

Family

ID=25042090

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/021464 WO1998023920A1 (fr) 1996-11-25 1997-11-21 Etiquette indicatrice d'humidite

Country Status (3)

Country Link
AU (1) AU7411298A (fr)
CO (1) CO4750739A1 (fr)
WO (1) WO1998023920A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1001264A1 (fr) * 1998-11-12 2000-05-17 Matsushita Electric Industrial Co., Ltd Etiquette indicatrice d'humidité
US6460480B1 (en) * 1998-01-30 2002-10-08 Schloesser Ulrich Label for plants which can be inserted into the soil
WO2003015060A2 (fr) * 2001-08-08 2003-02-20 Schreiner Gmbh & Co. Kg Etiquette et procede pour detecter une humidite indesirable
WO2003031531A1 (fr) * 2001-10-05 2003-04-17 3M Innovative Properties Company Indicateur de contact avec l'eau
WO2008073725A1 (fr) * 2006-12-07 2008-06-19 Apple Inc. Agencement de détection d'eau
WO2008076880A1 (fr) * 2006-12-15 2008-06-26 Brady Worldwide, Inc. Étiquettes multicouches, à accès latéral, indicatrices d'effractions et de la présence d'un solvant
US7732046B2 (en) 2003-11-14 2010-06-08 3M Innovative Properties Company Water contact indicator
US20120067270A1 (en) * 2008-06-12 2012-03-22 Avery Dennison Corporation Water Detecting Label
US20120137959A1 (en) * 2010-12-07 2012-06-07 Samsung Electronics Co., Ltd. Wet-label for electronic device
US8440274B2 (en) 2009-05-26 2013-05-14 Apple Inc. Electronic device moisture indicators
FR3003642A1 (fr) * 2013-03-21 2014-09-26 Daniel Armand Produit comportant un temoin ou revelateur de son immersion dans l'eau et procedes de realisation.
US9300773B2 (en) 2008-05-01 2016-03-29 Apple Inc. Portable electronic device with moisture infiltration indication system
JP2016517527A (ja) * 2013-03-15 2016-06-16 エイチズィーオー・インコーポレーテッド 漸進的水分検出器
US10161895B2 (en) 2014-12-23 2018-12-25 3M Innovative Properties Company Electronic moisture sensor
US11079340B2 (en) 2014-12-23 2021-08-03 3M Innovative Properties Company Methods of monitoring wetness utilizing a resonant circuit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844718A (en) * 1972-05-01 1974-10-29 H Cohen Frozen food defrosting indicator
GB2056950A (en) * 1979-07-21 1981-03-25 Linnich Papier & Kunststoff Sterilizable package
JPH06248207A (ja) * 1993-02-26 1994-09-06 Toppan Printing Co Ltd 水分発色インキ
JPH0798309A (ja) * 1993-09-28 1995-04-11 Toppan Printing Co Ltd 水分インジケータと水分インジケータ用インキ組成物
JPH07146241A (ja) * 1993-11-24 1995-06-06 Toppan Printing Co Ltd 水分インジケータと水分インジケータ用インキ組成物

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3844718A (en) * 1972-05-01 1974-10-29 H Cohen Frozen food defrosting indicator
GB2056950A (en) * 1979-07-21 1981-03-25 Linnich Papier & Kunststoff Sterilizable package
JPH06248207A (ja) * 1993-02-26 1994-09-06 Toppan Printing Co Ltd 水分発色インキ
JPH0798309A (ja) * 1993-09-28 1995-04-11 Toppan Printing Co Ltd 水分インジケータと水分インジケータ用インキ組成物
JPH07146241A (ja) * 1993-11-24 1995-06-06 Toppan Printing Co Ltd 水分インジケータと水分インジケータ用インキ組成物

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 9440, Derwent World Patents Index; Class A97, AN 94-322368, XP002057944 *
PATENT ABSTRACTS OF JAPAN vol. 095, no. 007 31 August 1995 (1995-08-31) *
PATENT ABSTRACTS OF JAPAN vol. 095, no. 009 31 October 1995 (1995-10-31) *

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6460480B1 (en) * 1998-01-30 2002-10-08 Schloesser Ulrich Label for plants which can be inserted into the soil
EP1001264A1 (fr) * 1998-11-12 2000-05-17 Matsushita Electric Industrial Co., Ltd Etiquette indicatrice d'humidité
DE10138965C2 (de) * 2001-08-08 2003-12-04 Schreiner Gmbh & Co Kg Etikett und Verfahren zum Nachweis unerwünschter Feuchtigkeit
WO2003015060A2 (fr) * 2001-08-08 2003-02-20 Schreiner Gmbh & Co. Kg Etiquette et procede pour detecter une humidite indesirable
DE10138965A1 (de) * 2001-08-08 2003-03-06 Schreiner Gmbh & Co Kg Etikett und Verfahren zum Nachweis unerwünschter Feuchtigkeit
WO2003015060A3 (fr) * 2001-08-08 2003-09-25 Schreiner Gmbh & Co Kg Etiquette et procede pour detecter une humidite indesirable
US7744997B2 (en) 2001-10-05 2010-06-29 3M Innovative Properties Company Water contact indicator
CN1318531C (zh) * 2001-10-05 2007-05-30 3M创新有限公司 粘合剂制品以及含该制品的水接触指示系统和标签
KR100933584B1 (ko) * 2001-10-05 2009-12-23 쓰리엠 이노베이티브 프로퍼티즈 컴파니 수 접촉 지시계
WO2003031531A1 (fr) * 2001-10-05 2003-04-17 3M Innovative Properties Company Indicateur de contact avec l'eau
US7105225B2 (en) 2001-10-05 2006-09-12 3M Innovative Properties Company Water contract indicator
US7732046B2 (en) 2003-11-14 2010-06-08 3M Innovative Properties Company Water contact indicator
US8182914B2 (en) 2003-11-14 2012-05-22 3M Innovative Properties Company Water contact indicator
US8210032B2 (en) 2006-12-07 2012-07-03 Apple Inc. Water detection arrangement
WO2008073725A1 (fr) * 2006-12-07 2008-06-19 Apple Inc. Agencement de détection d'eau
US7658095B2 (en) 2006-12-07 2010-02-09 Apple Inc. Water detection arrangement
WO2008076880A1 (fr) * 2006-12-15 2008-06-26 Brady Worldwide, Inc. Étiquettes multicouches, à accès latéral, indicatrices d'effractions et de la présence d'un solvant
US9300773B2 (en) 2008-05-01 2016-03-29 Apple Inc. Portable electronic device with moisture infiltration indication system
US8978574B2 (en) * 2008-06-12 2015-03-17 Avery Dennison Corporation Water detecting label
US20120067270A1 (en) * 2008-06-12 2012-03-22 Avery Dennison Corporation Water Detecting Label
US8440274B2 (en) 2009-05-26 2013-05-14 Apple Inc. Electronic device moisture indicators
US9086298B2 (en) 2009-05-26 2015-07-21 Apple Inc. Electronic device moisture indicators
US8783206B2 (en) * 2010-12-07 2014-07-22 Samsung Electronics Co., Ltd. Wet-label for electronic device
US20120137959A1 (en) * 2010-12-07 2012-06-07 Samsung Electronics Co., Ltd. Wet-label for electronic device
JP2016517527A (ja) * 2013-03-15 2016-06-16 エイチズィーオー・インコーポレーテッド 漸進的水分検出器
FR3003642A1 (fr) * 2013-03-21 2014-09-26 Daniel Armand Produit comportant un temoin ou revelateur de son immersion dans l'eau et procedes de realisation.
US10161895B2 (en) 2014-12-23 2018-12-25 3M Innovative Properties Company Electronic moisture sensor
US11079340B2 (en) 2014-12-23 2021-08-03 3M Innovative Properties Company Methods of monitoring wetness utilizing a resonant circuit

Also Published As

Publication number Publication date
CO4750739A1 (es) 1999-03-31
AU7411298A (en) 1998-06-22

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