GB1323833A - Device for indicating non-permissible time-temperature conditions during storage of temperature sensitive products - Google Patents

Device for indicating non-permissible time-temperature conditions during storage of temperature sensitive products

Info

Publication number
GB1323833A
GB1323833A GB3256471A GB3256471A GB1323833A GB 1323833 A GB1323833 A GB 1323833A GB 3256471 A GB3256471 A GB 3256471A GB 3256471 A GB3256471 A GB 3256471A GB 1323833 A GB1323833 A GB 1323833A
Authority
GB
United Kingdom
Prior art keywords
temperature
substances
water
substance
change
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
Application number
GB3256471A
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.)
Food Control AB
Original Assignee
Food Control 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 Food Control AB filed Critical Food Control AB
Publication of GB1323833A publication Critical patent/GB1323833A/en
Expired legal-status Critical Current

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
    • G01N31/229—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 time/temperature history
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
    • G01K3/04—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of time

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Closures For Containers (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

1323833 Temperature indicating FOOD CONTROL AB 12 July 1971 [13 July 1970] 32564/71 Heading G1D A device for indicating whether or not a food package has been subjected to too high a temperature for too long comprises a permeable membrane through which one substance is able to permeate to react with another substance and to produce a visual change in the other substance. As shown, an impermeable envelope 3 which may be of plastics material encloses silica gel 4 and water 6 (which may contain glycerine) which interact to change colour with time and temperature, due to the migration of the water through a permeable diaphragm 5, a support 7 of aluminium foil coated with polyethylene being provided to secure the device to a food package 2. In other embodiments, a PVC or glass ampoule completely encloses the two substances, Fig. 2 (not shown); and a rupturable metal foil partition (10) Fig. 3, (not shown) is arranged to maintain the two interacting substances apart at least until the partition is broken. Apart from silica gel and water the inter-acting substances may alternatively comprise iodine and starch or ammonia and cupric ions to provide a change in colour when the substances interact.
GB3256471A 1970-07-13 1971-07-12 Device for indicating non-permissible time-temperature conditions during storage of temperature sensitive products Expired GB1323833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE09715/70A SE351494B (en) 1970-07-13 1970-07-13

Publications (1)

Publication Number Publication Date
GB1323833A true GB1323833A (en) 1973-07-18

Family

ID=20277362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3256471A Expired GB1323833A (en) 1970-07-13 1971-07-12 Device for indicating non-permissible time-temperature conditions during storage of temperature sensitive products

Country Status (14)

Country Link
JP (1) JPS5145658B1 (en)
AU (1) AU452374B2 (en)
BE (1) BE769847A (en)
CA (1) CA952001A (en)
CH (1) CH523554A (en)
DE (2) DE2134480B2 (en)
FR (1) FR2101598A5 (en)
GB (1) GB1323833A (en)
IT (1) IT961511B (en)
NL (1) NL7109617A (en)
NO (1) NO133293C (en)
SE (1) SE351494B (en)
SU (1) SU520942A3 (en)
ZA (1) ZA714594B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4545991A (en) * 1983-06-13 1985-10-08 Merck & Co., Inc. Difficidin and derivative antibacterials
EP0177432A1 (en) * 1984-09-28 1986-04-09 Société dite: LABORATOIRES STANDA Device for managing a number of perishable products according to temperature and time
US4681846A (en) * 1983-06-13 1987-07-21 Merck & Co., Inc. Process for the preparation of difficidin and derivative antibacterials
WO1991006853A1 (en) * 1989-11-02 1991-05-16 Badische Tabakmanufaktur Roth-Händle Gmbh Indicator for displaying time-lapses and/or the onset of changes of state
US5368905A (en) * 1991-09-17 1994-11-29 Nichiyu Giken Kogyo Co., Ltd. Heat-sensitive indicator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462693A1 (en) * 1979-08-03 1981-02-13 Oreal AGING INDICATOR
DE20000317U1 (en) * 2000-01-08 2001-06-07 Trender, Joachim, Dipl.-Kaufm., 56077 Koblenz Device for permanent, permanent detection and display of an overshoot / undershoot of a predetermined temperature
DE102006004974A1 (en) * 2006-02-01 2007-08-02 Krümpel, Jan Frozen package temperature monitor, to indicate if it has thawed, uses two chemicals separated by a dividing layer which is permeable at a given temperature for the chemicals to combine with a visible reaction

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE524835C (en) * 1931-05-16 Gerhard Schulz Electroplated metal casting mold with reinforcement on the back
DE704732C (en) * 1938-01-11 1941-04-05 Max Stoessel Process for the production of casting or compression molds, especially for the synthetic resin industry
DE712915C (en) * 1939-01-05 1941-10-28 Siemens Schuckertwerke Akt Ges Process for the production of mold plates, models and the like like. for foundry purposes
DE888602C (en) * 1948-10-02 1953-09-03 Wmf Wuerttemberg Metallwaren Process for the production of permanent forms or model facilities

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4545991A (en) * 1983-06-13 1985-10-08 Merck & Co., Inc. Difficidin and derivative antibacterials
US4681846A (en) * 1983-06-13 1987-07-21 Merck & Co., Inc. Process for the preparation of difficidin and derivative antibacterials
EP0177432A1 (en) * 1984-09-28 1986-04-09 Société dite: LABORATOIRES STANDA Device for managing a number of perishable products according to temperature and time
WO1991006853A1 (en) * 1989-11-02 1991-05-16 Badische Tabakmanufaktur Roth-Händle Gmbh Indicator for displaying time-lapses and/or the onset of changes of state
US5368905A (en) * 1991-09-17 1994-11-29 Nichiyu Giken Kogyo Co., Ltd. Heat-sensitive indicator

Also Published As

Publication number Publication date
DE2134480A1 (en) 1972-01-27
NO133293C (en) 1976-04-07
BE769847A (en) 1971-11-16
DE2134480B2 (en) 1977-05-18
NO133293B (en) 1975-12-29
AU452374B2 (en) 1974-09-05
NL7109617A (en) 1972-01-17
SE351494B (en) 1972-11-27
JPS5145658B1 (en) 1976-12-04
IT961511B (en) 1973-12-10
SU520942A3 (en) 1976-07-05
DE1134480B (en) 1972-01-27
ZA714594B (en) 1972-03-29
FR2101598A5 (en) 1972-03-31
CA952001A (en) 1974-07-30
CH523554A (en) 1972-05-31
AU3112871A (en) 1973-01-18

Similar Documents

Publication Publication Date Title
CA1002152A (en) Liquid temperature control and low liquid level detector
ES432174A1 (en) Integrity indicator
CA1026204A (en) Pressure vessel with sensing device
CA941050A (en) Temperature controlled flow cell
GB1323833A (en) Device for indicating non-permissible time-temperature conditions during storage of temperature sensitive products
CA949670A (en) Temperature sensor for liquid level detection
CA1004555A (en) Fluid level alarm and control device
CA948254A (en) Liquid heating units, control means for such units and vessels incorporating heating units
CA923350A (en) System for rupturing a pod containing processing fluid for photographic material
CA918086A (en) Pressure vessel with seal ring construction
CA924673A (en) Diaphragm cell for the electrophoresis of substance mixtures
JPS5366785A (en) Solid or liquid oxidation indicator containing 99substituted 33amino carbazole derivatives and its manufacture
CA929059A (en) Vessel for meltable heat storage masses
ZA71100B (en) Liquid heating units,control means for such units and vessels incorporating heating units
GB1297195A (en)
CA936014A (en) Fluid device having flow control and indicating means
CA895847A (en) Method of and means for reconcentrating liquid desiccant
CA812030A (en) Impermeable graphite rupture disc or tube
CA817035A (en) Pressure sensing, indicating and/or control means
CA880690A (en) Combined vent and overflow means for an enclosed fluid containing vessel
CA816535A (en) Film walled resilient nipples, and containers and liquid containing packages integral therewith
CA910893A (en) Porous packing material containing pressure and/or heat sensitive encapsulated lubricant and method for making and using the same
CA818881A (en) Temperature sensitive indicator
CA846753A (en) Method and means for coating paper with pressure rupturable fluid containing capsules
CA850446A (en) Pure fluid temperature sensor

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees