FR2370269A2 - Appts. for detecting temp. rise in deep frozen foods - includes salt soln. in glass container surrounded by colour indicator means - Google Patents
Appts. for detecting temp. rise in deep frozen foods - includes salt soln. in glass container surrounded by colour indicator meansInfo
- Publication number
- FR2370269A2 FR2370269A2 FR7633746A FR7633746A FR2370269A2 FR 2370269 A2 FR2370269 A2 FR 2370269A2 FR 7633746 A FR7633746 A FR 7633746A FR 7633746 A FR7633746 A FR 7633746A FR 2370269 A2 FR2370269 A2 FR 2370269A2
- Authority
- FR
- France
- Prior art keywords
- liq
- appts
- indicator means
- rise
- temp
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
-
- 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
- G01K3/06—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of space
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Appts. for detecting reheating in a deep-frozen prod. according to the principal patent comprises a liq. having a predetermined solidification point, an enveloping material which holds the liq. and which is degradable, to permit flow of the liq., at about the freezing point of the liq. and means to indicate flow of the liq. when the temp. rises above the liq. freezing point. Improvement comprises using a soln. of a salt as liq., the pH of which is adjusted to a predetermined value. The indicator means comprises a porous body previously impregnated with a substance which will give a clear colour change when moistened by the liq. when it flows. The appts. is used for monitoring the storage of food and provides a visible indication that a certain temp. has been exceeded.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7633746A FR2370269A2 (en) | 1976-11-09 | 1976-11-09 | Appts. for detecting temp. rise in deep frozen foods - includes salt soln. in glass container surrounded by colour indicator means |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7633746A FR2370269A2 (en) | 1976-11-09 | 1976-11-09 | Appts. for detecting temp. rise in deep frozen foods - includes salt soln. in glass container surrounded by colour indicator means |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2370269A2 true FR2370269A2 (en) | 1978-06-02 |
FR2370269B2 FR2370269B2 (en) | 1980-05-23 |
Family
ID=9179695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7633746A Granted FR2370269A2 (en) | 1976-11-09 | 1976-11-09 | Appts. for detecting temp. rise in deep frozen foods - includes salt soln. in glass container surrounded by colour indicator means |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2370269A2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016005070A1 (en) * | 2016-04-27 | 2017-11-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for monitoring the temperature of a cryopreserved biological sample |
US11085834B2 (en) | 2016-04-27 | 2021-08-10 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Device and method for monitoring the temperature of a cryogenically preserved biological sample |
US11166454B2 (en) | 2016-04-27 | 2021-11-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Method and device for the temperature monitoring of a cryopreserved biological sample |
US11606952B2 (en) | 2016-04-27 | 2023-03-21 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Method and device for the temperature monitoring of a cryopreserved biological sample |
-
1976
- 1976-11-09 FR FR7633746A patent/FR2370269A2/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016005070A1 (en) * | 2016-04-27 | 2017-11-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for monitoring the temperature of a cryopreserved biological sample |
US11085834B2 (en) | 2016-04-27 | 2021-08-10 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Device and method for monitoring the temperature of a cryogenically preserved biological sample |
US11166454B2 (en) | 2016-04-27 | 2021-11-09 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Method and device for the temperature monitoring of a cryopreserved biological sample |
US11549851B2 (en) | 2016-04-27 | 2023-01-10 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E. V. | Device and method for monitoring the temperature of a cryopreserved biological sample |
US11606952B2 (en) | 2016-04-27 | 2023-03-21 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Method and device for the temperature monitoring of a cryopreserved biological sample |
Also Published As
Publication number | Publication date |
---|---|
FR2370269B2 (en) | 1980-05-23 |
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