FR2239677A1 - Verifying correct freezing of food prod - using seal that deforms if temp. exceeds upper limit - Google Patents

Verifying correct freezing of food prod - using seal that deforms if temp. exceeds upper limit

Info

Publication number
FR2239677A1
FR2239677A1 FR7328054A FR7328054A FR2239677A1 FR 2239677 A1 FR2239677 A1 FR 2239677A1 FR 7328054 A FR7328054 A FR 7328054A FR 7328054 A FR7328054 A FR 7328054A FR 2239677 A1 FR2239677 A1 FR 2239677A1
Authority
FR
France
Prior art keywords
temp
prod
seal
deforms
upper limit
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
FR7328054A
Other languages
French (fr)
Other versions
FR2239677B3 (en
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.)
BELLAN FRANCIS FR
Original Assignee
BELLAN FRANCIS FR
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 BELLAN FRANCIS FR filed Critical BELLAN FRANCIS FR
Priority to FR7328054A priority Critical patent/FR2239677A1/en
Publication of FR2239677A1 publication Critical patent/FR2239677A1/en
Application granted granted Critical
Publication of FR2239677B3 publication Critical patent/FR2239677B3/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01K11/06—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using melting, freezing, or softening

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Abstract

Verification that a prod., and partic. a food prod., has been preserved below a given limiting temp. is assured by moulding the prod. into a special indicating shape; this becomes deformed if the temp. rises too high and it can not return to its original shape whatever the subsequent temp. changes. Another form of indicator is in the form of a seal; this is made from body whch is solid below below -18 degrees C and liq. above this temp. It can be made from a mixt. of water and glycol and is frozen in a mould at the same time as the prod. It is then introduced into a plastic pocket with the prod. to be verified so that it can be seen from the outside of the package. If the temp. should rise too high the seal is irreversibly deformed and cannot be re-modelled. Method of verification is easy.
FR7328054A 1973-07-31 1973-07-31 Verifying correct freezing of food prod - using seal that deforms if temp. exceeds upper limit Granted FR2239677A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7328054A FR2239677A1 (en) 1973-07-31 1973-07-31 Verifying correct freezing of food prod - using seal that deforms if temp. exceeds upper limit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7328054A FR2239677A1 (en) 1973-07-31 1973-07-31 Verifying correct freezing of food prod - using seal that deforms if temp. exceeds upper limit

Publications (2)

Publication Number Publication Date
FR2239677A1 true FR2239677A1 (en) 1975-02-28
FR2239677B3 FR2239677B3 (en) 1976-07-16

Family

ID=9123411

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7328054A Granted FR2239677A1 (en) 1973-07-31 1973-07-31 Verifying correct freezing of food prod - using seal that deforms if temp. exceeds upper limit

Country Status (1)

Country Link
FR (1) FR2239677A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472741A1 (en) * 1979-12-28 1981-07-03 Cardon Jean Pierre Indicator to reveal temp. rise of refrigerated prod. - esp. frozen food uses indicator material which melts at critical temp.
US4998827A (en) * 1987-05-20 1991-03-12 Walter Holzer Cold indicator for controlling the cooling or freezing of foods, medicines and the like
US5301632A (en) * 1989-01-09 1994-04-12 Jean-Luc Berry Control sample of a deep-frozen product or a product, whose keeping temperature must be checked

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472741A1 (en) * 1979-12-28 1981-07-03 Cardon Jean Pierre Indicator to reveal temp. rise of refrigerated prod. - esp. frozen food uses indicator material which melts at critical temp.
US4998827A (en) * 1987-05-20 1991-03-12 Walter Holzer Cold indicator for controlling the cooling or freezing of foods, medicines and the like
US5301632A (en) * 1989-01-09 1994-04-12 Jean-Luc Berry Control sample of a deep-frozen product or a product, whose keeping temperature must be checked

Also Published As

Publication number Publication date
FR2239677B3 (en) 1976-07-16

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Legal Events

Date Code Title Description
ST Notification of lapse