FR2665258A1 - Defrosting (unfreezing) indicator for frozen products and refrigerated products - Google Patents

Defrosting (unfreezing) indicator for frozen products and refrigerated products Download PDF

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Publication number
FR2665258A1
FR2665258A1 FR9009482A FR9009482A FR2665258A1 FR 2665258 A1 FR2665258 A1 FR 2665258A1 FR 9009482 A FR9009482 A FR 9009482A FR 9009482 A FR9009482 A FR 9009482A FR 2665258 A1 FR2665258 A1 FR 2665258A1
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FR
France
Prior art keywords
indicator
frozen
liquid
products
container
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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.)
Pending
Application number
FR9009482A
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French (fr)
Inventor
Staerk
Maria
Ruth
Ingeborg
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.)
STAERK MARIA
Original Assignee
STAERK MARIA
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 STAERK MARIA filed Critical STAERK MARIA
Priority to FR9009482A priority Critical patent/FR2665258A1/en
Publication of FR2665258A1 publication Critical patent/FR2665258A1/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/06Measuring 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

Abstract

Indicator for frozen or deep-frozen products, consisting of one or more containers (3), (4), (5) which are at least partially transparent and a part of which is filled with an indicator liquid (7) which freezes and unfreezes at a defined temperature, the characteristic of which consists in the fact that at least one coloured solid body (6) made of any material, having a density equal to or different from that of the indicator liquid, is incorporated in the indicator liquid (7). Such indicators may find their application in freezers, deep-freezers, transport means for frozen or deep-frozen products, and wherever monitoring of temperature proves necessary.

Description

INDICATEUR, DE DEGEL POUR PRODUITS SURGELES ET PRODUITS RAFRAICHIS
Pour contrôler la chalne du froid, spécialement des produits surgelés, on utilise des indicateurs qui rendent visibles la remontée des températures critiques, lorsque dégèlent les liquides colorés incorporés dans des récipients tout ou en partie transparents.
INDICATOR, DEFROST FOR FROZEN PRODUCTS AND REFRESHED PRODUCTS
To control the cold chain, especially frozen products, indicators are used which make visible the rise in critical temperatures when the colored liquids thaw incorporated in wholly or partly transparent containers.

Afin de rendre visible ce dégel, le récipient, qui contient le liquide, est gelé dans une position précise. Cette position est modifiée après le gel, de façon à ce que les liquides des indicateurs, une fois dégelés, s'écoulent dans une autre partie du récipient pour y rester. Des tels indicateurs sont, dans la plupart des cas, équipés de plusieurs récipients contenant plusieurs liquides indicateurs, dont les couleurs correspondent à differeh- tes températures de dégel.In order to make this thaw visible, the container, which contains the liquid, is frozen in a precise position. This position is changed after freezing, so that the indicator liquids, once thawed, flow into another part of the container to stay there. Such indicators are, in most cases, equipped with several containers containing several indicator liquids, the colors of which correspond to different thaw temperatures.

Afin de bien distinguer ces liquides, on donne généralement à ces liquides des couleurs différentes. Or, après avoir été gelés la plupart des colorants perdent leur couleur et rendent souvent impossible de reconnaître leur état ; les cristaux de glace qui se forment rendant opaque le liquide gelé.In order to clearly distinguish these liquids, these liquids are generally given different colors. However, after being frozen most dyes lose their color and often make it impossible to recognize their condition; the ice crystals that form making the frozen liquid opaque.

OBJET DU BREVET
Il est proposé d'introduire dans le liquide indicateur au moins un corps solide, possédant un poids spécifique égal ou différent de celui du liquide indicateur. Ces corps solides sont également teints dans différents coloris, correspondant aux différentes températures auxquelles les liquides indicateurs doivent geler.
OBJECT OF THE PATENT
It is proposed to introduce into the indicator liquid at least one solid body, having a specific weight equal to or different from that of the indicator liquid. These solid bodies are also dyed in different colors, corresponding to the different temperatures at which the indicator liquids must freeze.

Le liquide indicateur lui-même, contenant un tel corps solide, peut être incolore, ce qui éviterait que le liquide perde sa couleur sous l'effet de sa cristallisation. Néanmoins, un liquide coloré peut toujours être utilise.The indicator liquid itself, containing such a solid body, may be colorless, which would prevent the liquid from losing its color under the effect of its crystallization. However, a colored liquid can still be used.

L'utilisation de billes ou particules teintées, d'une matière quelconque notamment en verre, correspondrait particulièrement bien aux indicateurs faisant l'objet du brevet. Les figures I à 3 montrent un exemple d'un tel indicateur.The use of tinted beads or particles, of any material, in particular glass, would correspond particularly well to the indicators covered by the patent. Figures I to 3 show an example of such an indicator.

La figure I montre l'indicateur (I) pour l'exemple en matière plastique, avec son socle (2) dans une position dans laquelle les liquides (7) sont gelés dans les récipients (3), (4) et (5). Figure I shows the indicator (I) for the plastic example, with its base (2) in a position in which the liquids (7) are frozen in the containers (3), (4) and (5) .

Une fois le liquide gelé, on met l'indicateur (I) dans la position inverse montrée par la figure 2. Il reste dans cette position à l'endroit où la température doit être contrôlée.Once the liquid is frozen, put the indicator (I) in the reverse position shown in Figure 2. It remains in this position where the temperature must be controlled.

Le liquide gelé (7) avec les billes incorporées (6) se trouve maintenant en haut. Lorsque la température se réchauffe, il dégèle et coule vers le bas sous l'effet de la pesanteur et entraine les billes (6).The frozen liquid (7) with the incorporated balls (6) is now at the top. When the temperature warms up, it thaws and flows down under the effect of gravity and entrains the balls (6).

La figure 3 montre une telle situation : le liquide indicateur des récipients (3) et (4) est déjà dégelé, mais il reste encore gelé dans le récipient (5).Figure 3 shows such a situation: the indicator liquid in the containers (3) and (4) is already thawed, but it still remains frozen in the container (5).

Exemple : Si le récipient (3) contenait un liquide qui doit dégeler à - 12"C, celui du récipient (4) un autre qui doit dégeler à - 8 C et le récipient (5) un à - 2 c, la situation démontrée par la figure 3 signifierait que la température de - 8"C est déjà dépassée, mais non encore celle de - 200. Example: If the container (3) contained a liquid which must thaw at - 12 "C, that of the container (4) another which must thaw at - 8 C and the container (5) one at - 2 c, the situation demonstrated by Figure 3 would mean that the temperature of - 8 "C is already exceeded, but not yet that of - 200.

Les figures 4 à 6 montrent un autre exemple. On utilise un récipient tournant (10) contenant un seul liquide indicateur (7) pour le contrôle d'une température de dégel unique. La figure 4 montre le récipient, incorporé dans le congélateur, avec sa poignée (9) vers le haut. Le liquide indicateur (7) et les billes (6) se trouvent dans le fond du récipient (10). Ce récipient est incorporé dans une plaque spéciale du congélateur qui possède une fenêtre (8). A travers cette fenêtre, on ne voit qu'une partie du récipient transparent. Après congélation du liquide contenant les billes, on tourne le récipient (10) dans la position montrée par le schéma 5.Figures 4 to 6 show another example. A rotating container (10) containing a single indicator liquid (7) is used to control a single thaw temperature. Figure 4 shows the container, incorporated in the freezer, with its handle (9) upwards. The indicator liquid (7) and the balls (6) are located in the bottom of the container (10). This container is incorporated in a special freezer plate which has a window (8). Through this window, you can only see part of the transparent container. After the liquid containing the beads has been frozen, the container (10) is turned to the position shown in diagram 5.

Le liquide indicateur (7) gelé contenant les billes (6) se trouve maintenant en haut et aucune couleur n'est visible par la fenêtre (8).The frozen indicator liquid (7) containing the balls (6) is now at the top and no color is visible through the window (8).

Dès que la température de décongélation du liquide indicateur (7) est atteinte, le liquide dégèle, coule vers le bas et se trouve à nouveau dans la position démontrée par la figure 6.As soon as the thawing temperature of the indicator liquid (7) is reached, the liquid thaws, flows down and is again in the position shown in Figure 6.

La couleur apparaît maintenant bien visible par la fenêtre (8).The color now appears clearly visible through the window (8).

Même si le congélateur se remettait à fonctionner (après une coupure de courant, par exemple), l'incident serait mémorisé et visible grâce à la coloration parfaite. Une nervure de retenue latérale ou périphérique (11) à l'intérieur du récipient évite une descente accidentelle de la partie congelée lorsque celleci se trouve dans la position figure 5. Even if the freezer starts working again (after a power failure, for example), the incident will be memorized and visible thanks to the perfect coloring. A lateral or peripheral retaining rib (11) inside the container prevents the frozen part from accidentally lowering when it is in the position in FIG. 5.

Claims (2)

REVENDICATIONS 1. Indicateur pour produits congelés ou surgelés consistant en un ou plusieurs récipients (3), (4) et'(5), au moins partiellement transparents et dont une partie est remplie d'un liquide indicateur (7) qui gèle et dégèle à une température déterminée, dont la particularité consiste dans le fait que dans le liquide indicateur (7) est incorporé au moins un corps solide teinté (6) possédant un poids spécifique égal ou différent du liquide indicateur.1. Indicator for frozen or deep-frozen products consisting of one or more containers (3), (4) and '(5), at least partially transparent and part of which is filled with an indicator liquid (7) which freezes and thaws at a determined temperature, the particularity of which consists in the fact that in the indicator liquid (7) is incorporated at least one tinted solid body (6) having a specific weight equal to or different from the indicator liquid. 2. Indicateur selon la revendication 1. et 2. avec la particularite que les corps solides incorporés dans le liquide sont des billes ou particules, par exemple en verre. 2. Indicator according to claim 1. and 2. with the particularity that the solid bodies incorporated in the liquid are beads or particles, for example made of glass.
FR9009482A 1990-07-25 1990-07-25 Defrosting (unfreezing) indicator for frozen products and refrigerated products Pending FR2665258A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9009482A FR2665258A1 (en) 1990-07-25 1990-07-25 Defrosting (unfreezing) indicator for frozen products and refrigerated products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9009482A FR2665258A1 (en) 1990-07-25 1990-07-25 Defrosting (unfreezing) indicator for frozen products and refrigerated products

Publications (1)

Publication Number Publication Date
FR2665258A1 true FR2665258A1 (en) 1992-01-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9009482A Pending FR2665258A1 (en) 1990-07-25 1990-07-25 Defrosting (unfreezing) indicator for frozen products and refrigerated products

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FR (1) FR2665258A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0740136A1 (en) * 1995-04-27 1996-10-30 SOCIETE COOL S.a.r.l. Reversible cold control device for electric household appliances and market displays

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856930A (en) * 1957-04-15 1958-10-21 Willard M Huyck Temperature indicator for blood storage container
FR1342567A (en) * 1962-12-26 1963-11-08 Honeywell Regulator Co Temperature cycle indicator
FR2553512A1 (en) * 1983-10-13 1985-04-19 Thierry Dominique Indicator for use in maintaining a temperature beneath a threshold

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856930A (en) * 1957-04-15 1958-10-21 Willard M Huyck Temperature indicator for blood storage container
FR1342567A (en) * 1962-12-26 1963-11-08 Honeywell Regulator Co Temperature cycle indicator
FR2553512A1 (en) * 1983-10-13 1985-04-19 Thierry Dominique Indicator for use in maintaining a temperature beneath a threshold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0740136A1 (en) * 1995-04-27 1996-10-30 SOCIETE COOL S.a.r.l. Reversible cold control device for electric household appliances and market displays
FR2733589A1 (en) * 1995-04-27 1996-10-31 Cool Sarl REVERSIBLE TYPE COLD CONTROLLER DEVICE FOR ELECTRICALLY EQUIPMENT APPARATUS AND MARKET CALIBRATION

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