Container closure with time-temperature indicator

Details Container closure with time-temperature indicator Container closure with time-temperature indicator

B - Operations, Transporting

65

D

B65D 79/02 (2006.01) B65D 51/24 (2006.01) G01K 11/00 (2006.01) G04F 13/00 (2006.01)

Patent

CA 2386234

The present invention provides a cap (12) for a hermetically sealed container (11), said cap providing a visually observable indication of elapsed time from the opening of the seal of said container, said cap including means for releasing a chemical which effects a color change in a chamber formed therein, said chamber being provided with a transparent section (14) for viewing the contents thereof and said released chemical effecting a cumulative color change of said section (16) with time, the arrangement being such that manipulation of said cap to open said container and said seal effects activation of said releasing means.

La présente invention concerne un bouchon (12) destiné à un récipient hermétiquement fermé (11), qui renseigne visuellement sur le temps écoulé depuis l'ouverture du joint dudit récipient. Le bouchon comprend un dispositif libérant une substance chimique qui provoque un virage de couleur dans la chambre définie par le récipient. Cette chambre comporte une fenêtre (14) permettant d'en observer le contenu. Ladite substance chimique déclenche un virage de couleur cumulatif de la fenêtre (14) avec le temps. L'ensemble est conçu de telle sorte que la manipulation dudit bouchon dans l'intention d'ouvrir le récipient et son joint active le dispositif qui libère la substance chimique.

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