A - Human Necessities – 47 – J
Patent
A - Human Necessities
47
J
A47J 36/28 (2006.01) B65D 81/34 (2006.01)
Patent
CA 2386537
A self-heating metal can (10) has an indented base (16) defining an external cavity (20) which is utilised to contain heating means. The heating means comprises quicklime (26) filled within a first chamber (28) and water within a second chamber (32) of the cavity (20). A breakable membrane (24) separates the two chambers (28, 32) and the second chamber (32) is closed by closure (30). Depression of a button (50) of the closure moves an elongate piercing member (42) to pierce the membrane (24) so that water from the chamber (32) flows over the quicklime (22) to cause the exothermic reaction.
L'invention concerne une canette métallique autochauffante (10) ayant une base indentée (16) qui définit une cavité (20) dans laquelle prend place un système chauffant. Ce système comprend de la chaux vive (26) dans une première chambre (28) et de l'eau dans une seconde chambre (32) de la cavité (20). Une membrane frangible (24) sépare les deux chambres (28, 32), et la seconde chambre (32) est fermée par une obturation (30). En appuyant sur un bouton (50) de l'obturation, on déplace un élément de percement allongé (42) pour percer la membrane (24), ce qui permet à l'eau de la chambre (32) de s'écouler sur la chaux vive (22), entraînant une réaction exothermique.
Sim & Mcburney
Thermotic Developments Limited
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