F - Mech Eng,Light,Heat,Weapons – 24 – J
Patent
F - Mech Eng,Light,Heat,Weapons
24
J
F24J 1/00 (2006.01) A47J 36/28 (2006.01) B65D 81/34 (2006.01)
Patent
CA 2378773
Improved heaters and self-heating packages that function without application of external energy. Heat is generated by contact of a heat-producing composition, such as calcium oxide, and an activating so-lution which is typically water. The heater contains multicompartments (9, 11) containing heat-producing composition and activating solution. The heater is activated by application of hand pressure to rupture a frangible seal (13) which allows the heater components to mix. The heater compartments (9, 11) are at least in part formed from flexible walls. The self-heating package has one or more products or product containers in thermal contact with one or more heaters. In preferred packaging embodiments, the heating package has one or more product containers or pouches in thermal contact with one or more heaters. In a specific embodiment, the product container is integrally formed with the heater. Preferred self-heating packages are constructed entirely of flexible packaging materials.
L'invention porte sur des éléments chauffants et des emballages autochauffants fonctionnant sans application d'énergie extérieure et où la chaleur provient de la mise en contact de compositions thermogènes telles que de l'oxyde de calcium et une solution activatrice, normalement de l'eau. Un emballage, qui comporte plusieurs compartiments (9, 11) contenant respectivement la compositions thermogènes et la solution activatrice, s'actionne par une pression de la main qui rompt un opercule frangible (13) et permet le mélange des composants. Lesdits compartiments (9, 11) comportent au moins en partie des parois souples. Dans l'exécution préférée de l'emballage autochauffant, ce dernier comporte une ou plusieurs poches d'un ou de plusieurs produits en contact thermique avec un ou plusieurs éléments chauffants. Dans une exécution particulière, la ou les poches font partie intégrante de l'élément chauffant. Les emballages autochauffants préférés sont ceux intégralement constitués de matériaux souples.
Bell William L.
Dippo James L.
Mckay-Carey & Company
Tda Research Inc.
LandOfFree
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