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) A61F 7/08 (2006.01)
Patent
CA 2333295
The invention relates to a self-heating, disposable heating pack (1) utilizing an exothermic chemical reaction. Self-moderation of the heat pack is provided through the use of a preformed reversibly stiffened gel that alters the rate of exothermic chemical reactions. A vaporizable solvent is used to adjust the gel stiffness. The heat pack can be used in heat transfer or ambient temperature conditions which differ from those anticipated as design conditions.
L'invention concerne un sachet autochauffant jetable (1) dont le fonctionnement repose sur une réaction chimique exothermique. Ce sachet comprend un système auto-modérateur comprenant un gel préformé qui présente un durcissement réversible et modifie la vitesse des réactions chimiques exothermiques. Un solvant vaporisable permet de régler la dureté du gel. Ce sachet chauffant peut être utilisé dans des conditions de tranfert de chaleur ou de températures ambiantes qui diffèrent des conditions cadres régissant la conception.
Sabin Cullen M.
Sabin Martin W.
Gowling Lafleur Henderson Llp
Tempra Technology Inc.
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