Chemical heat source for use in smoking articles
First Claim
1. A chemical heat source comprising:
- a heat chamber having an elongated shape, an open end, and a closed end;
an abutment disposed at the closed end of the heat chamber;
a heat cartridge disposed at the open end of the heat chamber, the heat cartridge having a closed end and an end including an aperture therein, the heat cartridge comprising a chemical agent capable of undergoing an exothermic reaction upon exposure to a liquid;
a frangible partition disposed between the heat cartridge and the abutment; and
an activating solution disposed between the frangible seal and the closed end of the heat chamber.
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Accused Products
Abstract
A non-combustion, chemical heat source includes a heat chamber having a closed end and an open end. The heat chamber includes an apertured heat cartridge disposed at the open end of the chamber, an abutment disposed at the closed end of the chamber, an activating solution, a frangible seal separating the activating solution and the heat cartridge. The heat cartridge includes metallic agents that may come in a variety of configurations. The heat source is activated when the heat cartridge is pushed through and breaks the frangible seal allowing contact between the metallic agents and the activating solution. The heat cartridge includes an aperture in the bottom of the cartridge and absorbent paper surrounding the metallic agents, both of which control the transfer of the activating solution into the metallic agents to cause the chemical reaction. The heat sources may be incorporated into smoking articles and may also be used to heat foods or beverages, in hand warmers, and to heat equipment or materials.
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Citations
71 Claims
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1. A chemical heat source comprising:
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a heat chamber having an elongated shape, an open end, and a closed end;
an abutment disposed at the closed end of the heat chamber;
a heat cartridge disposed at the open end of the heat chamber, the heat cartridge having a closed end and an end including an aperture therein, the heat cartridge comprising a chemical agent capable of undergoing an exothermic reaction upon exposure to a liquid;
a frangible partition disposed between the heat cartridge and the abutment; and
an activating solution disposed between the frangible seal and the closed end of the heat chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 50, 51, 52, 53, 54, 55, 56)
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19. A smoking article comprising:
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tobacco; and
a chemical heat source comprising;
a heat chamber having an open end, a closed end, and a length;
an abutment having a length disposed at the closed end of the heat chamber;
a heat cartridge disposed at the open end of the head chamber having a closed end and an end including an aperture therein;
a frangible partition disposed between the heat cartridge and the abutment; and
an activating solution disposed between the frangible seal and the closed end of the heat chamber. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 64, 65, 66, 67, 68, 69, 70, 71)
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41. A smoking article comprising:
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at least one volatile flavoring agent; and
a chemical heat source comprising;
a heat chamber having an open end, a closed end, and a length;
a stopper having a length disposed at the closed end of the heat chamber;
a heat cartridge disposed at the open end of the heat chamber having a closed end and an end including an aperture therein;
a frangible partition disposed between the heat cartridge and the stopper; and
an activating solution disposed between the frangible seal and the closed end of the heat chamber. - View Dependent Claims (42)
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43. A method of generating heat, comprising:
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providing a heat chamber having a heat cartridge positioned therein;
pushing the heat cartridge toward a closed end of the heat chamber until the heat cartridge reaches a stopper;
puncturing a frangible partition, positioned a distance from the closed end of the heat chamber, to release an activating solution; and
exposing the heat cartridge to the activating solution. - View Dependent Claims (44, 45, 46, 47, 48, 49)
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57. A method of heating tobacco in a smoking article, comprising:
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providing a heat chamber surrounded by tobacco and having a heat cartridge disposed therein;
pushing the heat cartridge toward a closed end of the heat chamber until the heat cartridge reaches a means for stopping the cartridge a distance from the closed end;
puncturing a frangible partition, positioned a distance from the closed end of the heat chamber, whereby an activating solution is released; and
contacting the activating solution with the heat cartridge. - View Dependent Claims (58, 59, 60, 61, 62, 63)
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Specification