Method of forming an electrochemical heat source
First Claim
1. A method of forming an electrochemical heat source comprising the steps of:
- a) providing particles comprising at least two metallic agents in electrical contact with one another;
b) extruding the particles into an extrusion; and
c) dividing said extrusion to form an individual heat source.
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Accused Products
Abstract
A method of making an electrochemical heat source is disclosed. The non-combustion heat source includes at least two metallic agents capable of interacting electrochemically with one another, such as magnesium and iron or nickel. The metallic agents may be provided in a variety of forms, including a frozen melt, a bimetallic foil, wire of a first metal wrapped around strands of a different metal, and a mechanical alloy. The metallic agents may be in the form of a powder filling a straw, or small particles extruded with a binder or pressed to form a rod. The powder filled straw or rod may be placed in a heat chamber surrounded by tobacco in a smoking article. An electrolyte solution contacts the metallic agents in the heat chamber to initiate the electrochemical interaction, generating heat which in turn may be used to volatilize nicotine and flavor materials in the tobacco.
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Citations
30 Claims
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1. A method of forming an electrochemical heat source comprising the steps of:
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a) providing particles comprising at least two metallic agents in electrical contact with one another; b) extruding the particles into an extrusion; and c) dividing said extrusion to form an individual heat source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of forming an electrochemical heat source containing magnesium comprising the steps of:
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a) providing particles comprising magnesium and at least one other metallic agent in electrical contact with the magnesium; b) mixing a binder with deionized water to form a gel; c) cooling the particles and gel; d) mixing the cooled particles and cooled gel; e) extruding the mixture of particles and gel into an extruded rod; and f) dividing said rod to form an individual heat source. - View Dependent Claims (19, 20, 21, 22, 23)
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24. An electrochemical heat source comprising:
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a) a rod-shaped member comprising particles of at least two metallic agents in electrical contact with one another capable of interacting electrochemically with one another to produce heat; and b) an electrolyte absorbent material surrounding the rod-shaped member. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification