Method of manufacturing an electrical heater
AssigneePhilip Morris Incorporated
InventorsSeetharama C. Deevi, Patrick H. Hayes, Bernard C. Laroy, Donald E. Miser, William H. Stevens
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Abstract
A smoking system is provided in which a replaceable cigarette containing tobacco flavor material is electrically heated by a set of electrical heater elements contained within a lighter to evolve tobacco flavors or other components in vapor or aerosol form for delivery to a smoker. The cigarette and lighter are adapted to provide air flow patterns through the smoking system such that air flows transversely into the cigarette. Such patterns improve aerosol and flavor delivery to the smoker and reduce the condensation of residual heater-region vapor/aerosol in the smoking system.
Claims14
A method of manufacturing an integrated heater assembly for use in a smoking system for delivering a flavored tobacco response to a smoker, comprising the steps of:
- cutting a sheet of resistive material to form a plurality of heater elements connected to one another at at least one end;
- and
- forming the sheet into a cylindrical shape;
- further comprising the step of shaping the heater elements such that at least a portion of the heater elements are bowed inwardly.
Dependencies are inferred from the claim text.