Electronic smoking article
First Claim
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1. An electronic vaping device comprising:
- an integral heater-wick element configured to draw a pre-vapor formulation from a supply region and to heat the pre-vapor formulation, the integral heater-wick element including a foamed carbon, the foamed carbon having a density of about 0.1 to 1.0 g/cc and an open porosity of at least about 90%.
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Abstract
An electronic smoking article includes a liquid supply region including liquid material and a heater-wick element operable to wick liquid material and heat the liquid material to a temperature sufficient to vaporize the liquid material and form an aerosol. The heater-wick element is formed of a carbon or graphite foam.
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Citations
21 Claims
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1. An electronic vaping device comprising:
an integral heater-wick element configured to draw a pre-vapor formulation from a supply region and to heat the pre-vapor formulation, the integral heater-wick element including a foamed carbon, the foamed carbon having a density of about 0.1 to 1.0 g/cc and an open porosity of at least about 90%. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of producing a vapor in an electronic vaping device, comprising:
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drawing a pre-vapor formulation from a supply region with an integral heater-wick element, the integral heater-wick element including a foamed carbon, the foamed carbon having a density of about 0.1 to 1.0 g/cc and an open porosity of at least about 90%; and heating the pre-vapor formulation from the supply region with the integral heater-wick element to produce a vapor. - View Dependent Claims (20, 21)
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Specification