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Electronic smoking article

  • US 9,848,644 B2
  • Filed: 02/20/2014
  • Issued: 12/26/2017
  • Est. Priority Date: 02/22/2013
  • Status: Active Grant
First Claim
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1. An electronic vaping device comprising:

  • a supply region configured to store a liquid material; and

    an integral heater-wick element in fluidic communication with the supply region, the integral heater-wick element including a heating portion and at least one wicking portion, the integral heater-wick element formed of a foamed carbon, the foamed carbon having impurities of less than about 100 ppm and a heat capacity of about 0.5 to 1.0 J/g-K,the at least one wicking portion extending into the supply region,the integral heater-wick element configured to transfer the liquid material from the supply region, through the at least one wicking portion, and to the heating portion via pores in the foamed carbon.

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