Electronic smoke apparatus

  • US 10,420,374 B2
  • Filed: 07/07/2015
  • Issued: 09/24/2019
  • Est. Priority Date: 09/18/2009
  • Status: Active Grant
First Claim
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1. An electronic vaping device comprising:

  • a puff sensor assembly includinga controller,a metal casing, anda capacitor arranged in the metal casing and connected to the controller, the capacitor consisting essentially of a flexible conductive membrane and a rigid conductive plate spaced apart by an insulating ring spacer between the flexible conductive membrane and the rigid conductive plate, and an air dielectric between the flexible conductive membrane and the rigid conductive plate;

    wherein the flexible conductive membrane is configured to deform in response to airflow through the electronic vaping device; and

    wherein the puff sensor assembly is configured tosense rate and direction of the airflow through the electronic vaping device,detect a draw action at a mouth-end piece of the electronic vaping device based on the rate and direction of the airflow through the electronic vaping device,detect a blowing action at the mouth-end piece of the electronic vaping device based on the rate and direction of the airflow through the electronic vaping device, andactuate a heater in response to detecting the draw action, but not in response to detecting the blowing action.

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