ELECTRONIC CIGARETTE
First Claim
1. An electronic cigarette comprising a generally cylindrical housing with a proximal mouth end and a distal end, and within the housing:
- a vaporizer to produce vapor to be delivered to the mouth end;
a battery; and
sensor circuitry to detect a user drawing on the mouth end and connect the battery to power the vaporizer to produce vapor,the vaporizer comprising;
a tube having inlet and outlet ends and extending longitudinally of the housing, first and second supports at opposite ends of the tube for directing airflow into and out of the tube from the inlet to the outlet, wherein the first support is located at the inlet end of the tube and the second support is located at the outlet end of the tube,a porous matrix containing a vaporizable liquid, extending around the tube, wicking fibers extending through side openings in the tube and configured to wick the vaporizable liquid from the porous matrix into the tube,an electrical heater coil in the tube configured to be powered by the battery to vaporize liquid on the wicking fibers in the tube, so that vapor is supplied along the tube to the outlet end when the user draws thereon, andan airflow restrictor to channel the flow of air along the tube to the heater coil, wherein the airflow restrictor is located in the tube between the first support and the heater coil.
1 Assignment
0 Petitions
Accused Products
Abstract
An electronic cigarette has a vaporizer to produce vapor to be delivered to its mouth end. The vaporizer includes a tube having inlet and outlet ends. A porous matrix containing a vaporizable liquid, extends around the tube. Wicking fibers extend through side openings in the tube and are configured to wick the vaporizable liquid from the porous matrix into the tube, and electrical heater coil is powered by a battery to vaporize liquid on the wicking fibers in the tube, so that vapor is supplied along the tube end when the user draws on mouth end. An airflow restrictor is provided to accelerate the flow of air along the tube to the heater coil.
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Citations
21 Claims
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1. An electronic cigarette comprising a generally cylindrical housing with a proximal mouth end and a distal end, and within the housing:
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a vaporizer to produce vapor to be delivered to the mouth end; a battery; and sensor circuitry to detect a user drawing on the mouth end and connect the battery to power the vaporizer to produce vapor, the vaporizer comprising; a tube having inlet and outlet ends and extending longitudinally of the housing, first and second supports at opposite ends of the tube for directing airflow into and out of the tube from the inlet to the outlet, wherein the first support is located at the inlet end of the tube and the second support is located at the outlet end of the tube, a porous matrix containing a vaporizable liquid, extending around the tube, wicking fibers extending through side openings in the tube and configured to wick the vaporizable liquid from the porous matrix into the tube, an electrical heater coil in the tube configured to be powered by the battery to vaporize liquid on the wicking fibers in the tube, so that vapor is supplied along the tube to the outlet end when the user draws thereon, and an airflow restrictor to channel the flow of air along the tube to the heater coil, wherein the airflow restrictor is located in the tube between the first support and the heater coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. (canceled)
Specification