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US 8,910,640 B2Granted
Wick suitable for use in an electronic smoking article
AssigneeR.J. Reynolds Tobacco Company
InventorsSteven Benson Sears, Grady Lance Dooly, David William Griffith, Jr., Andries Don Sebastian, Yi-Ping Chang
Life of this patent
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Abstract
The present disclosure relates to an electronic smoking article that provides for improved aerosol delivery. Particularly, the article comprises a wicking element useful for improving delivery of aerosol precursor to a heating element. In particular, the wick can take on a brush-like configuration. The present disclosure further relates to methods of forming an aerosol in a smoking article.
Claims36
A smoking article comprising:
- a hollow shell comprising an exterior wall with a mouthend and including a wick formed of a plurality of individual filaments aligned in a brush-like configuration, the individual filaments each comprising a first end that is affixed to a holding member and an opposing free end, and the mouthend of the hollow shell being configured for draw of formed aerosol by a user;
- and
- an aerosol precursor composition, wherein:
- the wick is positioned within the hollow shell such that the free ends of the filaments are directed toward an interior of the hollow shell and so as to transport the aerosol precursor material inward, relative to the exterior wall, from the holding member toward a central axis extending the length of the hollow shell;
- or
- the wick is positioned within the hollow shell such that the free ends of the filaments are directed outward from the central axis extending the length of the hollow shell and so as to transport the aerosol precursor material outward from the central axis toward the exterior wall of the hollow shell.
3 more elements
Dependencies are inferred from the claim text.