Patent ID: 7303143

Claim:
A wick assembly for use in a dispensing device that is capable of dispensing volatile material from a reservoir containing that volatile material, the wick assembly comprising: a first wick section formed from a first material; a second wick section formed from a second material that includes granules bound together by a binder and that is different from the first material, wherein the second wick section is positioned abutting against or adjacent to the first wick section; a coupling sleeve for holding the second wick section against, or adjacent to, the first wick section so that ends of both the first and second wick sections terminate in the coupling sleeve and the coupling sleeve holds the wick sections in that abutting or adjacent relationship, wherein the coupling sleeve has a tapering internal bore and both the first and second wick sections terminate in the tapering internal bore; and means for mounting the coupling sleeve to a reservoir so that the first wick section can extend into the reservoir; wherein one of said wick sections has an outer surface that forms an interference fit with the tapering internal bore of the coupling sleeve and the other of said wick sections also contacts the tapering internal bore.