Patent ID: 7651666
Filing Date: 2010-01-26
Classification: A01M,A61L

Abstract:
1. A refill suitable to actively dispense a volatile air treatment chemical upon being heated, the refill comprising: a housing having an essentially transparent wall with one rear face of the wall configured to be suitable to face a heat source, and a front face of the wall on an essentially opposite side of the wall from the rear face, wherein the wall defines a reservoir well configured to be suitable to open rearwardly toward the heat source; volatile air treatment chemical being disposed in the well in a manner suitable to volatize rearwardly out of the well towards the heat source as it passes out from the refill upon being heated by the heat source; the housing also having a second well configured to be suitable to face frontally away from the heat source when the reservoir well faces the heat source, such that the reservoir well will be positioned between the heat source and the second well when the second well is positioned adjacent the heat source; wherein the amount of volatile air treatment chemical in the reservoir well can be viewed from a frontal side of the wall through the front face of the wall.