Patent ID: 7540432
Filing Date: 2009-06-02
Classification: A01M,A61L,B60H

Abstract:
1. A passive dispensing device for a liquid active material, the dispensing device comprising: an upper housing portion for receiving a container for holding and dispensing a liquid active material, wherein the upper housing portion includes an interior cavity and wherein the container includes a wick extending from inside the container to an area outside the container; a lower housing portion that extends downwardly from the upper housing portion, wherein the lower housing portion defines a recess between the upper and lower housing portions and includes first and second legs that extend downwardly from the upper housing portion and outwardly from the recess; a first set of vents disposed in a first body portion of the upper housing portion; a second set of vents disposed in a second body portion of the upper housing portion; and a louver for opening and closing the first and second sets of vents, wherein the dispensing device has an operative position in which the first and second legs are disposed on a support surface, the container is retained in the recess with the wick extending upwardly into the interior cavity, and the container is spaced above the support surface and disposed between the first and second legs to allow convective air flow under the container, between the container and the first and second legs past the recess and the container, and through the device to dispense the active material from the upper housing.