Patent ID: 7854393

Claim:
A clip on type air freshener device comprising: a housing having openings in walls thereof permitting air flow through a cavity in the housing, a bottle for holding a supply of fragrance bearing liquid, a wick projecting into such liquid in the bottle and having a portion of thereof projecting through and beyond an open ended neck on the bottle, said wick projecting portion being disposed in said housing cavity and having an axis coincident with the length of the wick, a wick cover comprising an open ended sleeve having an axis aligned with the axis of the wick projecting portion and movably mounted on said housing for movement in a direction toward and away from the open ended neck on the bottle along the length of the axis of said wick projecting portion selectively in a first position to completely cover said wick projecting portion and in a second position to leave at least a portion of said wick projecting portion exposed to air flow through said housing cavity via said openings, a finger engageable member having a hole, said hole aligned with the axis of the sleeve and with a cam surface therethrough for moving said wick cover, the finger engageable member being movable along a circular path about the axis of the sleeve and engaging a cam follower on said sleeve, wherein an end of said sleeve passes through said hole, and an opening in an upper end wall of said housing, said opening axially aligned with said hole in the finger engageable member, wherein an end of the sleeve passes through said hole in said finger engageable member and said opening thereby exposing to view an upper end portion of the sleeve outside of said housing and thereby visually indicating the amount of wick exposed during use of the device.