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An aroma-dispensing cartridge and holder assembly attachable to an air vent in the interior of an automobile. When activated, the assembly functions to diffuse an aromatic vapor into the forced air stream emitted through the vent into the interior. The assembly is constituted by a holder provided wi

An aroma-dispensing cartridge and holder assembly attachable to an air vent in the interior of an automobile. When activated, the assembly functions to diffuse an aromatic vapor into the forced air stream emitted through the vent into the interior. The assembly is constituted by a holder provided with an array of parallel slots and a replaceable cartridge which is telescoped therein. The cartridge contains a porous pad impregnated with a liquid scent and includes a like array of slots. The inserted cartridge is axially shiftable relative to the holder from an inactive position in which the holder and cartridge slots are out of registration to effectively seal the pad, to an active position in which the slots lie in registration, as a consequence of which the forced air stream from the vent passes through the porous pad to volatilize the liquid scent.

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An aroma-dispensing system comprising a cartridge and holder assembly which when activated functions to diffuse an aromatic vapor into a forced air stream intercepted by the assembly, said assembly operating in combination with means in which said stream is emitted through a vent grill formed by at

An aroma-dispensing system comprising a cartridge and holder assembly which when activated functions to diffuse an aromatic vapor into a forced air stream intercepted by the assembly, said assembly operating in combination with means in which said stream is emitted through a vent grill formed by at least one slat, said assembly comprising: A. an open-top holder having a rectangular cross section, the front and rear walls thereof having corresponding arrays of parallel slots, said holder being provided at its rear wall with releasable clip means provided with a pair of cooperating flexible elements engaging the slat of the grill to secure the assembly thereto, whereby the forced air therefrom is intercepted by the assembly; B. a cartridge telescopically receivable in the holder and having front and rear walls provided with similar arrays of parallel slots, said cartridge housing a pad of porous material permeable to said forced air stream and impregnated with a liquid scent; and C. control means to render said cartridge axially shiftable relative to the holder from an active position in which the holder and cartridge slots lie in registration, thereby permitting the forced air stream to pass through the pad to volatilize the liquid to produce said aromatic vapor, to an inactive position in which the slots are out of registration to effectively seal the cartridge.