Air treatment apparatus and refill pack
AssigneeBell Flavours & Fragrances Limited
InventorsColin Berrido, Hans-Jurgen Huppert
Life of this patent
Estimating the term…
Abstract
Air treatment apparatus comprises an electric heating element (5) and a refill pack containing wax or paraffin granules (2) incorporating a fragrance or other active substance eg. insect repellent. In another embodiment heat is supplied by a exothermic reaction mixture.
Claims31
Air treatment apparatus for volatilising a fragrance or active substance, the apparatus comprising a receptacle containing particulate wax or paraffin or a heat transfer liquid having said fragrance or other active substance dispersed therein and controlled heating means which is arranged to heat said particulate wax or paraffin or heat transfer liquid to release said fragrance or other active substance into the atmosphere.
A refill pack for a thermal air treatment apparatus, the refill pack comprising a receptacle containing particulate wax or paraffin having a fragrance or other active air treatment substance absorbed therein, said receptacle having a perforated or permeable wall for releasing said fragrance or other active substance into the atmosphere and said receptacle being sufficiently heat-resistant to enable it to be heated in such apparatus to a temperature sufficient to release the fragrance or other active substance into the atmosphere.
Dependencies are inferred from the claim text.