Device for evaporating volatile compositions
First Claim
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1. A device comprising:
- a housing;
a fan assembly positioned within said housing;
a delivery engine positioned within said housing and downstream of said fan assembly, wherein said delivery engine comprises;
a reservoir containing a liquid volatile composition, anda microporous membrane in fluid communication with said liquid volatile composition when said delivery engine is activated; and
wherein said fan assembly is configured to move a volume of air at least partially over said microporous membrane to evaporate said liquid volatile composition into the atmosphere,wherein said microporous membrane comprises an evaporative surface area of about 2 cm2 to about 100 cm2.
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Abstract
A device comprises a delivery engine comprising a volatile composition and a microporous membrane, and an evaporation assistance element. In some embodiments the device includes a fan is configured to move a volume of air over the microporous membrane to facilitate evaporation of the volatile composition into the atmosphere.
26 Citations
24 Claims
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1. A device comprising:
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a housing; a fan assembly positioned within said housing; a delivery engine positioned within said housing and downstream of said fan assembly, wherein said delivery engine comprises; a reservoir containing a liquid volatile composition, and a microporous membrane in fluid communication with said liquid volatile composition when said delivery engine is activated; and wherein said fan assembly is configured to move a volume of air at least partially over said microporous membrane to evaporate said liquid volatile composition into the atmosphere, wherein said microporous membrane comprises an evaporative surface area of about 2 cm2 to about 100 cm2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A device comprising:
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a delivery engine comprising; a reservoir containing a liquid volatile composition, and a microporous membrane in fluid communication with said liquid volatile composition when said delivery engine is activated; an evaporation assistance element configured to evaporate about 15 mg/hr to about 70 mg/hr of said liquid volatile composition from said microporous membrane into the atmosphere, wherein said microporous membrane comprises silica. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A device comprising:
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a delivery engine comprising; a reservoir containing a liquid volatile composition, and a microporous membrane in fluid communication with said liquid volatile composition when said delivery engine is activated, wherein said microporous membrane comprises an evaporation surface area of about 2 cm2 to about 25 cm2; and wherein said delivery engine comprises an evaporation rate of about 15 mg/hr to about 70 mg/hr of said liquid volatile composition from said microporous membrane to the atmosphere.
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Specification