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US 5,854,284 AGranted
Candle for dispersion of insect repellent based on DEET
OwnerCarl J. Abrahaminventor
Life of this patent
Estimating the term…
Abstract
An insect repellent candle including a liquid containing DEET and a fragrance oil which acts as a carrier for dispersing DEET vapor into the atmosphere upon evaporation of the fragrance oil. The liquid system is contained within the wax of a candle which can be burned to emit DEET vapor into the atmosphere.
Claims6
A candle for repelling flying insects comprising
- a body of wax material which has a melting point of not greater than 225 degrees F., and
- a liquid insect repellent imbedded in the wax material during molding of the candle, the liquid insect repellent including a mixture of DEET and a fragrance oil having volatile fragrance components and retentive components which prevent flash off of the fragrance components, the flash off temperature of the fragrance oil being greater than the melting point of the wax material, such that when the candle is lit, portions of the fragrance components are vaporized and carry with them portions of the DEET into the proximate atmosphere to repel flying insects.
A method of making a candle for use in repelling flying insects before the insects can land on a surface in proximity to the candle comprising
- preparing a liquid insect repellent by mixing DEET with a fragrance oil having volatile fragrance components and retentive components which prevent flash off of the fragrance components,
- molding a mixture of candle wax, which has a melting point of not greater than 225 degrees F., and said liquid insect repellent at a temperature greater than the melting point of the candle wax and less than the flash off temperature of the fragrance components to embed the liquid insect repellent within the candle wax, such that when the candle is lit, portions of the fragrance components are vaporized and carry with them portions of the DEET into the proximate atmosphere to repel flying insects before they can land.
Dependencies are inferred from the claim text.