Timed aerosol fragrance dispenser for forced-air duct installation
First Claim
1. A timed aerosol fragrance dispenser for dispensing fragrance into air flow emanating from a heating and air conditioning vent register, the fragrance dispenser comprising:
- a fragrance-containing reservoir;
a case containing a microcontroller, a magnetic reed switch having a flapper actuator which detects air flow from the vent register, a piezoelectric assembly coupleable to the reservoir for spraying fragrance from the reservoir in timed bursts, a DC power source and circuitry for converting current from the DC power source to pulses having voltage levels sufficient to activate the piezoelectric assembly.
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Abstract
A timed aerosol fragrance dispenser includes a housing containing a programmable microprocessor, a low-voltage DC power source, a piezoelectric assembly for spraying timed bursts of fragrance, and circuitry for activating the piezoelectric assembly, and a magnetic reed switch air flow detector. A fragrance-containing reservoir attaches to the housing, which incorporates a clip which allows the dispenser to be secured to a heating and air conditioning vent register. When the air flow detector senses air flow from the vent register, the microcontroller in combination with other circuitry generates current pulses having a voltage sufficiently high to activate the piezoelectric assembly. Intervals between pulses are switch selectable. In addition, the normal programming can be overridden to spray fragrance for a set period even in the absence of air flow from the vent register.
7 Citations
6 Claims
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1. A timed aerosol fragrance dispenser for dispensing fragrance into air flow emanating from a heating and air conditioning vent register, the fragrance dispenser comprising:
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a fragrance-containing reservoir; a case containing a microcontroller, a magnetic reed switch having a flapper actuator which detects air flow from the vent register, a piezoelectric assembly coupleable to the reservoir for spraying fragrance from the reservoir in timed bursts, a DC power source and circuitry for converting current from the DC power source to pulses having voltage levels sufficient to activate the piezoelectric assembly. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification