Timed aerosol fragrance dispenser for forced-air duct...

Details Timed aerosol fragrance dispenser for forced-air duct... Timed aerosol fragrance dispenser for forced-air duct...

2009-01-09

2010-12-21

Gorman, Darren W (Department: 3752)

Fluid sprinkling, spraying, and diffusing

With means to vibrate or jiggle discharge

By electric transducer

C239S070000, C422S123000, C422S124000, C454S337000

Reexamination Certificate

active

07854394

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.

REFERENCES:
patent: 4903583 (1990-02-01), Frazier
patent: 5924597 (1999-07-01), Lynn
patent: 6347992 (2002-02-01), Durbin et al.
patent: 6379242 (2002-04-01), Wiseman et al.
patent: 6722529 (2004-04-01), Ceppaluni et al.

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