Apparatus for dispensing a vapour into an air flow

Details Apparatus for dispensing a vapour into an air flow Apparatus for dispensing a vapour into an air flow

2002-08-27

2008-01-22

Hopkins, Robert A. (Department: 1724)

Gas and liquid contact apparatus

With external supply or removal of heat

Heat producer

C261S026000, C261S030000, C261S124000, C261SDIG065, C261SDIG088, C261SDIG089, C422S124000

Reexamination Certificate

active

07320459

ABSTRACT:
An apparatus for dispensing a vapor of a liquid into a ventilation system includes a vessel for holding the liquid, a heater for heating the liquid in the vessel to form a vapor, and means for delivering the vapor into the air flow passing through a passageway of the ventilation system. The liquid may be an essential oil or other liquid. An aerator may be used to deliver the vapor into the air flow. The apparatus may also include one or more additional liquid reservoirs, a controller which regulates the operation of the heater in response to user control, an air flow detector, and data stored in a controller memory.

REFERENCES:
patent: 3442602 (1969-05-01), Diehl
patent: 4166087 (1979-08-01), Cline et al.
patent: 5651942 (1997-07-01), Christensen
patent: 6371451 (2002-04-01), Choi
patent: 7016290 (1995-01-01), None
patent: WO 97/32611 (1997-09-01), None
patent: WO 00/37848 (2000-06-01), None
patent: WO 03/019082 (2003-03-01), None
“Glade PlugIns”; Internet Ad; downloaded Jul. 12, 2004.

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