Gas and liquid contact apparatus – Fluid distribution – Pumping
Patent
1993-10-15
1994-12-06
Miles, Tim
Gas and liquid contact apparatus
Fluid distribution
Pumping
261 99, 261DIG65, 422124, B01F 304
Patent
active
053708296
ABSTRACT:
A dispenser having a housing and at least one inlet vent and at least one outlet vent about the housing is shown. A fan, preferably a centrifugal fan, is operated by a battery and directs air into and out of the vents. A cartridge containing a vaporizable substance, such as a fragrant oil or gel, is located adjacent the inlet vent. The centrifugal fan pulls air in the inlet vent, at least partially across the cartridge, upward through a portion of the housing, and radially outward through the outlet vent. Preferably, a rim of the cartridge and a shelf inside the housing and adjacent the rim are adapted to form substantially a boundary between a lower and a middle compartment in the housing. The shelf and the rim cooperate to prevent air from circulating below the shelf and entering the lower compartment. At least one upper rib and a housing of the fan are adapted to form a boundary between the middle compartment and an upper compartment. The fan housing and upper rib cooperate to prevent air from entering the upper compartment except through the fan. Preferably, a shield or a wall separates the fan from the battery such that the vaporized substance does not undesirably interfere with the electrical operation of the battery.
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Miles Tim
Waterbury Companies Inc.
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