Electric heating – Heating devices – Resistive element: igniter type
Patent
1984-10-25
1986-02-18
Albritton, C. L.
Electric heating
Heating devices
Resistive element: igniter type
219274, 219272, 239136, F22B 128
Patent
active
045714851
ABSTRACT:
An aroma generator for discharging aromatic vapors into the atmosphere. The generator is constituted by a replaceable aroma cube insertable into the well of a heater unit having a heater element positioned at the base of the well. The cube takes the form of an open-ended chimney having a shallow box coaxially supported therein at its lower end to define an outlet air passage in the spaces therebetween, the underside of the box being open to expose its interior to heat emitted by the base heater. Held within the box is a pad saturated with a volatile aromatic liquid, the box and the pad having a center hole therein to form an inlet air passage. Because of the pressure differential in the chimney created by the heated and expanding air at the lower end thereof, relatively cool air in the chimney is drawn downwardly through the inlet air passage and is heated by the base heater. This produces a convection stream of hot air that flows across the pad to volatilize the liquid, the resultant aromatic vapors being discharged into the atmosphere through the outlet passage.
REFERENCES:
patent: 2513919 (1950-07-01), Costello
patent: 2616024 (1952-10-01), Laibow
patent: 2896853 (1959-07-01), Curran
patent: 2942090 (1960-06-01), Diehl
patent: 2988284 (1961-06-01), Smith
patent: 3575346 (1971-04-01), Roth
patent: 3895928 (1975-07-01), Moran
patent: 4361279 (1982-11-01), Beacham
patent: 4467177 (1984-08-01), Zobele
Albritton C. L.
Ebert Michael
Walberg Teresa J.
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