Electronically controlled electric steam humidifier

Electric heating – Heating devices – Combined with diverse-type art device

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Details

122379, 219272, 219273, 219275, 219286, 219288, 219289, 219293, 219362, 261142, 261DIG46, H05B 102, H05B 360, F22B 130

Patent

active

047059362

ABSTRACT:
An electronic steam humidifier includes a reservoir drawer having boiling electrodes submerged in water provided by a solenoid fill valve energized by a dual reference level current start-up circuit which is responsive to the current flow through the water from an AC source as measured by a current detection circuit. A system operation counter initiates a flush/drain operation after a certain time period of operation to flush mineral deposits from the reservoir through a siphon tube to a drain trough. A current control circuit includes a pulse width modulator connected to a triac for reducing the average current to the boiling electrodes during an overcurrent condition as indicated by a comparator coupled to the current detection circuit. A reservoir interlock mechanism initiates a flush/drain operation when the reservoir drawer assembly is removed for maintenance. A blower control energizes a blower relay so that a furnace or air conditioner blower may be operated to distribute the steam generated by the humidifier.

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"Electronic Electrode Steam Humidifiers", (form 79-5), Nortec Industries Inc., Ogdensburg, N.Y., 13699.
Autoflo X-15 Power Humidifier, S-X-15-6'78, Autoflo Division of Masco Corp., Detroit, Mich., 48239.

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