Humidifier having multi-stage fans
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United States of America Patent
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Jun 2, 1998
Issued Date -
N/A
app pub date -
Mar 1, 1996
filing date -
Jun 6, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A humidifier is disclosed having operation, speed, and humidity control for the distribution of humidified air. The humidifier contains a multiplicity of air moving devices, e.g., fans, to enable large quantities of humidified air to be distributed in an area or conversely, only a small amount of humidified air to be distributed in the area in order to maintain the humidity level already achieved. The humidifier requires only the power necessary to achieve or maintain the level desired without excess use of power. At least one operating control is used to selectively operate one or all of the air moving devices, and at least one speed control is also preferably used with the operating control for selectively increasing or decreasing the speed of one or all of the air moving devices. Along with the operating control and speed control, a humidity control may pre-select humidity between a predetermined minimum and maximum. Furthermore, the level of fan noise may be substantially reduced when the number of air moving devices are reduced and/or decreased in speed.
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