Automatic control circuitry for an electrode boiler humidifier
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 19, 1990
Grant Date -
N/A
app pub date -
May 5, 1987
filing date -
May 9, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
A humidifier boiler has a plurality of electrodes supplied with electric current through circuitry which includes at least one solid state switch or relay such as inverse parallel thyristors or triacs arranged to switch at zero voltage so that, when the humidifier is called upon to vary the quantity of water vapor output from the boiler through an outlet pipe in response to a control signal from a humidity controller, the control signal causes the duration of the 'on' and/or 'off' periods of the, or each, solid state switch or relay to be varied in order to vary the power to the electrodes.
First Claim
Other Claims data not available
Family
Loading Family data...
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- H05B Class
- 0 % this patent is cited more than
- 35 Age