Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Patent
1992-05-19
1993-08-31
Price, Carl D.
Stoves and furnaces
Hot-air furnaces
Liquid or gaseous fuel
431 16, 431 22, F23N 524, F24H 300
Patent
active
052399800
ABSTRACT:
A forced air furnace control system for preventing the buildup of dangerous concentrations of CO gas within a building airspace. A CO sensor is mounted in the air exit plenum of the furnace and connected in a circuit which produces an output signal when the concentration of CO gas in the plenum reaches a predetermined unsafe level. A disable control signal is then triggered through the circuit for switching the furnace to its nonoperating mode. A latch circuit is provided for latching the furnace control in the nonoperating mode independent of the disable control signal. A reset circuit is provided to manually override operation of the latch circuit and re-enable the furnace control for switching to the operating mode.
REFERENCES:
patent: Re30936 (1982-05-01), Kmetz et al.
patent: 2532214 (1950-11-01), Willenborg
patent: 2757362 (1956-07-01), Gutkowski
patent: 3582247 (1971-06-01), Faure
patent: 4171944 (1979-10-01), Hirschmann
patent: 4221206 (1980-09-01), Haas
patent: 4525137 (1985-06-01), Tomioka et al.
patent: 4534727 (1985-08-01), Imajima
patent: 4561288 (1985-12-01), Moenkhaus
patent: 4682156 (1987-07-01), Wainwright
patent: 4715214 (1987-12-01), Tveter et al.
patent: 5039006 (1991-08-01), Habegger
Hilt Fay E. J.
Locke James W. E.
LandOfFree
Forced air furnace control system and method of operation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Forced air furnace control system and method of operation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Forced air furnace control system and method of operation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2291852