Stoves and furnaces – Dampers – Electric
Patent
1981-04-01
1983-03-22
Scott, Samuel
Stoves and furnaces
Dampers
Electric
126 77, 126 61, 126126, 126136, F23L 1300
Patent
active
043771530
ABSTRACT:
A heating device for consuming a combustionable fuel, having an internal combustion chamber with top, sides, ends, and a grate forming the bottom; an outer shell, having a top, sides, ends, and a bottom in spaced relation below the grate; a primary air supply adapted to distribute the air beneath the grate; a secondary air supply adapted to preheat the secondary air prior to entering the combustion chamber at a location above the grate; an axis door in one end suitable to pass fuel within the combustion chamber; an exhaust chamber between the combustion chamber and the outer shell adapted to extend across the top and at least partially down a side in fluid communication with the combustion chamber; an exhaust port adapted to exhaust the combustion gases from the exhaust chamber externally of the device; a damper adapted to selectively divert exhausting gases in the exhaust chamber at least partially down one side, to extend the distance travelled by the exhausting gases to improve secondary combustion and thermal heat transfer prior to exiting the exhaust gases from the device. A plurality of baffles adapted to extend at least partially down a side of the exhaust chamber and adapted to serpentine the exhausting gases through an extended path within the exhaust chamber when the damper is closed.
REFERENCES:
patent: 138093 (1873-04-01), Littlefield
patent: 390119 (1888-09-01), Evans
patent: 507093 (1893-10-01), Alger
Anderson G.
Flagg Rodger H.
Scott Samuel
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