F - Mech Eng,Light,Heat,Weapons – 24 – B
Patent
F - Mech Eng,Light,Heat,Weapons
24
B
126/62
F24B 5/00 (2006.01) F23L 13/00 (2006.01) F24B 5/02 (2006.01)
Patent
CA 1166104
TITLE INLET AIR CONTROL FOR STOVE OR FURNACE ABSTRACT A control regulates the rate of flow of com- bustion air flowing into an airtight stove or furnace 10 containing a fire. A control element 15 or 45 is arranged in communication with the air inflow stream and moves in response to the velocity of the flowing air. The control element 15 or 45 moves to constrict the area of the inflow stream as air velocity increases and to open the area of the inflow stream as air velocity di- minishes. Springs 25 and 26 or 60-62 bias the control element toward a maximum opening and the spring bias is non-linear to provide increasing resistance to movement as the control element approaches a closed position. The spring bias system is preferably adjustable to vary the air inflow rate that is otherwise kept steady by the control element.
406737
Cumpston Edward H.
Kirby Eades Gale Baker
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