Flue control assembly

Details Flue control assembly Flue control assembly

1977-07-25

1979-11-20

Kundrat, Andrew V.

Combustion

Timer, programmer, retarder or condition responsive control

Of or by exhaust damper or exhaust pump

236 1G, F23N 300

Patent

active

041749421

ABSTRACT:
This flue control assembly is for use with a combustion chamber, such as an oven, having a thermostatically controlled burner valve circuit and includes a damper pivotally mounted in the oven flue for rotation between open and closed positions by an air actuated, movable arm assembly. The air actuated arm assembly is supplied with air from a valve controlled air pump and the valve includes a movable valve element which is resiliently connected to the movable arm and the movable valve element is moved into position to condition the supply of air from the pump by movement of the damper. An electrical switching system connected to the burner valve circuit ensures that the burner valve cannot be actuated unless the damper is in the open position in the flue.

REFERENCES:
patent: 2112554 (1938-03-01), Beam
patent: 2165488 (1939-07-01), Klims
patent: 2326230 (1943-08-01), Klinker
patent: 3010451 (1961-11-01), Hodgins
patent: 3090558 (1963-05-01), Vaughn
patent: 4017024 (1977-04-01), Grostick

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