Fireplace damper and air flow control

Details Fireplace damper and air flow control Fireplace damper and air flow control

1981-05-06

1983-12-06

Yeung, James C.

Stoves and furnaces

Dampers

Stove

126285A, 126288, F23L 300

Patent

active

044186800

ABSTRACT:
A damper and air flow control for use with fireplaces or stoves having a plurality of heat tubes extending through the exhaust passage for smoke and other products of combustion includes a plurality of slats secured in spaced side-by-side relation to one another. Each slat is adapted to be positioned above a heat tube when the damper is in open position so as to leave the spaces between the heat tubes substantially unobstructed. Each slat has a width greater than the space between the heat tube over which it is positioned when the damper is open and an adjacent heat tube so that the slats may be moved to a position where they substantially block the spaces between the heat tubes. Control apparatus is provided to move the slats between open, closed, or partially closed positions.

REFERENCES:
patent: 201494 (1878-03-01), Briggs
patent: 737382 (1903-08-01), Frederick
patent: 1434083 (1922-10-01), Brander
patent: 1468964 (1923-09-01), Groth
patent: 2549365 (1951-04-01), Borge
patent: 3322417 (1967-05-01), Mitchell
patent: 3943995 (1976-03-01), Banko

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