Stoves and furnaces – Dampers – Stovepipe
Patent
1978-03-29
1980-03-04
Yeung, James C.
Stoves and furnaces
Dampers
Stovepipe
110163, 126296, 13761411, 251304, F23L 300, F16K 100
Patent
active
041911717
ABSTRACT:
A damper assembly for association with the draft hood of a fuel fired heating appliance to control flow of exhaust gases through both the flue tube and the vent pipe. The assembly comprises a pair of damper members shaped to conform to the cross-section of the inlets and outlets of the draft hood. The damper members are spaced apart a distance equal to the distance between the inlet and outlet and carried from a single mounting shaft which extends transversely into the draft hood generally midway between the inlet and outlet openings. Suitable power means are provided to rotate the damper members from a first position in which they are in alignment with the inlet and outlet openings to a second position wherein they are out of alignment and permit free flow of exhaust gases.
REFERENCES:
patent: 404702 (1889-06-01), Greenlee
patent: 713055 (1902-11-01), Burton
patent: 1373960 (1921-04-01), Forcier
patent: 2116648 (1938-05-01), Tapley
patent: 2261535 (1941-11-01), Wheatley
patent: 2997057 (1961-08-01), Toth
patent: 3111136 (1963-11-01), Persidsky
patent: 4103708 (1978-08-01), Huntington
O'Connor Daniel J.
Yeung James C.
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