Stoves and furnaces – Dampers – Electric
Patent
1978-12-01
1980-12-09
Favors, Edward G.
Stoves and furnaces
Dampers
Electric
110163, F23L 300
Patent
active
042378540
ABSTRACT:
A damper construction, comprises, a central hollow tubular pipe pivot portion having an axially extending interior pipe coolant flow passage therethrough and a substantially cylindrical flat plate portion connected to the pipe pivot portion. The pipe pivot portion is mounted for rotation in a bearing formed at diametrically opposite sides of a tubular conduit made up of walls formed by longitudinal pipes arranged side-by-side in a circular pattern and welded together. The bearing includes a hollow portion and it is furnished with coolant which is circulated through the pipes of the conduit. The pipe pivot portion is rotatably supported on the bearing and, in addition to being cooled by the passage defined in the bearing, it includes a passage therethrough which connects into passages formed by a plurality of substantially concentrically arranged first and second arcuate bent tubes of different bend diameters which have respective ends connected to one side of the tubular pipe portion and the opposite side respectively.
REFERENCES:
patent: 1542989 (1925-06-01), Cohnery
patent: 2391010 (1945-12-01), Dalin
patent: 3181527 (1965-04-01), Forsman
patent: 3245401 (1966-04-01), Kast
patent: 4164211 (1979-08-01), Ohnem
Favors Edward G.
Sidepal S.A. Societe Industrielle de Participations Luxembourgeo
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