Chimney
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United States of America Patent
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-
Aug 12, 1980
Grant Date -
N/A
app pub date -
Dec 14, 1978
filing date -
Sep 23, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A chimney comprises an external shaft and an inner lining sub-divided into several portions arranged one above the other, each portion having an inner and an outer shell with an annular space containing compressed air therein at a higher pressure than the flue gas, each portion of the inner lining being carried by a support construction so as to be spaced from the external shaft.
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