Chimney fire extinguishing apparatus
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United States of America Patent
Stats
-
Mar 3, 1987
Grant Date -
N/A
app pub date -
Nov 1, 1984
filing date -
Nov 1, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus capable of fitting over the upper exposed end of a chimney liner and operable in the event of a chimney fire to extinguish the fire, the invention can be fitted to existing chimney structures without alteration of the chimney or liner structure. The present apparatus includes an air flow restriction plate which is held in a position allowing free flow through the chimney in normal use situations, the plate being held in place by a heat fusible element. The extremely high temperatures existing during even the first moments of a chimney fire cause melting of the fusible element and therefore closing of the air flow restriction plate to restrict air flow through the chimney and thereby quickly extinguish combustion.
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