Protective cover for an exhaust fan motor
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United States of America Patent
Stats
-
Jan 22, 1985
Grant Date -
N/A
app pub date -
Dec 18, 1981
filing date -
Dec 31, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A protective cover for an exhaust fan motor or the like actuable to withdraw the same by normally restrained positive pressure from the motor upon the monitoring of hot fumes representing a fire, thereby to expose the motor to a cooling environment little different from or substantially the same as that of its normal operation.
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