Fireplace heated grate
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United States of America Patent
Stats
-
Oct 11, 1983
Grant Date -
N/A
app pub date -
May 4, 1981
filing date -
May 4, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hollow heated grate for a fireplace is provided with an electric motor and a blower inside of the heated fireplace enclosure for circulating cool air from the area to be heated through the hollow grate and returning the heated air to the area to be heated. The electric motor and blower are physically enclosed in a metal plenum box. To avoid overheating the electric motor windings, cool air is circulated over the motor windings when the electric motor is running and cool air is also circulated over the electric motor windings when the electric motor is not running by novel diversionary air vent means including sensing means for opening a movable closure adjacent the diversionary air vent when the electric motor and blower are not circulating cool air.
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