Avionic tray and detachable metering plate
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United States of America Patent
Stats
-
Dec 8, 1992
Grant Date -
N/A
app pub date -
Aug 29, 1991
filing date -
Aug 29, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An avionic tray assembly for supporting electronic instruments on a shelf and controlling the volume of cooling air between the instrument and a plenum chamber is described. The tray bottom includes a pocket formed by a straight side wall extending downwardly at an angle within the range of 30.degree. to 60.degree. and terminating in a rim surrounding the opening to the plenum chamber. A flexible gasket secures an apertured metering plate within the pocket. The gasket includes an upper portion which is arranged to compressed between the bottom of an installed instrument, the sloping wall of the pocket and the upper surface of the metering plate adjacent the periphery thereof to seal the instrument to the plenum chamber so that the apertures in the metering plate control the volume of cooling air flowing between the instrument and the plenum chamber.
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