Electricity: conductors and insulators – With fluids or vacuum – Boxes and housings
Patent
1998-09-30
2000-06-13
Reichard, Dean A.
Electricity: conductors and insulators
With fluids or vacuum
Boxes and housings
174 17VA, H05K 500
Patent
active
060752041
ABSTRACT:
In a food processing plant electronics used to monitor and control various food processing methods are subject to harsh environmental conditions such as thermal shock, outside contaminants and condensation. An electronics enclosure for minimizing such problems places the electronics in an interior enclosure which is separated from and surrounded by an exterior enclosure. Dry nitrogen gas is input to the interior box to create an internal pressure greater than ambient pressure. The gas is vented to the exterior box which is also maintained at greater than ambient pressure. Thermal shock is reduced by spacing the internal and external boxes apart using thermally non-conductive spacers.
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Celauro Paul J.
Leszcynski John J.
Pace Salvatore P.
Reichard Dean A.
Schoneman William A.
The BOC Group Inc.
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