Electricity: conductors and insulators – With fluids or vacuum – Boxes and housings
Reexamination Certificate
2007-03-13
2007-03-13
Estrada, Angel R. (Department: 2831)
Electricity: conductors and insulators
With fluids or vacuum
Boxes and housings
C174S050000, C174S520000, C439S076100, C439S076200, C361S600000
Reexamination Certificate
active
10976176
ABSTRACT:
An Electronic Control Unit which houses electronic circuit for controlling various devices of vehicles in a sealing case is characterized in that the case has a ventilation hole to communicate an interior and an exterior of the case, the ventilation hole comprises a filter for preventing from entering contaminants from the outside, and a sectional area of the ventilation hole is gradually enlarged toward the interior of the case.
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Estrada Angel R.
NSK Ltd.
NSK Steering Systems Co., Ltd.
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