Overpressure ventilation device for a gas mask
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United States of America Patent
Stats
-
Apr 18, 2000
Grant Date -
N/A
app pub date -
Jul 8, 1998
filing date -
Jul 22, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An overpressure ventilation device for a gas mask air filter integrated into a case closed by a lid, formed of a caseless centrifugal ventilator connected before the filter, wherein it comprises a support integral with the filter lid enabling the motor and ventilator fan wheel to be centered on the longitudinal axis of the filter, such as to obtain the axial operation of the ventilator. The lid is provided with a well in which to receive the support, which comprises a first lateral wall cooperating with the connection means, a second lateral wall prolonging the first one and a bottom wall provided with apertures to let the air through.
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Family
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