Overpressure ventilation device for a gas mask

Details Overpressure ventilation device for a gas mask Overpressure ventilation device for a gas mask

1998-07-08

2000-04-18

Weiss, John G.

Surgery

Respiratory method or device

Means for removing substance from respiratory gas

12820512, 12820525, 12820612, 12820617, 12820529, A62B 710, A62B 1802, A62B 1808

Patent

active

060502622

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.

REFERENCES:
patent: 3629868 (1971-12-01), Greenlee
patent: 4320755 (1982-03-01), Flint et al.
patent: 5372130 (1994-12-01), Stern et al.
patent: 5404874 (1995-04-01), Meier

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