Air supply units

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1980-07-18

1982-03-23

Recla, Henry J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820421, 12820418, 55482, 55DIG35, 55DIG31, 55359, A62B 700

Patent

active

043207553

ABSTRACT:
A main casing 34 contains a centrifugal fan 10, a filter unit 12 upstream, and a duct 14 downstream for guiding air to a face mask. There is a center plate 36 to which a motor 18, the fan 10, a battery 20 etc. are secured. A back plate 32 is removable to provide access to the electrical components. The filter unit 12 is held in position by an apertured cap 24.

REFERENCES:
patent: 3657740 (1972-04-01), Cialone
patent: 4076021 (1978-02-01), Thompson
patent: 4088461 (1978-05-01), Brauer
patent: 4200092 (1980-04-01), Warncke et al.

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