Air supply apparatus

Details Air supply apparatus Air supply apparatus

1997-12-24

1998-10-06

Weiss, John G.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820125, 12820122, 12820525, A62B 700

Patent

active

058162437

ABSTRACT:
An emergency air supply mask is provided including a head assembly having a transparent face portion defining a rear peripheral edge. The face portion has a plurality of bores formed therein. A filter unit includes a transparent plate and at least one bore formed therein. The plate is coupled in spaced relationship to the face portion of the head assembly via a closed periphery. Such periphery has an opening for allowing the selective insertion of a transparent filter therein.

REFERENCES:
patent: 4440163 (1984-04-01), Spergel
patent: 4702243 (1987-10-01), Saith
patent: 5069205 (1991-12-01), Urso
patent: 5191317 (1993-03-01), Toth et al.
patent: 5410757 (1995-05-01), Vienamo et al.
patent: 5562092 (1996-10-01), George

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