Sanitary face mask

Details Sanitary face mask Sanitary face mask

1975-08-27

1977-08-02

Michell, Robert W.

Surgery

Truss

Pad

1281466, 2 9, 132 1R, A61F 900, A61M 1500

Patent

active

040389790

ABSTRACT:
In one embodiment of the present invention, a frame defining a face mask is disclosed having a flexible transparent disposable filter material removably retained about the frame. Another embodiment of the present invention discloses an elastomeric frame which tapers to a feathered edge at the periphery intended to contact the face, said elastomeric frame engaging a transparent facial insert, which insert includes means for removably retaining filter material. The mask is further provided with a disposable sanitary perforated bag-shaped web which envelops the frame and transparent facial insert to protect the exposed surfaces thereof from contamination while allowing the user to breathe freely.

REFERENCES:
patent: 1359073 (1920-11-01), King et al.
patent: 3186005 (1965-06-01), Gentile
patent: 3772707 (1973-11-01), Alosi et al.
patent: 3789428 (1974-02-01), Martin
patent: 3918448 (1975-11-01), McCosker

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