Surgery – Respiratory method or device – Means for transmitting – or facilitating – voice communication...
Patent
1990-02-09
1992-01-14
Burr, Edgar S.
Surgery
Respiratory method or device
Means for transmitting, or facilitating, voice communication...
12820624, A62B 1808
Patent
active
050800922
ABSTRACT:
The protective mask (1) comprises essentially a face-shield (2) covering the user's face, made by rigid, resilient and transparent material and rimmed by a bellows seal; the belts (4), the operational means interfacing to the outside world, the filters, the ocular surfaces (12) and the other elements with which the mask is provided are fitted to the rigid structure of the face-shield (2) which does not transmit the possible deformations due to the weight of the means to the seal (11); said seal (11) provided only the necessary tightness with high comfort allowing the continuous use of the mask even during many consecutive days and nights (see FIG. 3).
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Spriomask--Masque A Champ Visuel Integral.
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Burr Edgar S.
Lewis Aaron J.
SGE Societa Generale Elastomeri S.p.A.
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