Full View Diver's Mask.
DEPARTMENT OF THE NAVY WASHINGTON D C
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The invention relates to a face mask having a rigid transparent member defining a frontal portion and two curved side portions allows for wide-angle vision with little distortion. An outwardly bulging nose portion is provided to permit a close fitting on the face and to reduce the masks entrained mass. A resilient seal formed with an annular cross-sectional configuration is fitted about the periphery of the transparent member to ensure a sealed fitting on a number of differently contoured faces by resiliently compensating for the dissimilar facial features. Including the disclosed seal minimizes discomfort when the mask is worn for prolonged periods of time since the seal does not dig into the fleshy portions of the face.
- Human Factors Engineering and Man Machine Systems