Surgical face mask with improved moisture barrier

Details Surgical face mask with improved moisture barrier Surgical face mask with improved moisture barrier

1985-09-11

1987-01-13

Recla, Henry J.

Surgery

Respiratory method or device

Means for keeping viewing member clear

12820619, 128139, A62B 700

Patent

active

046356282

ABSTRACT:
A surgical face mask (10) having a pleated panel (12) for covering the nose and mouth of a wearer, and including head straps (16,18,24,26) for securing the face mask (10) to the wearer. A polyester Sontara material (36) is flame laminated and compressed with an open-cell polyester foam (34) to form an integral laminate moisture barrier which is secured across the top of the pleated panel (12). The barrier restricts the moisture content of vapor from permeating the face mask (10) and clouding eyeglasses, or the like. A polyester top border strip (58) is folded around the top edge of the pleated panel (12), and a malleable stay (38) is sandwiched therebetween. The entire combination, including the moisture barrier (32) is heat seal bonded proximate the top edge of the face mask (10) by heat seal bond techniques.

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patent: 3888246 (1975-06-01), Lauer
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patent: 3971369 (1976-07-01), Aspelin et al.
patent: 3974829 (1976-08-01), Tate, Jr.
patent: 4037593 (1977-07-01), Tate, Jr.
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