Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1993-09-15
1994-12-20
Robinson, Ellis P.
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428 362, 428193, 428284, 428287, 428296, 428298, 428299, 428360, 428373, 12820616, 12820617, 12820619, A62B 710, B32B 506
Patent
active
053744586
ABSTRACT:
A molded, cup-shaped face mask especially useful for medical and dental personnel has a first, second and third layer. Edge portions of the layers are substantially free of adhesion to one another, and outer edges of the mask are free of any peripheral seal or the like, so that the edge portions of all three layers are movable relative to each other and present a soft, comfortable feel to the wearer. Exhalation of air through the mask is facilitated by the flexible nature of the edge portions, and during inhalation the flexible edge portions are drawn toward a position of conformed contact with the wearer's face.
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Christoff James D.
Dye Rena L.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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