Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Patent
1981-08-21
1984-06-19
Recla, Henry J.
Surgery
Respiratory method or device
Means for removing substance from respiratory gas
12820616, 12820619, 12820624, 12820711, 12820712, A62B 710
Patent
active
044548818
ABSTRACT:
A face mask to be worn upon the face of a wearer and for providing filtering of particular impurities in the air, including at least one layer of flexible material molded generally to conform to the contours of the face of the wearer and forming a flexible support carrier for filter material and with the one layer of flexible material allowing the passage of air through the one layer, a separate layer of filter material supported by the one layer of flexible material and with the filter material filtering out the particular impurities in the air, a molded, rubber-like bead member extending around the peripheral edge of the layers forming the face mask and with the molded rubber-like bead member providing an edge seal between the face mask and the face of the wearer, and the bead member including membrane portions extending inwardly to the interior of the mask from the bead member at least in the areas of the sides of the nose and upper cheekbones of the wearer for providing additional sealing in those areas.
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patent: 4319567 (1982-03-01), Magidson
patent: 4384577 (1983-05-01), Huber et al.
Huber Otto L.
Magidson Mark
Moldex/Metric Products, Inc.
Recla Henry J.
Reichle Karin M.
Roston Ellsworth R.
Schwartz Charles H.
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