Mask, mask shell and seal with improved mounting, mask seal, method of mask manufacture and mask with reduced exhalation noise
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United States of America Patent
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Apr 8, 2008
Grant Date -
Mar 2, 2006
app pub date -
Sep 1, 2004
filing date -
Sep 1, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Mask seal having an embedded mounting member for engaging a mounting member on a mask shell to mount the seal and shell together. Headstrap retention bracket having an indentation for wedgedly engaging a mask shell cylinder to removably mount headstraps to the shell, the indentation circumscribed by an outward wall. Triangular mask seal of styrene-ethylene butylene-styrene copolymer modified with mineral oil.
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Cited Art Landscape
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