Mask assembly
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United States of America Patent
Stats
-
Jan 15, 2008
Grant Date -
Apr 21, 2005
app pub date -
Oct 12, 2004
filing date -
Sep 7, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A respiratory mask assembly for use in the delivery of non-invasive positive airway pressure to a user. The assembly includes a rigid shell having a channel portion defined by an inner wall, an outer wall and a channel floor, a face-contacting cushion acting to space the shell away from the user's face and a sealing tab extending from the cushion to engage a portion of the shell to provide a continuous airtight seal between the cushion and the shell. A retaining ring within the mask assembly is configured to secure the cushion to the shell. The retaining ring has a first portion including at least one clip configured to pass through at least one slot portion such that an underside surface of the at least one clip engages a section of the shell when the retaining ring is positioned within the channel.
First Claim
Family
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