Respiratory mask
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United States of America Patent
Stats
-
Dec 6, 2011
Grant Date -
Sep 10, 2009
app pub date -
Aug 22, 2008
filing date -
Mar 10, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A respiratory mask includes: a rigid mask frame having a ring portion, a loop portion spaced apart from the ring portion, and rib portions interconnecting the ring portion and the loop portion, the rigid mask frame defining a frame space; and a single piece of a flexible mask body having a flat central portion, a surrounding portion extending outwardly and curvedly from the flat central portion, and a peripheral end portion flaring from the surrounding portion. The flat central portion is formed with an annular flange sleeved on the ring portion. The peripheral end portion is disposed outwardly of the frame space. The surrounding portion extends into the frame space and is restrained by the rib portions and the loop portion of the mask frame.
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