Mask with inhalation valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 21, 2006
Grant Date -
Nov 21, 2002
app pub date -
May 6, 2002
filing date -
May 8, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A mask for use in inhaling a substance includes a mask housing defining a chamber. The housing has an inlet and an outlet communicating with the chamber. A valve is disposed in the inlet and is integrally formed with the housing, such that the valve and the housing are formed as a one-piece unit. In a preferred embodiment, the housing further comprises an exhaust port and an exhalation valve disposed in the exhaust port, with a shield disposed around the exhaust port. In another aspect, a method of manufacturing a mask also is provided.
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