Respirator mask with tapered filter mount and valve aligning pins and ears
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 9, 1996
Grant Date -
N/A
app pub date -
Dec 11, 1992
filing date -
Dec 11, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A respirator mask, including a unitary body member formed of a flexible rubberlike material and having an inner surface to fit and seal upon the face of a user. The body member including at least one opening to receive a filter cartridge and including an internally extending flange portion forming the circumference of the opening. A filter cartridge formed of a substantially rigid material and including an inner grooved portion having a shape substantially complementary to the internally extending flange portion of the body member and with the flange portion for reception within the grooved portion of the cartridge to provide for the cartridge being locked within the opening in the body portion. The internally extending flange portion of the body member and the grooved portion of the cartridge forming a seal to prevent any passage of air from the outside to the inside of the mask, except through the filter cartridge.
First Claim
Family
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Cited Art Landscape
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