Air circulating surgical mask unit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 28, 1990
Grant Date -
N/A
app pub date -
May 8, 1989
filing date -
May 8, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A surgical mask unit characterized by its comfort and ability to eliminate eyeglass fogging by utilizing a housing adjacent the surgical mask having a volume considerably larger than the mask volume permitting the breath to be substantially removed from the mask during each breathing cycle. Preferably, the housing is in the form of a loop encircling the wearer's neck, and a circulating fan may be located in the housing to augment the advantages and draw fresh air into the housing through a controlled inlet.
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Family
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Cited Art Landscape
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