Flat-folded personal respiratory protection devices and processes for preparing same
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United States of America Patent
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-
May 28, 2002
Grant Date -
N/A
app pub date -
Feb 17, 1999
filing date -
Feb 17, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Respiratory devices having first and second lines of demarcation bisected by a fold. The devices are capable of being folded in a first substantially flat configuration for storage (e.g., in a pocket) and are capable of being unfolded in a second ready-to-wear configuration so that a portion of the device covering the nose and the mouth is off-the-face. Processes for making such devices include folding a preform over a bisecting axis and cutting the preform at desired angles and sealing the cuts together to form the mask.
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Family
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