Title: Flat-folded personal respiratory protection devices and process for preparing same
Application Number: 99801601 Application Date: 1999.05.26
Publication Number: 1292652 Publication Date: 2001.04.25
Approval Pub. Date: 2004.08.11 Granted Pub. Date: 2004.08.11
International Classifi-cation: A41D13/11;A62B7/10
Applicant(s) Name: 3M Innovative Properties Company Address:
Inventor(s) Name: Daniel T. Chen;Dana W. Nouri
Attorney & Agent: wu menghua
Abstract:
    A respiratory protection device has 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.
Time: 14
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