发明名称 |
Flat-folded personal respiratory protection device and process for producing the same |
摘要 |
<p>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.</p> |
申请公布号 |
CZ20012983(A3) |
申请公布日期 |
2002.11.13 |
申请号 |
CZ20010002983 |
申请日期 |
1999.05.26 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
CHEN DANIEL T.;NOURI DANA W. |
分类号 |
A62B18/08;A41D13/11;A62B7/10;(IPC1-7):A41D13/00 |
主分类号 |
A62B18/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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