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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0397399 (1989-08-23) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 26 인용 특허 : 3 |
A full head respirator to filter the air of smoke and fumes, that includes an infrastructure capable of fitting over a human head and adaptable to all sizes and shapes of wearers. The infrastructure is formed by a plurality of intersecting air tubes. The respirator has a covering made of flexible fl
A full head respirator to filter air of smoke and fumes comprising: a flexible, generally continuous infrastructure, said infrastructure adjustably sized to fit over a human head; said infrastructure comprising a plurality of intersecting conducting tubes in communication; said tubes having a common
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