Title:
ANTI-DUST MASK HAVING A CIRCULAR PAD PART AND A FIXTURE FOR A FILTER PART
Document Type and Number:
WIPO Patent Application WO/2012/070805
Kind Code:
A2
Abstract:
The present invention relates to an anti-dust mask. The anti-dust mask (1) includes: a pad part (2) to which a sheet is closely attached to a front surface using thermal press forming, wherein a polyurethane film (202) adheres to the inner surface of the sheet and a spandex fabric adheres to the outer surface of the sheet; a fixture (3) for a filter part, to which the pad part and a disposable filter part adhere; a hemispherical filter part (4) defining a front space to filter contaminated air; and a one-way exhaust valve (8). Curves are formed on the pad part such that the pad part can be closely attached to the curvature of the face. The pad part (2) and internal/external wing parts (201, 302, 201', and 302') are sewn or thermally adhered together so as to form an air cushion (7) in the pad part (2).
Inventors:
PARK KISU (KR)
Application Number:
PCT/KR2011/008790
Publication Date:
May 31, 2012
Filing Date:
November 17, 2011
Export Citation:
Assignee:
PARK KISU (KR)
International Classes:
A62B18/02; A62B7/10; A62B9/00; A62B9/02
Domestic Patent References:
| WO2009041792A2 | 2009-04-02 |
Foreign References:
| KR100999860B1 | 2010-12-09 | |||
| KR100968768B1 | 2010-07-08 | |||
| KR20100064396A | 2010-06-15 | |||
| US6817362B2 | 2004-11-16 |
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Claims: