EP 1795079 A1 20070613 - Face mask structure
Title (en)
Face mask structure
Title (de)
Gesichtsmaske
Title (fr)
Masque pour le visage
Publication
Application
Priority
EP 05026732 A 20051207
Abstract (en)
A face mask structure has an upper mask portion, a middle mask portion, and a lower mask portion, which are formed integrally. The upper mask portion has an upper metal stripe disposed at a proper position thereof. The lower mask portion has a lower metal stripe disposed at a proper position thereof. The upper and lower mask portions are folded in opposite directions. When in use, the upper and lower mask portions are spread out to support the middle mask portion. In this way, the face mask structure becomes fitting in with the shapes of human faces. Furthermore, the middle mask portion has multiple folding portions. When in use, the folding portions are stretched out to increase filtering area. Thereby, the inner space of the face mask structure is increased, the air-invasion rate is reduced, and the filtering efficiency is thus improved.
IPC 8 full level
A41D 13/11 (2006.01); A62B 18/02 (2006.01)
CPC (source: EP)
A41D 13/1107 (2013.01); A62B 23/025 (2013.01)
Citation (search report)
- [X] GB 2025773 A 19800130 - AMERICAN CYANAMID CO
- [X] US 4300549 A 19811117 - PARKER DUANE A
- [X] GB 1589181 A 19810507 - JOHNSON & JOHNSON
- [X] US 6474336 B1 20021105 - WOLFE MICHAEL [US]
- [X] EP 1118278 A2 20010725 - SAN M PACKAGE CO LTD [JP]
- [X] EP 0894443 A2 19990203 - SAN M PACKAGE CO LTD [JP]
- [X] EP 1498040 A1 20050119 - MINNESOTA MINING & MFG [US]
- [X] US 3884227 A 19750520 - LUTZ WILLIAM A, et al
- [X] EP 1529453 A2 20050511 - CT HEALTHCARE TECHNOLOGY CO LT [TW]
- [X] DE 8630309 U1 19870108
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DOCDB simple family (application)
EP 05026732 A 20051207