Title:
MASK WITH LEAK PREVENTING SECTION
Document Type and Number:
WIPO Patent Application WO/2011/116173
Kind Code:
A3
Abstract:
To effectively reduce a leakage rate in a mask provided with a leak preventing section adapted to be interposed between a mask body and a wearer's face when the mask is worn. A leak preventing section 14 of a mask 10 includes a first sheet part 22 capable of being laid on a mask body 12; a first connection 24 connecting the first sheet part to the mask body; a second sheet part 26 capable of being laid on the first sheet part; a second connection 28 different from the first connection, and connecting the second sheet part to the first sheet part; a third connection 30 different from the first and second connections, and connecting the first and second sheet parts to the mask body to form a pocket-shape folded configuration 32 between the mask body and the first and second sheet parts; and a fourth connection 34 different from the first, second and third connections, and connecting a wearing band 16 to the second sheet part.
Inventors:
MAKIUCHI NAGOMI (JP)
Application Number:
PCT/US2011/028789
Publication Date:
January 19, 2012
Filing Date:
March 17, 2011
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
MAKIUCHI NAGOMI (JP)
MAKIUCHI NAGOMI (JP)
International Classes:
A62B18/02; A62B9/00; A62B18/08
Foreign References:
JP3152428U | 2009-07-30 | |||
US20050133034A1 | 2005-06-23 | |||
US20050096524A1 | 2005-05-05 | |||
US20060130214A1 | 2006-06-22 | |||
US20070023046A1 | 2007-02-01 | |||
JP2006296486A | 2006-11-02 |
Attorney, Agent or Firm:
FULTON, Lisa P. et al. (Office of Intellectual Property CounselPost Office Box 3342, Saint Paul MN, US)
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