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Patent Searching and Data


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 (33-1, Tamagawadai 2-chomeSetagaya-ku, Tokyo, 158-8583, JP)
Application Number:
US2011/028789
Publication Date:
September 22, 2011
Filing Date:
March 17, 2011
Export Citation:
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Assignee:
3M INNOVATIVE PROPERTIES COMPANY (3M Center, Post Office Box 33427Saint Paul, MN, 55133-3427, US)
MAKIUCHI, Nagomi (33-1, Tamagawadai 2-chomeSetagaya-ku, Tokyo, 158-8583, JP)
International Classes:
A62B18/02; A62B9/00; A62B18/08
Foreign References:
JP3152428U2009-07-30
US20050133034A12005-06-23
US20050096524A12005-05-05
US20060130214A12006-06-22
US20070023046A12007-02-01
JP2006296486A2006-11-02
Attorney, Agent or Firm:
FULTON, Lisa P. et al. (3M Center, Office of Intellectual Property CounselPost Office Box 3342, Saint Paul MN, 55133-3427, US)
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