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Patent Searching and Data


Title:
FILTERING FACE-PIECE RESPIRATOR HAVING AN AUXETIC MESH IN THE MASK BODY
Document Type and Number:
WIPO Patent Application WO/2011/090586
Kind Code:
A3
Abstract:
A filtering face-piece respirator 10 that has a harness 14 and a mask body 12. The mask body 12 includes a support structure 16 and a filtering structure 18. The support structure 16 contains an auxetic mesh 20 that has been molded into an intended cup-shape configuration, and the filtering structure 18 contains a filtration layer 42 for removing contaminants from the ambient air. The use of an auxetic mesh 20 in the support structure 16 provides more uniformly-sized openings 26 in the mesh 20 and reduces opportunities for mesh overlapping and mesh distortion.

Inventors:
MARTIN PHILIP G (US)
Application Number:
US2010/059792
Publication Date:
July 28, 2011
Filing Date:
December 10, 2010
Export Citation:
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Assignee:
3M INNOVATIVE PROPERTIES COMPANY (3M Center, Post Office Box 33427Saint Paul, MN, 55133-3427, US)
International Classes:
A62B7/10; A62B9/04; A62B18/02
Foreign References:
US4004584A1977-01-25
US20050142331A12005-06-30
US20010015205A12001-08-23
US20050287371A12005-12-29
US20080145599A12008-06-19
Other References:
See also references of EP 2519326A4
Attorney, Agent or Firm:
HANSON, Karl G. et al. (3M Center, Office of Intellectual Property CounselPost Office Box 3342, Saint Paul MN, 55133-3427, US)
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