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:
PCT/US2010/059792
Publication Date:
October 20, 2011
Filing Date:
December 10, 2010
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
International Classes:
A62B7/10; A62B9/04; A62B18/02
Foreign References:
| US4004584A | 1977-01-25 | |||
| US20050142331A1 | 2005-06-30 | |||
| US20010015205A1 | 2001-08-23 | |||
| US20050287371A1 | 2005-12-29 | |||
| US20080145599A1 | 2008-06-19 |
Other References:
See also references of EP 2519326A4
Attorney, Agent or Firm:
HANSON, Karl G. et al. (Office of Intellectual Property CounselPost Office Box 3342, Saint Paul MN, US)
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