Invention Grant
US08528560B2 Filtering face-piece respirator having parallel line weld pattern in mask body
有权
过滤脸罩式呼吸器，在面罩体内具有平行线焊接图案
- Patent Title: Filtering face-piece respirator having parallel line weld pattern in mask body
- Patent Title (中): 过滤脸罩式呼吸器，在面罩体内具有平行线焊接图案
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Application No.: US12907147Application Date: 2010-10-19
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Publication No.: US08528560B2Publication Date: 2013-09-10
- Inventor: Dean R. Duffy
- Applicant: Dean R. Duffy
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Karl G. Hanson
- Main IPC: A62B7/10
- IPC: A62B7/10
Abstract:
A respirator 10 that has a harness 14 and a mask body 12 that is joined to the harness 14. The mask body 12 includes a filtering structure 16 that may contain a plurality of layers of nonwoven fibrous material 58, 60, 62. The layers of nonwoven fibrous material 58, 60, 62 have a thickness A and are welded together by at least two parallel weld lines 34′, 34″ that are spaced at 0.5 to 6 times A. A mask body that uses parallel weld lines may exhibit better resistance to collapse and may be manufactured at faster speeds than similar structures which use single weld lines of comparable width.
Public/Granted literature
- US20110094515A1 FILTERING FACE-PIECE RESPIRATOR HAVING PARALLEL LINE WELD PATTERN IN MASK BODY Public/Granted day:2011-04-28
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