Invention Grant
- Patent Title: Molded respirator having outer cover web joined to mesh
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Application No.: US13465827Application Date: 2012-05-07
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Publication No.: US10245537B2Publication Date: 2019-04-02
- Inventor: Seyed A. Angadjivand , John M. Brandner , Nhat Ha T. Nguyen
- Applicant: Seyed A. Angadjivand , John M. Brandner , Nhat Ha T. Nguyen
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Main IPC: A62B23/02
- IPC: A62B23/02 ; B01D39/16 ; B29C43/20 ; B01D39/08 ; A41D13/11 ; B29L31/48 ; B29C65/08 ; B29L31/14 ; B29C65/00

Abstract:
A respirator 10 that has a mask body 12 and a harness 14 that is attached to the mask body 12. The mask body 12 includes a filtering structure 18 that has an inner cover web 40a, an outer cover web 40b that comprises melt-blown fibers and staple fibers, and a filtration layer 42 that is located between the inner and outer cover webs 40a, 40b. The mask body 12 also has a mesh 20 that is joined to the outer cover web 40b. A respirator having this construction is more resistant to inward collapse of the filter media during breathing and is more aesthetically pleasing.
Public/Granted literature
- US20130291876A1 MOLDED RESPIRATOR HAVING OUTER COVER WEB JOINED TO MESH Public/Granted day:2013-11-07
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