The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2018
Filed:
Oct. 28, 2015
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventor:
Philip G. Martin, Forest Lake, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A62B 23/02 (2006.01); A62B 9/02 (2006.01); A62B 18/02 (2006.01); A62B 18/10 (2006.01); A62B 7/10 (2006.01); A41D 13/11 (2006.01);
U.S. Cl.
CPC ...
A62B 23/025 (2013.01); A41D 13/1138 (2013.01); A62B 7/10 (2013.01); A62B 9/02 (2013.01); A62B 18/02 (2013.01); A62B 18/10 (2013.01);
Abstract
A filtering face-piece respirator that has a harness and a mask body where the mask body includes a filtering structure and a support structure. An exhalation valve is attached to the mask body and includes a valve seat that is integral to the mask body. The present invention is beneficial in that it eliminates the need to separately manufacture some or all of the non-dynamic parts of the exhalation valve. There also is no need to subsequently attach the valve seat to the mask body.