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:
Aug. 12, 2025
Filed:
Nov. 18, 2021
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Gary E. Dwyer, Mallorytown, CA;
Pierre Legare, Brockville, CA;
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A62B 23/02 (2006.01); A62B 19/00 (2006.01); A62B 27/00 (2006.01); A62B 9/02 (2006.01);
U.S. Cl.
CPC ...
A62B 23/02 (2013.01); A62B 19/00 (2013.01); A62B 27/00 (2013.01); A62B 9/02 (2013.01);
Abstract
A cartridge holder for a respirator, the cartridge holder including a fit-check device with a sealing platen that can be actuated between a first, unsealed position and a second, sealed position in which at least a portion of the sealing platen contacts a major surface of a disposable filter cartridge within the cartridge holder so as to prevent airflow through the disposable filter cartridge.