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:
Feb. 01, 2022
Filed:
Sep. 05, 2014
Applicant:
Honeywell International Inc., Morris Plains, NJ (US);
Inventors:
Assignee:
Honeywell International Inc., Morristown, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A62B 9/00 (2006.01); A41D 13/11 (2006.01); A62B 18/02 (2006.01); A62B 23/02 (2006.01);
U.S. Cl.
CPC ...
A62B 9/006 (2013.01); A41D 13/11 (2013.01); A41D 13/1138 (2013.01); A62B 18/02 (2013.01); A62B 23/025 (2013.01); A41D 2500/30 (2013.01);
Abstract
Embodiments relate generally to methods and systems for detecting and indicating end-of-service-life in disposable filtration masks. Applicant has proposed incorporating end-of-service-life indicators comprising color changing chemicals into the mask. The indicating chemicals may be incorporated into the nonwoven fabric material of the mask, or may be attached to the nonwoven material of the mask, such as by dipping, spraying, or adhering. The color change of the indicating chemicals may indicate to a user that the use life of the mask has been depleted.