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:
Jul. 14, 2015
Filed:
Nov. 02, 2011
Applicants:
Peter Tobias, Minneapolis, MN (US);
Lynn Feiner, Warwick, RI (US);
Inventors:
Peter Tobias, Minneapolis, MN (US);
Lynn Feiner, Warwick, RI (US);
Assignee:
Honeywell International Inc., Morristown, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62B 7/10 (2006.01); A62B 19/00 (2006.01); A62B 23/02 (2006.01); A62B 9/00 (2006.01); A61M 16/10 (2006.01); A62B 18/08 (2006.01);
U.S. Cl.
CPC ...
A62B 9/006 (2013.01); A61M 16/105 (2013.01); A61M 16/107 (2014.02); A62B 18/088 (2013.01); A62B 19/00 (2013.01);
Abstract
A respirator service life indication system may include a breathing apparatus having an air purifying element; and a service life indicator arranged in a parallel flow configuration with the breathing apparatus. The service life indicator typically might have a sacrificial cartridge, and a sensor disposed downstream of the sacrificial cartridge and configured to detect a contaminant concentration above a predetermined threshold in a gas stream passing through the sacrificial cartridge.