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. 16, 2022
Filed:
Apr. 05, 2017
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Sean R. Kilmer, Lino Lakes, MN (US);
Douglas D. Jensen, Woodbury, MN (US);
Keith K. Mclaughlin, Eagan, MN (US);
Andrew Murphy, Binchester Moor, GB;
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A62B 18/00 (2006.01); A62B 18/04 (2006.01); A62B 7/10 (2006.01); A62B 25/00 (2006.01); A62B 9/00 (2006.01); F04D 25/06 (2006.01); F04D 27/00 (2006.01); H02P 6/00 (2016.01); H02P 6/06 (2006.01);
U.S. Cl.
CPC ...
A62B 18/006 (2013.01); A62B 7/10 (2013.01); A62B 18/045 (2013.01); A62B 25/00 (2013.01); F04D 25/06 (2013.01); F04D 27/004 (2013.01); H02P 6/06 (2013.01); A62B 9/006 (2013.01);
Abstract
Methods and systems for controlling a powered air purifying respirator blower system where volumetric airflow is stepped down into predetermined discrete ranges based on system loading and desired runtime.