US 12,462,663 B2
Self-check for personal protective equipment
Kiran S. Kanukurthy, Cottage Grove, MN (US); Steven T. Awiszus, Woodbury, MN (US); Eric C. Lobner, Woodbury, MN (US); and Michael G. Wurm, Waukesha, WI (US)
Assigned to 3M Innovative Properties Company, St. Paul, MN (US)
Filed by 3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US)
Filed on Jun. 4, 2024, as Appl. No. 18/733,123.
Application 18/733,123 is a continuation of application No. 18/321,493, filed on May 22, 2023, granted, now 12,033,488.
Application 18/321,493 is a continuation of application No. 17/446,622, filed on Sep. 1, 2021, granted, now 11,694,536, issued on Jul. 4, 2023.
Application 17/446,622 is a continuation of application No. 16/946,692, filed on Jul. 1, 2020, granted, now 11,127,277, issued on Sep. 21, 2021.
Application 16/946,692 is a continuation of application No. 16/714,870, filed on Dec. 16, 2019, granted, now 10,741,052, issued on Aug. 11, 2020.
Application 16/714,870 is a continuation of application No. 16/340,714, granted, now 10,515,532, issued on Dec. 24, 2019, previously published as PCT/US2017/056184, filed on Oct. 11, 2017.
Claims priority of provisional application 62/408,353, filed on Oct. 14, 2016.
Prior Publication US 2024/0321081 A1, Sep. 26, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G08B 21/18 (2006.01); G08B 21/12 (2006.01); G08B 25/01 (2006.01); G08B 25/10 (2006.01); G16H 40/40 (2018.01); G16H 40/63 (2018.01)
CPC G08B 21/182 (2013.01) [G08B 21/12 (2013.01); G08B 25/016 (2013.01); G08B 25/10 (2013.01); G16H 40/63 (2018.01); G16H 40/40 (2018.01)] 15 Claims
OG exemplary drawing
 
1. A system comprising:
at least a first respirator and second respirator, each comprising a communication component, and each the first and second respirators worn by a particular worker; and
a data hub comprising a communication unit, one or more computer processors, and a memory comprising instructions that when executed by the one or more computer processors cause the one or more computer processors to:
receive, via the communication unit, at least one first diagnostic acknowledgement message from the first respirator that the first respirator has performed a first diagnostic self-check, wherein the first diagnostic acknowledgment message at least includes an identifier of the first respirator and data indicative of a respective state of the first respirator;
receive, via the communication unit, at least one second diagnostic acknowledgement message from the second respirator that has performed a second diagnostic self-check, where the second diagnostic acknowledgement message at least includes an identifier of the second respirator and data indicative of a respective state of the second respirator;
determine whether the first and second acknowledgement messages together satisfy one or more self-check criteria corresponding to proper operation of the first and second respirators; and
perform one or more operations based at least in part on whether the one or more self-check criteria are satisfied.