US 11,811,260 B2
Self-diagnostic fault identification system for emergency lighting unit
Allen George Cyr, Greenville, SC (US); Jonathan Erik Bowers, Greenville, SC (US); Steven Dominic Fernandes, Spartanburg, SC (US); and Robert Papstein, Greenville, SC (US)
Assigned to HLI Solutions, Inc., Greenville, SC (US)
Filed by HLI SOLUTIONS, INC., Greenville, SC (US)
Filed on Jan. 11, 2022, as Appl. No. 17/573,154.
Application 17/021,225 is a division of application No. 15/664,458, filed on Jul. 31, 2017, granted, now 10,775,009, issued on Sep. 15, 2020.
Application 17/573,154 is a continuation of application No. 17/021,225, filed on Sep. 15, 2020, granted, now 11,223,219.
Claims priority of provisional application 62/368,286, filed on Jul. 29, 2016.
Prior Publication US 2022/0158467 A1, May 19, 2022
Int. Cl. H02J 9/02 (2006.01); H05B 47/20 (2020.01); H05B 47/29 (2020.01); H02J 7/00 (2006.01); F21S 9/02 (2006.01); H02J 9/06 (2006.01); H05B 47/28 (2020.01); F21Y 115/10 (2016.01); F21V 21/14 (2006.01)
CPC H02J 9/02 (2013.01) [F21S 9/024 (2013.01); H02J 7/005 (2020.01); H02J 7/0048 (2020.01); H02J 9/065 (2013.01); H05B 47/20 (2020.01); H05B 47/29 (2020.01); F21V 21/14 (2013.01); F21Y 2115/10 (2016.08); H05B 47/28 (2020.01)] 21 Claims
OG exemplary drawing
 
1. An emergency lighting device comprising:
a housing;
a light emitter positioned in the housing;
a driver connected to the light emitter;
a fault indicator circuit positioned in the housing;
a first indicator light connected to the fault indicator circuit; and
a second indicator light connected to the fault indicator circuit,
wherein the fault indicator circuit is configured to activate the first indicator light to indicate a replace battery fault, and to activate the second indicator light to indicate a replace unit fault.