CA1320246C - Systeme d'eclairage de secours a caracteristique d'essai a distance
- Google Patents
Systeme d'eclairage de secours a caracteristique d'essai a distance
Info
Publication number
CA1320246C
CA1320246CCA000592662ACA592662ACA1320246CCA 1320246 CCA1320246 CCA 1320246CCA 000592662 ACA000592662 ACA 000592662ACA 592662 ACA592662 ACA 592662ACA 1320246 CCA1320246 CCA 1320246C
Authority
CA
Canada
Prior art keywords
battery
voltage
line
unit
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BIG BEAM EMERGENCY SYSTEMS Inc
Original Assignee
Teledyne Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teledyne Industries IncfiledCriticalTeledyne Industries Inc
Application grantedgrantedCritical
Publication of CA1320246CpublicationCriticalpatent/CA1320246C/fr
Smoke detector including an indicator for indicating a missing primary power source which is powered by a substantially nonremovable secondary power source