A.C. powered detecting device with battery backup

Communications: electrical – Condition responsive indicating system – With particular system function

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

340509, 340629, 340636, 340693, G08B 1710

Patent

active

041386701

ABSTRACT:
An improved a.c. voltage powered warning device for detecting the occurrence of predetermined phenomena, is characterized by battery backup for providing power to the device in the event of interruption of the a.c. voltage. In the disclosed embodiments the warning device is a fire detector having circuitry for supervising the energy level of the backup battery and for providing a warning upon the energy level decreasing to a predetermined value, and for testing a combustion detecting and alarm generating portion of the detector.

REFERENCES:
patent: 3728706 (1973-04-01), Tipton et al.
patent: 3811123 (1974-05-01), Hamm et al.
patent: 3899732 (1975-08-01), Staby
patent: 3955186 (1976-05-01), Green et al.
patent: 3980997 (1976-09-01), Berns et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

A.C. powered detecting device with battery backup does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A.C. powered detecting device with battery backup, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A.C. powered detecting device with battery backup will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-893731

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.