Smoke detector with remote alarm indication

Details Smoke detector with remote alarm indication Smoke detector with remote alarm indication

G - Physics

08

B

340/164, 340/140

G08B 17/10 (2006.01) G08B 23/00 (2006.01)

Patent

CA 1225722

7450-44 ABSTRACT OF THE DISCLOSURE A smoke detector receiving at two input terminals DC power from a remote source not only gives an alarm indication in response to a significant density of smoke at a local position, but senses the polarity of DC power at the terminals and generates a secondary signal, distinguishable from the alarm signal, when the polarity of power source is reversed. The invention permits manual or automatic operation of a remote switch in response to a remote fire or other remote alarm condition to cause operation of the local alarm. The remote alarm condition is distinguished early from the local alarm condition because the former is pulsed whereas the latter is continuous.

467011

Affiliated with

Also associated with

Rating

Smoke detector with remote alarm indication does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Smoke detector with remote alarm indication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Smoke detector with remote alarm indication will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1288274