Smoke detectors

Details Smoke detectors Smoke detectors

G - Physics

08

B

358/21

G08B 17/10 (2006.01) G08B 17/11 (2006.01) G08B 17/113 (2006.01) G08B 29/14 (2006.01)

Patent

CA 1116319

ABSTRACT SMOKE DETECTORS The invention relates to smoke detectors of the kind comprising first and second electrodes defining an ionisation chamber permitting entry of smoke, said ionisation chamber being optionally divided into two regions by a collector electrode, a radioactive source to ionise gas in the ionisation chamber and a potential difference applied across the first and second elec- trodes to cause an ion current to flow, which current is affected by entry of smoke, and provides an auxili- ary electrode positioned in the ionisation chamber, and means to maintain or create a potential difference be- tween the first electrode and the auxiliary electrode. The auxiliary electrode may be used for testing or for adjustment of sensitivity.

316182

Affiliated with

Also associated with

Rating

Smoke detectors 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 detectors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Smoke detectors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-674949