Hardwired alarm system with power-on sequence

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C340S514000, C340S516000, C324S511000, C702S058000

Reexamination Certificate

active

07825817

ABSTRACT:
A sensor and alarm system having a power-on sequence. The system has a power supply permanently-like connected to a power line of a facility. There may be a power interrupt to the power supply, which may initiate a power-on sequence of alarms. The sequence of alarms may indicate whether the system is wired properly and operating normally. If the sequence does not occur in a pattern as expected, then there may be a problem with the system. Also, the sensor portion of the system may set off an alarm pattern if a sensed gas has a concentration greater than a first magnitude. The system may set off another alarm pattern if a sensed gas has a concentration greater than a second magnitude. If a sensing element of the sensor portion goes out of calibration, then the system may set off still another alarm pattern.

REFERENCES:
patent: 4345242 (1982-08-01), Ienna-Balistreri
patent: 4860223 (1989-08-01), Grilk
patent: 5265032 (1993-11-01), Patel
patent: 5432500 (1995-07-01), Scripps
patent: 5459450 (1995-10-01), Beghelli
patent: 5598139 (1997-01-01), Karim et al.
patent: 5729197 (1998-03-01), Cash
patent: 5886638 (1999-03-01), Tanguay
patent: 5896091 (1999-04-01), Soderlund
patent: 6114950 (2000-09-01), Schaible et al.
patent: 6456471 (2002-09-01), Haun et al.
patent: 6873256 (2005-03-01), Lemelson et al.
patent: 6919809 (2005-07-01), Blunn et al.
patent: 6948352 (2005-09-01), Rabbett et al.
patent: 7336191 (2008-02-01), Drews et al.
patent: 7515058 (2009-04-01), Normand
patent: 2006/0076896 (2006-04-01), Osborn et al.
patent: 2006/0290525 (2006-12-01), Andersen et al.
Chart, “CO2 Monitoring System, Ensuring a Safe Working Environment,” 2 pages, prior to Jun. 22, 2006.
http://www.chartindustries.com/app, “Chart Innovation, Experience, Performance, CO2 Monitoring Systems,” 3 pages, prior to Jun. 22, 2006.
Infineon Technologies, “CoolSET-F2, Off-Line SMPS Current Mode Controller with Integrated 650V/800V,” 1 page, Jan. 2004.
McDonald's, “CO2 Safety Systems,” 2 pages, prior to Jun. 22, 2006.

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

Hardwired alarm system with power-on sequence does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hardwired alarm system with power-on sequence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hardwired alarm system with power-on sequence will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4251333

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