Alarm system

Details Alarm system Alarm system

1985-10-15

1987-09-08

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340587, 364400, G08B 1320

Patent

active

046927433

ABSTRACT:
An intruder alarm system in which intrusion into an enclosed space is detected as a change in the air pressure in the enclosed space uses a microcomputer to monitor the enclosed space by way of a sensor such that changes in air pressure are compared with a reference set at spaced intervals in dependence upon the ambient air pressure, whereby false alarms caused by changes in the weather are avoided.

REFERENCES:
patent: 2745089 (1956-05-01), Levy
patent: 3829851 (1974-08-01), Evans et al.
patent: 3914755 (1975-10-01), Hook
patent: 3947838 (1976-03-01), La Forge, Jr.

Affiliated with

Also associated with

Rating

Alarm system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2161147