Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1994-12-29
1996-07-02
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular system function
340514, 3241581, G08B 2900
Patent
active
055326757
ABSTRACT:
The present invention relates to a device and method for testing circuitry, such as that provided in an alarm system. The present invention tests the circuit by providing a momentary or a continuous trigger. The testing device of the present invention is connectable by two jacks to test leads from the circuit being tested, and the circuit alarm is triggered by a relay switch either connecting or disconnecting the two jacks. The present invention additionally includes a control circuit with a power supply and a relay coil for controlling the relay switch, along with a further switch to provide two operational modes, each capable of triggering either a momentary or a continuous alarm.
REFERENCES:
patent: Re33504 (1990-12-01), Yuhasz et al.
patent: 2250214 (1941-07-01), Ashworth
patent: 2814795 (1957-11-01), Spooner
patent: 2847662 (1958-08-01), Lindgren
patent: 3016525 (1962-01-01), Hauck
patent: 3210615 (1965-10-01), Sherstiuk
patent: 3622972 (1971-11-01), Herceg
patent: 3906476 (1975-09-01), Yonezu
patent: 3917001 (1975-11-01), Davis et al.
patent: 4309695 (1982-01-01), Guillemot
patent: 4329643 (1982-05-01), Neumann et al.
patent: 4418312 (1983-11-01), Figler et al.
patent: 4591731 (1986-05-01), Garcia
patent: 4862142 (1989-08-01), Knight
patent: 4912384 (1990-03-01), Kinoshita et al.
Crosland Donnie L.
Johnson Linda
LandOfFree
Alarm tester 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 tester, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alarm tester will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1509893