Trouble indicator circuit for a security system

Details Trouble indicator circuit for a security system Trouble indicator circuit for a security system

1975-05-29

1976-08-31

Swann, III, Glen R.

Communications: electrical

Audible indication

Pneumatic-type sound producer

340213R, 340276, 340384E, G08B 2900

Patent

active

039784754

ABSTRACT:
In a solid state security system, a trouble indicator circuit capable of developing both an audio and visual output signal, by providing a visual indication in the absence of a circuit or component failure and an audio initiating signal in response to the presence of a circuit or component failure.

REFERENCES:
patent: 3188392 (1965-06-01), Ferrell
patent: 3510863 (1970-05-01), McBrian
patent: 3582949 (1971-06-01), Forst
patent: 3594788 (1971-07-01), Seelig
patent: 3641570 (1972-02-01), Thompson
patent: 3678509 (1972-07-01), Carlo et al.
patent: 3699569 (1972-10-01), Lee
patent: 3750131 (1973-07-01), Fletcher et al.
patent: 3803568 (1974-04-01), Higashide
patent: 3818433 (1974-06-01), Okamoto et al.

Affiliated with

Also associated with

Rating

Trouble indicator circuit for a security 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 Trouble indicator circuit for a security system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trouble indicator circuit for a security system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1818871