Apparatus for safety and detection of illuminating circuit

Details Apparatus for safety and detection of illuminating circuit Apparatus for safety and detection of illuminating circuit

1975-12-05

1977-08-16

Habecker, Thomas B.

Communications: electrical

Selective

Having indication or alarm

340251, G08B 2100, B60Q 900

Patent

active

040429083

ABSTRACT:
In a detection apparatus for determining the operability of lighting circuits, a high frequency oscillator operates at a frequency different from that of the power source for the lighting circuits. An electrical element having a high impedance at the oscillator frequency is connected in series with the lighting circuits. Another electrical element having substantially a constant impedance supplies the oscillator output to a connection point between the first electrical member and the lighting circuits. A detecting circuit determines failure of at least one of the lighting circuits by detecting the presence of a high frequency voltage at the connection point. The detected high frequency voltage is rectified and used to indicate failure of the lighting circuit or circuits.

REFERENCES:
patent: 3311779 (1967-03-01), Hartkorn

Affiliated with

Also associated with

Rating

Apparatus for safety and detection of illuminating circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for safety and detection of illuminating circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for safety and detection of illuminating circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-364010