Indicator light and testing circuit

Details Indicator light and testing circuit Indicator light and testing circuit

1975-05-08

1977-04-19

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 51, 340214, 340252R, G01R 3102, G01R 3122, G08B 2900

Patent

active

040191281

ABSTRACT:
A circuit for simultaneously testing all of the pilot lights or indicator lights on a panel. Each of the pilot lights is associated with a pilot light unit having a transformer and a relay-operated, two-pole switch. Upon the simultaneous introduction of a test current to each of the pilot light units, the relay is energized by the test current to disconnect the pilot light from its normal signal connection and connect the pilot light to receve the test current.

REFERENCES:
patent: 2117313 (1938-05-01), Girardin
patent: 2468945 (1949-05-01), Sasser
patent: 3244935 (1966-04-01), Robbins et al.
patent: 3309685 (1967-04-01), Manning
patent: 3840801 (1974-10-01), Kellog et al.

Affiliated with

Also associated with

Rating

Indicator light and testing 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 Indicator light and testing circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Indicator light and testing circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-105759