Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1976-04-22
1977-10-11
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 60C, G01R 1342
Patent
active
040538230
ABSTRACT:
Electronic apparatus for detection of improper arc in automotive vehicle ignition systems, and adapted for permanent installation in a vehicle, is disclosed. Ignition system dwell period and arc duration are measured for each ignition cycle and a visual indicator is enabled if the arc is less than desired duration.
REFERENCES:
patent: RE27829 (1973-12-01), Tiffany
patent: 3862571 (1975-01-01), Vogel
patent: 3882380 (1975-05-01), Black
patent: 3904955 (1975-09-01), Katz
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