Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1978-11-13
1980-12-02
Tokar, Michael J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 62, G01R 3112
Patent
active
042374154
ABSTRACT:
Feedthrough bushings containing electrically conductive coatings on the porcelain outer shell are provided with means for electrically monitoring the state of conductivity of the coatings. An electrical feedthrough connecting with the electrically conductive coating at one end provides an efficient means for connecting with current measuring devices to determine the current through the coating while the bushing remains energized.
REFERENCES:
patent: 1721847 (1929-07-01), Austin
patent: 2802176 (1957-08-01), Anderson et al.
patent: 2889395 (1959-06-01), Frakes
patent: 3514695 (1970-05-01), Skarshaug
Doyle Francis X.
General Electric Company
Menelly Richard A.
Tokar Michael J.
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