Electricity: conductors and insulators – Earth grounds
Patent
1990-07-10
1991-02-19
Askin, Laramie E.
Electricity: conductors and insulators
Earth grounds
106717, 252502, H01R 466, H01B 118, C09K 300
Patent
active
049946293
ABSTRACT:
An electrical ground system as a metal conductor surrounded by a composition comprising a mixture of portland cement, sized calcined fluid petroleum coke, micro-carbon rods and carbon black.
REFERENCES:
patent: 4786388 (1988-11-01), Tatum, Jr.
Lewis, Jr. Thomas H.
Tatum, Jr. Joseph F.
Askin Laramie E.
Cathodic Engineering Equipment Co., Inc.
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