Resistor composition for resistor-incorporated spark plugs

Details Resistor composition for resistor-incorporated spark plugs Resistor composition for resistor-incorporated spark plugs

1982-06-29

1984-05-01

Barr, Josephine

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

252508, 252509, 252504, 252505, 252506, H01B 106

Patent

active

044460589

ABSTRACT:
A resistor composition for resistor-incorporated spark plugs, substantially consisting of 100 parts of a base mixture consisting of 30 to 70% of glass frit and the balance of inorganic aggregate; 0.1 to 7.0 parts, calculated on carbon upon sintering, of a carbonaceous material; and 0 to 30 parts of an agent for stabilizing resistance of the resistor under load, the glass frit containing 10 to 100% of lead glass having a PbO content of 30 to 88% and a softening point of 300.degree. to 600.degree. C. with the balance of a glass having a softening point exceeding 500.degree. C., each by weight ratio.

REFERENCES:
patent: 3909459 (1975-09-01), Friese et al.
patent: 3929674 (1975-12-01), Patterson
patent: 3943168 (1976-03-01), Patterson
patent: 4018717 (1977-04-01), Francel et al.
patent: 4051074 (1977-09-01), Asada et al.
patent: 4070517 (1978-01-01), Kazmierowicz
patent: 4097653 (1978-06-01), Patterson et al.
patent: 4173731 (1979-11-01), Takagi et al.

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