Spark plug for internal combustion engine

Details Spark plug for internal combustion engine Spark plug for internal combustion engine

1979-06-06

1981-09-08

Demeo, Palmer C.

Electric lamp and discharge devices

Spark plugs

Particular electrode structure or spacing

H01T 1332

Patent

active

042887143

ABSTRACT:
A spark plug for an internal combustion engine with both sides of a surface, on a center electrode side, of an outer electrode and/or both side portions, on the top surface of the center electrode, form wedge-shaped projections. At least one surface having the wedge-shaped projection has no plane surface but is arcuate.

REFERENCES:
patent: 961136 (1910-06-01), Jake
patent: 1620341 (1927-03-01), Gardner
patent: 2120492 (1938-06-01), Graf
patent: 3970885 (1976-07-01), Kasima

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