Electric lamp and discharge devices – Spark plugs – Particular electrode structure or spacing
Patent
1990-10-25
1992-06-09
DeMeo, Palmer C.
Electric lamp and discharge devices
Spark plugs
Particular electrode structure or spacing
313141, H01T 1320
Patent
active
051210266
ABSTRACT:
The center electrode of an ignition plug is a unitary cylindrical tungsten rod in which the outer peripheral portion thereof has a higher work function than the core portion.
REFERENCES:
patent: 2159791 (1939-05-01), Fruth
patent: 2261436 (1941-11-01), Fanger
patent: 2605755 (1952-08-01), Secrist
patent: 3967149 (1976-06-01), Eaton et al.
Fulkerson William C.
Martin, III Harry D.
Patrician Thomas J.
DeMeo Palmer C.
GTE Products Corporation
Theodosopoulos James
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