H - Electricity – 01 – T
Patent
H - Electricity
01
T
26/112, 123/217
H01T 13/20 (2006.01) H01T 13/32 (2006.01) H01T 13/39 (2006.01)
Patent
CA 1326185
COPPER CORE SIDE ELECTRODE SPARK PLUG SHELL Abstract of the Invention A metal spark plug shell includes an L-shaped copper core side electrode secured in an axially extending slot on the metal shell. The side electrode includes an attachment end having a portion with an outer side that is threaded contiguous with the metal shell and another portion adjacent the end of the metal shell with a recessed outer side that is unthreaded so as to permit spark plug gapping without breakage of the side electrode. The heat-resistant sheath around the copper core on the inner side of the attachment end may be spot welded to the metal shell.
600498
General Motors Corporation
Gowling Lafleur Henderson Llp
LandOfFree
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