Flexible spark plug

Details Flexible spark plug Flexible spark plug

2010-02-25

2011-11-22

Patel, Ashok (Department: 2889)

Electric lamp and discharge devices

Spark plugs

Particular electrode structure or spacing

C313S128000, C313S135000, C313S143000

Reexamination Certificate

active

08063548

ABSTRACT:
A spark plug designed for fitting in tight spaces of an engine compartment is disclosed. The spark plug has a conductive terminal attached to one end of a flexible central electrode and has a ceramic insulator partially encasing the flexible central electrode. The part of the flexible central electrode between the ceramic insulator and the conductive terminal is encased in a flexible insulator. The flexible part of the central electrode may be bent away from the axis of the ceramic insulator accommodating both installation and servicing of the spark plug in tight spaces.

REFERENCES:
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patent: 2458121 (1949-01-01), Waldron
patent: 2522169 (1950-09-01), Frei
patent: 2646782 (1953-07-01), Fisher
patent: 3693607 (1972-09-01), Pasbrig
patent: 3918789 (1975-11-01), Davis
patent: 4413870 (1983-11-01), Labutski, III
patent: 5813872 (1998-09-01), Evans et al.
patent: 6597088 (2003-07-01), Glaser et al.
patent: 2003/0098636 (2003-05-01), Quan et al.

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