Stick-type ignition coil having improved structure against...

Inductor devices – Core insulation

Reexamination Certificate

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C336S090000, C336S198000

Reexamination Certificate

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06977574

ABSTRACT:
A stick-type ignition coil have a central core, a cylindrical member, primary spool, primary coil, secondary spool, secondary coil, outer core and a resin insulator. The two longitudinal end corners and faces of the core are covered by respective buffer members. The inner circumferential corners of the outer core is supported by ring members. Some of the members disposed radially inside and other members disposed radially outside of the inside members are held slidably to each other in the ignition coil. The spools are made of resin containing a rubber in excess of 5 weight percent and reinforcing materials. The resin insulator contains a flexible material.

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Engineering Drawing No. 029700-4790 of DENSO dated 1990.

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