Plug cap for spark plug

Electrical connectors – Having spark or glow plug cover

Patent

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Details

439271, H01R 1344

Patent

active

057555818

ABSTRACT:
A plug cap for a spark plug having a proximal end portion of an insulating resin pipe that has a double wall construction which has an outer wall fitted in a rain cover portion fitted on the insulating resin pipe, and an inner wall fitted on a high-voltage wire. The portion of an annular space (which is formed by the double wall construction, and has a closed bottom) close to the bottom thereof, is divided by a pair of ribs into two or more sections. A ventilation air hole, communicating with a plug hole, is open to one of the sections of the annular space, and a through hole, formed in the rain cover portion, is disposed in an overlying relation to the section of the annular space other than the section to which the air hole is open.

REFERENCES:
patent: 5324207 (1994-06-01), Itoh et al.

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