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Ignition Installations For Internal Combustion Engines
(AREA)
Abstract
Protective device for spark plugs of internal combustion engines, characterized by being composed of a cylindrical vessel, preferably made of plastic materials, equipped on its internal walls with a thread of the same thread pitch as that provided with spark plugs on its lower part for mounting to the motor housing, to which the said cup fits, protecting and isolating the tips of the shaft electrodes when the spark plug is not used. (Machine-translation by Google Translate, not legally binding)