Patent ID: 7055482

Claim:
A protective cover for the spark plug boot connected with an ignition wire and spark plug of an engine, comprising: a single length of woven glass tubular sleeve having an inner layer and an outer layer gathered at one end around a circular retainer ring and forming a restricted mouth with a lower opening wherein the end of said outer layer extends beyond the end of the inner layer and the end of the outer layer is reversely inwardly folded to form a flap having a circumferential hem, and wherein the flap is reversely inwardly folded overlying the end of the inner layer; and a circumferential stitching attaching the flap to said outer layer and said inner layer at an axial location intermediate the hem and said ends of said inner layer and said outer layer thereby forming a four layer circumferential cuff having an enclosure capturing said ends of said layers; and a coating system on said outer layer including a silicone-based base coat containing metallic particulate in sufficient quantity to make said base coat conductive for grounding static and corona charges in said ignition wire.