Patent ID: 7559991

Claim:
A system for coating an engine valve, comprising: an infrared oven comprising at least one infrared lamp; a movable track forming a loop, a portion of the track being disposed within the infrared oven; a plurality of engine valves having a valve head and a valve stem, the valve head having a valve seat and comprising a bell region; a plurality of attachment apparatus connected to the movable track, each attachment apparatus configured to receive and hold an engine valve on the track as the track moves and having a masking tooling received over a portion of the valve head of the engine valve, the masking tooling providing a mask for a portion of the valve seat; a spraying device configured to apply a coating composition to the plurality of engine valves disposed on the plurality of attachment apparatus as the engine valves pass through a spraying region, the spraying device being disposed along the movable track before the infrared oven; and wherein each attachment apparatus is configured to rotate the engine valve about an axis of the engine valve as the attachment apparatus passes through the spraying region.