Patent ID: 7222726

Claim:
A method of maintaining oven conveyor alignment with respect to a terminal roller having two ends, wherein an oven conveyor belt has an elongated axis and the conveyor belt is rotating around the terminal roller, the method comprising: providing an oven with an interior and a conveyor belt moving through the interior; heating the interior of the oven to a temperature that is sufficient to cook food items moving on the conveyor belt within the oven; cooking food items in the oven by moving the food items through the oven on the conveyor belt; providing a camera having a primary camera housing; providing a secondary camera housing; protecting the camera by enclosing the camera and its primary camera housing within the secondary camera housing; positioning and focusing the protected camera to view the oven conveyor belt alignment with respect to one of the ends of the terminal roller; generating a digital image signal of the oven conveyor belt with respect to the end of the terminal roller; and using the digital image signal to make necessary adjustments to the oven conveyor alignment.