Importance

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Abstract

An apparatus and a method for detecting conductive irregularities in an overwrapped ignition wire core during the manufacturing process thereof which preferably includes two conductive sheaves spaced preferably 24 inches apart about which the wire core is traversed and preferably two non-conductive sheaves for bending the wire core between the two conductive sheaves. A current is induced in the overwrapped wire core between the two conductive sheaves and is monitored by preferably a Newport Model Q90010, indicator/controller module or equivalent which includes means for converting the monitored current into a resistance reading which is compared against predetermined resistance end point limits. A numerical reading indicating resistance is displaced on the face of the inductor/controller module. If the displaced resistance reading falls outside the predetermined limits, means for stopping the traverses of the overwrapped wire core between the two conductive sheaves is activated and the manufacturing process is stopped at that point. Once the conductive irregularities is eliminated, the overwrapped wire core is reconnected and is again traversed between the conductive sheaves searching for another conductive irregularity.

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First Claim