Patent ID: 7412301

Claim:
A method of a molding system being configured to accommodate a mold, comprising: an operation of identifying a quality of a molded article that was molded in the mold, the quality of the molded article being based on a determination of whether a plug was blown, at least in part, from a melt passageway leading to the mold as a result of a molding material being made to flow, under pressure, from the melt passageway to the mold, and the molding material pushing the plug into the mold; an operation of identifying whether the molded article has a questionable quality if the plug did not blow; an operation of identifying whether the molded article has acceptable quality if the plug did blow; and an operation of analyzing an output signal of a sensor to determine whether the plug had blown, the sensor being positioned proximate to the plug waiting to be ejected from the melt passageway to the mold, the plug becoming ejected to the mold once the molding material is injected to the mold from an extruder, the extruder being operatively coupled to the mold, the extruder being used to prepare the molding material.