Patent ID: 8512619

Claim:
A method for manufacturing a golf ball comprising: positioning a golf ball sub-part within a mold, wherein a mold cavity is defined between the golf ball sub-part and the mold; positioning a first temperature sensor proximate to the mold cavity; positioning a second temperature sensor proximate to the mold cavity, wherein the first temperature sensor is disposed farther from the at least one mold pin than the second temperature sensor; holding the golf ball sub-part in the mold using at least one retractable mold pin; injecting molten molding material into the mold cavity; detecting a first change in temperature by the first temperature sensor; detecting a second change in temperature by the second temperature sensor; using the first change in temperature and the second change in temperature to determine a rate of movement of the melt front through the mold cavity toward the at least one mold pin receiving feedback sensor data indicative of the rate of movement of a melt front of the molten molding material being injected into the mold cavity; retracting the at least one mold pin when the feedback sensor data indicates a position of the melt front corresponding to a predetermined trigger point position; and filling the mold cavity with the molten molding material.