Patent ID: 8652383
Filing Date: 2014-02-18
Classification: B29C,B29L

Abstract:
1. An insert molding method comprising the steps of: positioning a front flange surface of a fuel intake insert against a preheating plate of a blow mold, the insert comprising a screw portion extending from said front surface, a rear flange surface opposing said front surface and facing a cavity of the blow mold, and a circumferential edge which is located between said front and rear surfaces and which forms a corner with said front surface, wherein the positioning leaves a portion of said front surface exposed to the mold cavity; forming a tank main body by blow molding a parison within said mold cavity and against the positioned insert, the blow molding forcing the parison into direct contact with said back surface, circumferential edge, and exposed front surface portion of the insert so as to envelope said circumferential edge and overhang said corner; and forming a complete, gapless weld between the tank main body and the insert at both the front flange surface and circumferential edge thereof by applying heat to said positioned insert by said preheating plate during said blow molding.