Patent ID: 7704430

Claim:
A method of making an article of footwear comprising the steps of: associating a matrix lining with a first side of a central mold, a first surface of the matrix lining confronting the first side of the central mold, the matrix lining also including a second surface disposed opposite the first surface, the matrix lining defining at least one hole; associating a lug cavity with the second surface of the matrix lining, a rim of the lug cavity surrounding the lug cavity and pressing the matrix lining against the first side of the central mold; placing a rubber forming block proximate a second side of the central mold; compressing the rubber forming block and causing a portion of the rubber forming block to become viscous and flow through at least one injection cavity disposed in the central mold and through at least one injection tip aligned with and inserted into the at least one hole in the matrix lining; the portion of the rubber forming block continuing to flow through the at least one hole disposed in the matrix lining and flowing into the lug cavity; and wherein the portion of the rubber forming block fills the lug cavity and contacts the second surface of the matrix lining.