Patent ID: 7807080

Claim:
A method of simultaneously molding multiple plastic parts, comprising: providing a first mold half having a first mold portion against which a first plastic sheet is molded; providing a second mold half having a second mold portion against which a second plastic sheet is molded; offsetting the first mold portion and the second mold portion to define a pair of twinning sections and a primary section between the pair of twinning sections; molding the first plastic sheet and the second plastic sheet between the first mold portion and the second mold portion into a composite part having a first plastic layer and a second plastic layer such that the first plastic layer and the second plastic layer are fused during the molding at the pair of twinning sections forming a first double layer area and a second double layer area, and the first plastic layer and the second plastic layer are not fused during the molding at the primary section forming a first single layer area and a second single layer area; and separating the composite part into a first molded part and a second molded part by cutting the first plastic layer in the primary section on a first side of a center of the composite part and cutting the second plastic layer in the primary section on a second side of the center of the composite part; wherein the first molded part includes the first double layer area and the first single layer area and the second molded part includes the second double layer area and the second single layer area.