Patent ID: 7060212
Filing Date: 2006-06-13
Classification: B28B,E04D

Abstract:
1. A process of manufacturing roof tiles comprising the steps of: extruding a composite ribbon such that said composite ribbon defines an upper surface, a lower surface, and a pair of opposite ribbon side edges; conveying said composite ribbon from an upstream position to a downstream position along a composite ribbon path; demarcating said composite ribbon into an alternating succession of a first roof tile type and a second roof tile type by engaging said composite ribbon with an upstream cutting blade and a downstream cutting blade such that each roof tile type is demarcated at an upstream tile edge by one of said cutting blades and at a downstream tile edge by the other of said cutting blades, and such that a selected one of said roof tile types includes a pair of cut-out portions demarcated along one of said upstream and downstream tile edges, said pair of cut-out portions being positioned on opposite ones of said ribbon side edges; separating said succession of demarcated roof tile types into distinct roof tiles; and curing said distinct roof tiles to form a set of cured roof tiles.