Patent ID: 6901641

Claim:
A method for fabricating a valance, wherein said method comprises: extruding an elongated member composed of thermoplastic resin through a die set an opening having a first opening portion causing thermoplastic melt extruded therethrough to form an upper curved shape, a second opening portion causing thermoplastic melt extruded therethrough to form a web shape extending from said upper curved shape, and a third opening portion causing thermoplastic melt extruded therethrough to form a lower curved shape extending from said web shape, wherein said first opening portion and said third opening portion each include a mandrel. a melt of said thermoplastic resin flows around each said mandrel to from a hollow, closed structure of said thermoplastic resin as a portion of said elongated member; said thermoplastic resin includes a first thermoplastic resin having a first color and a second thermoplastic resin having a second color, contrasting with said first color, in said die set includes first an second structure forming plates, said first thermoplastic resin is extruded through said first structure forming plate, after extrusion through said first structure forming plate, said first thermoplastic resin is coextruded through said second structure forming plate with said second thermoplastic resin, said second structure forming plate includes a first groove extending as part of said first opening portion between corners in said first opening portion, and said second thermoplastic material is forced into said first groove to form a first outward-extending ridge; sawing said elongated member to form mitered surface extending at a both ends of a central elongated portion of said valance and to form a pair of end portions of said valance, wherein each said end portion includes a mitered end and an end extending perpendicular to a length of said end portion; and attaching said end portions to extend in a common direction from each end of said central elongated portion.