Patent ID: 6737008
Filing Date: 2004-05-18
Classification: B29C,B29K,Y10T

Abstract:
A method of manufacturing a shaped polymeric article, comprising the steps of:providing a sheet of extruded hot polymeric material that is above its heat deflection temperature; disposing said sheet onto a rotating belt, said rotating belt including a mold impression therein and a plurality of apertures therethrough, said mold impression resembling a plurality of adjacent shingle impressions of substantially the same length, each of said shingle impressions including a bottom edge, at least one of said bottom edges being beveled to give the appearance of shingles having different lengths; applying vacuum pressure to said hot polymeric material through said belt, so as to draw said sheet into intimate forming contact with said mold impression to form a patterned central portion; cooling said patterned central portion below said heat deflection temperature of said polymeric material; and severing a length of said sheet to produce a shaped polymeric article.