Patent ID: 6119324
Filing Date: 2000-09-19
Classification: B26D,B26F,B29C,B29L,Y10T

Abstract:
A process for manufacturing extruded polymeric articles, comprising the steps of:providing extruding equipment including a shaping die;providing a cutter having a pair of spaced apart cutting blades interconnected by a web, wherein the cutter is positioned immediately downstream of said shaping die;forcing a polymeric material through said shaping die, thereby forming an extrusion having a plurality of interconnected walls defining a hollow interior, wherein the extrusion moves past said cutter; andwhile said extrusion moves past said cutter,(i) passing said web through one of said walls and into said hollow interior and bringing said spaced apart cutting blades into engagement with said one wall such that said one wall becomes severed as said one wall moves past said spaced apart cutting blades; then(ii) withdrawing said web from said hollow interior by passing said web through said one wall, thereby removing said spaced apart cutting blades from engagement with said one wall, whereby a section of a distinct shape is removed from said one wall, and a closed opening that corresponds to said distinct shape is formed in said one wall; and then(iii) repeating steps (i) and (ii).