Patent ID: 9550318
Date: 2017-01-24
CPC Classifications: B29C,B29D,B29L,B30B,B31D,B32B,Y10T

Claim:
1. A process of making a sandwich-like product, said process comprising, in any desired order: providing an extruded web having spaced upper and lower walls and a plurality of spacers extending between the upper and lower walls, the spacers being spaced from each other to define a plurality of flutes; removing portions of the extruded web using multiple movable tools to create a treated web having lightened areas transversely extending from one side edge of the extruded web to the other side edge of the extruded web; folding the treated web such that upper and lower walls of the untreated regions of the treated web become sidewalls of a plurality of cells arranged in rows of a core of the sandwich-like product; applying outer skins to tops and bottoms of the cells of the core to create a multi-layered web.