Patent ID: 6173638
Filing Date: 2001-01-16
Classification: B26D,B29C,Y10T

Abstract:
A method for shaping a slab of cellular polymer material by cutting portions of the material, comprising:interposing a first patterned platform and a second patterned platform between a pair of compression rollers, wherein said compression rollers each have an outer surface, and wherein said first patterned platform has a facing surface and an inner surface and is positioned with its inner surface adjacent to the outer surface of the first roller and movable with relation thereto, and said first patterned platform defining on its facing surface at least one recess, and wherein said second patterned platform has a facing surface and an inner surface and is positioned with its inner surface adjacent to the outer surface of the second roller and movable with relation thereto;compressing the slab of cellular polymer material between the first and second patterned platforms; andtransversely cutting the slab with a blade into mating first and second profiled sections when the slab emerges from between the compression rollers, said blade positioned so that the first profiled section is formed with a projection in a region corresponding to the region of the slab wherein the first portion of the cellular polymer material is held within the recess of the first patterned platform when the slab is compressed between the compression rollers, and the second profiled section is formed with a recess in a region corresponding to the region of the slab wherein the first portion of the cellular polymer material is held within the recess of the first patterned platform when the slab is compressed between the rollers.