Patent ID: 7981235

Claim:
A method of making a honeycomb structure comprising: providing an elongated tubular material having an exterior surface, applying at least one longitudinal line of an adhesive to the exterior surface of the elongated tubular material, the adhesive being a slow cure adhesive that will not fully cure for at least one hour, wrapping the elongated tubular material around a collector on a surface having at least one curved portion in a manner to cause the adhesive to be positioned between and bond to overlying surfaces of the elongated tubular material and to form a cellular structure on the collector, the cellular structure having a curvature, making at least one transverse cut through the cellular structure, the cut being made before the adhesive has fully cured, placing the cellular structure on a flat surface before the adhesive has fully cured, and allowing the adhesive to fully cure while the cellular structure is on the flat surface such that the curvature in the cellular structure will flatten while the adhesive fully cures.