Patent ID: 9103470
Filing Date: 2015-08-11
Classification: A47B,A47C,B23K,B29C,B29D,B29K,B29L,B31F,B32B,E04C,F16L,Y10T

Abstract:
1. A continuous corrugated tube comprising: an upper substrate; a middle substrate; and a lower substrate; wherein the middle substrate is fluted and the flutes are fixed to the upper and lower substrates to form a single wall corrugated construct having a top edge and a bottom edge, wherein the flutes are oriented transverse to the top edge and the bottom edge, wherein the top edge of the construct abuts the bottom edge of the construct to form a continuous seam such that the construct forms a spiral tube, and wherein the upper, middle and lower substrates independently comprise one of thermoplastic polymers, thermoset polymers, fiberglass reinforced polymers (FRP), and metal roll stock.