Patent ID: 6564943
Filing Date: 2003-05-20
Classification: B65D

Abstract:
A container for packaging and unwinding a welding wire, said container comprising: a square cardboard box with four vertical side walls and four vertically extending corners, each defining an apex, a center cylindrical core, an inner vertically extending tubular liner with an octagonal outer shape having four outer walls, each generally overlying a side wall of said box and four alternate inner walls between two of said outer walls and spaced from said corner apexes to define generally triangular, vertical cavities with an at rest dimension from the apex of a corner to one of said alternate inner walls and a vertically extending corner reinforcing element in each of said cavities, said element of each cavity having a diagonal pressure rib extending from said apex to the inner wall defining one of said corner cavities and with a width greater than said at rest dimension of said cavity whereby a coil of welding wire around said core presses on said alternate inner wall of a corner cavity to apply an outer force along said apex of said box corner cavity.