Extruded products and method and apparatus

Abstract From the Canadian patent

Variegated extruded product having multiple patterns through the body of the product, each of which pattern is a roughly concentric or spirally striped pattern and which patterns are preferably arranged in approximate symmetry. Such product can be made by feeding a first viscous product through a tube rotationally introducing a second, different viscous product into the first one while preventing homogeneous mixing and conducting this composite stream along at least one divider arranged with one main dimension substantially in the flow direction of said stream. Fig. 1