Patent ID: 7883074
Filing Date: 2011-02-08
Classification: B21F,Y10T

Abstract:
1. A plural coil tape product comprises: a first coil extending from a first end to a second end along a first coil axis; at least a second coil extending generally from a first end to a second end along a second coil axis generally parallel to the first coil axis; and the second coil intersecting the first coil in at least partially overlapping side by side relation, forming a plurality of intersections along the first and second coil axes; at each intersection, the first and second coils are attached to each other and form an internal truss defined by the overlapping portions of the first and second coils wherein the internal truss forms a generally upright linear configuration as viewed from an axial end in a fully deployed state; and a respective plurality of the internal trusses generally form a repeating pattern of upright ovals along the first and second coil axes when viewed from a side.