Patent ID: 7578408
Filing Date: 2009-08-25
Classification: B21F,B44C

Abstract:
1. A patterned frame structure comprising: a first wire frame element having a central area and a plurality of petal-shaped portions extending upwardly from said central area, said central area defined by a first wire perimeter, each of said plurality of petal-shaped portion defined by a first wire shape; a second wire frame element having a central area and a plurality of petal-shaped portions extending from said central area, said central area of said second wire frame element defined by a second wire perimeter, each of said plurality of petal-shaped portions of said second wire frame element defined by a second wire shape; and a third wire frame element having a central area and a plurality of petal-shaped portions extending from said central area, said central area of said third wire frame element defined by a third wire perimeter, each of said plurality of petal-shaped portions of said third wire frame defined by a third wire shape, the wires of each of said first, second and third wire frame elements overlapping each other, said first wire perimeter having an area less than an area of said second wire perimeter, said second wire perimeter having an area less than an area of said third wire perimeter, said first wire shape having an area greater than an area of said second wire shape, said second wire shape having an area greater than an area of said third wire shape.