US Patent 7900657 Jaw for sealless strapping machine

A jaw for a sealless strapping machine includes a jaw element having a body that defines a linkage portion, a hook portion and a base portion. The hook portion extends transverse to the leg portion. The linkage portion, hook portion and base portion are contiguous and are formed from a single piece of material. The jaw element includes a plurality of punches extending upwardly from the base portion, and define a juncture of the punches and the base. Each punch is defined by a peak and a valley between the peak and the peak of an adjacent punch. The juncture of the punches and the base is formed as a relieved having a smooth radii transitions along the relieved area.