US Patent 12133612 Blade means for a mixer

A blade means for a mixer, such as for example an immersion blender or stand mixer includes a rotational shaft; at least one blade which extends from the rotational shaft and has at least one cutting edge; and a plurality of serrations which are formed in the at least one cutting edge. The individual serrations are spaced apart from one another by a planar portion of the at least one cutting edge, wherein the planar portion of the at least one cutting edge is less sharp than the serrations.