Patent ID: 7297402

Claim:
A shaped particle having a geometry including a length and a cross sectional geometry at at least one point along said length, wherein said cross sectional geometry is defined by an asymmetrical shape having an imaginary dividing line providing for an upper end, having an upper end cross sectional area, and a lower end, having a lower end cross sectional area, wherein said upper end cross sectional area is greater than said lower end cross sectional area, wherein said cross sectional geometry is further defined by a circle perimeter having a diameter and a center through which said imaginary dividing line passes; wherein said cross sectional geometry defines a plurality of grooves wherein each groove of said plurality of grooves is characterized by a groove depth, a leading edge and a trailing edge with said leading edge and said trailing edge spaced apart by a groove opening rotational distance; wherein said leading edge of each groove of said plurality of grooves is spaced apart from said trailing edge of an adjacent groove by a rotational distance; and wherein the summation of all of said groove opening rotational distances and all of said rotational distances of said cross sectional geometry is 360°.