Patent ID: 7152596

Claim:
A circular saw blade, comprising: a circular saw body having a mounting hole, an outer peripheral edge, and a circular body portion between said mounting hole and said peripheral edge, said circular body portion having three integrally connected disc-like portions, a circular center portion, a circular cutting portion, and a circular cooling portion, wherein said circular center portion is a planar disc-like element formed around said mounting hole, wherein said circular cutting portion is a planar disc-like element comprising a plurality of cutting teeth evenly formed along said peripheral edge to define a cutting groove between each of said two cutting teeth, wherein said circular cooling portion is a planar disc-like element integrally connected between said circular center portion and said circular cutting portion; and a cooling arrangement having a plurality of aperture sets formed in said circular cooling portion of said circular saw body, wherein each said cutting groove in said circular cutting portion inwardly projects a groove line therefrom, said groove line extending from said cutting groove to said circular cooling portion, each of said aperture sets in said cooling portion having one or more through holes spacedly formed along said groove line of each of said cutting groove in said cooling portion, wherein said cooling arrangement in circular cooling portion is provided for the cooling of said circular saw body during operation, wherein each of said groove lines extends inwardly in a non-radial manner with respect to a radial line of said circular saw body, wherein said radial line extends inwardly from said peripheral edge to a center of said circular saw body, wherein said groove line and said radial line define an acute cutting angle.