ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,020, issued on Oct. 28, was assigned to JPL GLOBAL LLC (Perris, Calif.).
"Circular saw apparatus with integrated multistage filtration system" was invented by Paul W. Guth (Menifee, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Various dust collection apparatuses are disclosed, which include a vacuum source, a circular saw blade, and a worktable comprising a center slot axially aligned to the circular saw blade. In a first aspect, the center slot includes an air flow channel proximate to an anticipated point of contact between the circular saw blade and a workpiece, and the vacuum source is configured to provide a focused negative pressure b...