Patent ID: 11084185

Abstract:
An apparatus for forming horizontal and linear score at a predefined depth or adjustable depth in a plurality of curb sections or a similar concrete or masonry structure. The apparatus comprises a frame, two-axis of linear bearings guides, angle grinder, cutting blades, and protective shield. The frame is secured in the curb section or structure through stakes to penetrate a ground or slip into holes of a horizontal surface. The frame includes a plurality of first adjustment units to allow adjustments for heights according to the height of curb section, and second adjustment units to allow adjustments for depths according to the depth of the curb section. A horizontal linear bearing guide rides up and down on a vertical linear bearing guide and restricted by a height adjustment mechanism. The angle grinder hanged on a mount attached to the linear bearing. The protective shield covers the plurality of cutting blades and further attached to a water supply to provide a spray on the plurality of cutting blades.