Method of making an abrasive tool

Claim 1

IN THE PROCESS OF MAKING A METAL-BONDED ABRASIVE TOOL HAVING A PRECISC DETERMINATE PATTERN OF CLUSTERS OF ABRASIVE PARTICLES FORMING THE WORKING SURFACE OF THE TOOL, THE STEPS WHICH INCLUDE COATING A TOOL BLANK WITH A THIN LAYER OF ADHESIVE, PLACING A FIRST PATTERN SCREEN HAVING SLOTTED OPENINGS THEREIN IN CLOSE PROXIMITY TO AND NOT MORE THAN .005" FROM THE TOOL BLANK, PLACING OVER THE FIRST PATTERN SCREEN A SECOND PATTERN SCREEN HAVING SLOTTED OPENINGS ARRANGED TO CROSS THE SLOTTED OPENINGS OF THE FIRST PATTERN SCREEN THEREBY TO ESTABLISH A PATTERN OF OPENINGS AT THE INTERSECTIONS OF THE SLOTTED OPENINGS OF THE TWO PATTERN SCREENS, THEN PROPELLING ABRASIVE PARTICLES BY ELECTROSTATIC MEANS THROUGH THE PATTERN OF OPENINGS FORMED BY THE TWO PATTERN SCREENS AND ONTO THE ADHESIVE ON THE TOOL BLANK, THEN DEPOSITING METAL ONTO THE TOOL BLANK TO SURROUND AND SUPPORT THE ABRASIVE PARTICLES AND THEN SEPARATING THE TOOL BLANK AWAY FROM THE DEPOSITED METAL AND THE ABRASIVE HELD THEREIN.