Rotary cutter assembly for concrete leveler

Claim 1

A ROTARY CUTTER ASSEMBLY OF GENERALLY CYLINDRICAL CONFIGURATION AND HAVING COAXIAL TRUNNIONS AT THE ENDS THEREOF FOR RECEPTION IN SUPPORTING BEARINGS, SAID ASSEMBLY COMPRISING: (A) AN ELONGATED CYLINDRICAL MANDREL OF RELATIVELY LARGE DIAMETER; (B) A PAIR OF SUPPORTING SHAFTS COAXIAL WITH THE MANDREL, PROJECTING AXIALLY FROM THE OPPOSITE ENDS THEREOF, AND SERVING TO ESTABLISH SAID TRUNNIONS; (C) A RELATIVELY THICK, CIRCULAR, DISK-LIKE ANCHOR MEMBER FIXEDLY SECURED TO ONE END OF SAID MANDREL, COAXIAL THEREWITH, AND OF A DIAMETER SLIGHTLY LARGER THAN THE DIAMETER OF THE MANDREL WHEREBY THE RIM REGION OF THE ANCHOR MEMBER OVERHANGS THE OUTER CYLINDRICAL SURFACE OF THE MANDREL AND PROJECTS RADIALLY OUTWARDLY BEYOND THE SAME TO THUS ESTABLISH AN ANNULAR REACTION FLANGE; (D) A SERIES OF RELATIVELY THIN, FLAT, ANNULAR, DISK-LIKE CUTTERS ENCIRCLING SAID MANDREL AND AXIALLY SLIDABLE THEREON; (E) A SPACER ELEMENT INTERPOSED BETWEEN THE CUTTERS OF EACH PAIR OF ADJACENT CUTTERS; (F) A RELATIVELY THICK, ANNULAR, CLAMPING MEMBER ENCIRCLING SAID MANDREL POSITIONED ADJACENT TO THE OTHER ENDS THEREOF, LIKEWISE AXIALLY SLIDABLE THEREON, AND DISPOSED WHOLLY OUTSIDE THE CYLINDRICAL CONFINES OF THE MANDREL; AND (G) A SERIES OF CIRCUMFERENTIALLY SPACED CLAMPING BOLTS POSITIONED RADIALLY OUTWARDLY FROM SAID MANDREL, EXTENDING THROUGH SAID RELATIVELY THICK REACTION FLANGE, SAID ANNULAR CUTTERS, SAID SPACER ELEMENTS, AND SAID RELATIVELY THICK ANNULAR CLAMPING MEMBER, AND SERVING TO DRAW THE CLAMPING MEMBER AXIALLY TOWARD THE REACTION FLANGE AND THUS COMPRESS THE CUTTERS AND SPACER ELEMENTS COLLECTIVELY TOGETHER AND RIGIDIFY THE CUTTERS AND PROVIDING THE SOLE MEANS TO KEY THE CUTTERS AND SPACER ELEMENTS TO SAID MANDREL.