Rough cleaning and finish cleaning machine and method

Claim 1

A MACHINE FOR SEQUENTIALLY ROUGH CLEANING AND KNOCKING OUT HARD-TO-DISLODGE DEBRIS FROM WORKPIECES AND THEN FINISH-CLEANING THE SAME, SAID MACHINE COMPRISING, A WORKPIECE RECEIVING DEVICE ADAPTED TO TURN THE WORKPIECE, A BLAST DEVICE ARRANGED TO THROW BLAST MEDIA AT THE WORKPIECE AS IT IS TURNED, A FEED DEVICE FOR DELIVERING BLAST MEDIA TO SAID DEVICE, A FIRST SEPARATOR RECEIVING DEBRIS AND SPENT MEDIA FALLING AWAY FROM SAID WORKPIECE, SAID SEPARATOR HAVING A DEBRIS DISCHARGE AND A PREFFERED MATERIAL DISCHARGE SEPARATE THEREFROM, SAID PREFFERED MATERIAL DISCHARGE NORMALLY DELIVERING TO A SECOND SEPARATOR, A BYPASS CONVEYING OVERLOAD MATERIAL FROM SAID SECOND SEPARATOR INTAKE TO A TEMPORARY STORAGE BIN, A FIRST VALVE CONTROLLING PASSAGE THROUGH SAID BYPASS,A SECOND VALVE CONTROLLING DISCHARGE FROM SAID STORAGE BIN TO SAID FIRST SEPARATOR, WHEREBY SAID MACHINE IS SEQUENTIALLY CONTROLLABLE SO AS TO INTIALLY BLOCK PASSAGE OF MATERIAL FROM SAID STORAGE INTO SAID SEPARATOR SYSTEM WHILE CIRCULATING MATERIAL FALLING FROM SAID WORKPIECE THROUGH SAID SEPARATORS AND SUBSEQUENTLY RECYCLING THE STORED MATERIAL AND THE REUSABLE BLAST MEDIA THROUGH SAID SEPARATORS AND SAID BLAST DEVICE AGAINST SAID WORKPIECE.