Abrading – Precision device or process - or with condition responsive... – Condition responsive control for sandblasting
Reexamination Certificate
2005-02-22
2008-11-25
Eley, Timothy V (Department: 3724)
Abrading
Precision device or process - or with condition responsive...
Condition responsive control for sandblasting
C451S008000, C451S011000, C451S075000
Reexamination Certificate
active
07455568
ABSTRACT:
A water jet-processing machine comprising a workpiece holding table having a holding surface for holding a workpiece, a nozzle for emitting a jet of processing water to the workpiece held on the holding surface of the workpiece holding table, a processing water supply means for supplying processing water containing abrasive grains to the nozzle and a moving means for moving the nozzle in a direction perpendicular to the holding surface of the workpiece holding table, whereinthe machine further comprises processing sound wave detection means for detecting a processing sound wave generated by processing water ejected from the nozzle to the workpiece and a control means for controlling the moving means based on a detection signal detected by the processing sound wave detection means.
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Disco Corporation
Eley Timothy V
Smith , Gambrell & Russell, LLP
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