Electrolysis: processes – compositions used therein – and methods – Electrolytic erosion of a workpiece for shape or surface... – Gap maintenance or defined tool-workpiece gap
Reexamination Certificate
2007-09-18
2007-09-18
King, Roy (Department: 1742)
Electrolysis: processes, compositions used therein, and methods
Electrolytic erosion of a workpiece for shape or surface...
Gap maintenance or defined tool-workpiece gap
C204S22400M, C204S242000, C204S297030, C269S021000
Reexamination Certificate
active
10743935
ABSTRACT:
A system and method are described for holding and releasing a workpiece for electrochemical machining. In one embodiment, a workpiece holder has a workpiece surface that couples to the workpiece when negative pressure is applied to provide a seal between the workpiece and the workpiece surface. A plenum located within the workpiece holder has a proximal end capable of being removably coupled to the workpiece. A piston is configured to move upward in the plenum and to lift the workpiece off of the workpiece surface in response to positive pressure being applied.
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Cochran Dustin Alan
Steele Mark Greg
Darby & Darby
King Roy
Seagate Technology LLC
Smith Nicholas A.
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