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Class Information
Number: 205/652
Name: Electrolysis: processes, compositions used therein, and methods of preparing the compositions > Electrolytic erosion of a workpiece for shape or surface change (e.g., etching, polishing, etc.) (process and electrolyte composition) > Gap maintenance or defined tool-workpiece gap
Description: Process in which a method is recited for keeping a gap or spacing between the tool and workpiece essentially constant or in which this gap or spacing is mathematically specified.


Sub-classes under this class:

Class Number Class Name Patents
205/654 Moving tool electrode 56
205/653 Using tool electrode with two or more holes for passage of electrolyte 19


Patents under this class:
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Patent Number Title Of Patent Date Issued
7427345 Method and device for regenerating ion exchanger, and electrolytic processing apparatus Sep. 23, 2008
7344623 System and method for radially positioning a workpiece for electrochemical machining Mar. 18, 2008
7270735 System and method for holding and releasing a workpiece for electrochemical machining Sep. 18, 2007
7255778 Electrochemical machining method and apparatus Aug. 14, 2007
7208076 Substrate processing apparatus and method Apr. 24, 2007
7204926 Tandem blisk electrochemical machining Apr. 17, 2007
7144482 Method and apparatus for forming grooves within journals and on flat plates Dec. 5, 2006
7063601 Internal magnetic-force polishing system Jun. 20, 2006
7056429 Push belt, ring element and method and device for electrochemical machining thereof Jun. 6, 2006
6913683 Method and device for the production of pipe segments from a hollow pipe Jul. 5, 2005
6875335 Electrolytic machining method and apparatus Apr. 5, 2005
6866769 Drive head and ECM method and tool for making same Mar. 15, 2005
6858125 Multi-axis numerical control electromachining of bladed disks Feb. 22, 2005
6855239 Plating method and apparatus using contactless electrode Feb. 15, 2005
6852208 Method and apparatus for full surface electrotreating of a wafer Feb. 8, 2005
6756307 Apparatus for electrically planarizing semiconductor wafers Jun. 29, 2004
6743349 Electrochemical machining method and apparatus Jun. 1, 2004
6723223 Electrochemical machining method with optimal machining pulse duration Apr. 20, 2004
6689269 Method for electrochemically processing material Feb. 10, 2004
6660138 Electropolishing process means for an inner surface of a long tube Dec. 9, 2003
6652658 Method for machining/cleaning by hydroxide ion in ultrapure water Nov. 25, 2003
6620307 Method for a removal of cathode depositions by means of bipolar pulses Sep. 16, 2003
6602396 Electrolytic machining method and apparatus Aug. 5, 2003
6562226 Electrochemical machining method May. 13, 2003
6488834 Blade re-sharpener and method Dec. 3, 2002
6482307 Method of and apparatus for making electrical contact to wafer surface for full-face electroplating or electropolishing Nov. 19, 2002
6423206 Method for electrochemical roughening of a substrate Jul. 23, 2002
6398941 Method of shaping a workpiece using an electrochemical machining tool Jun. 4, 2002
6368493 Electrolytic machining method and apparatus Apr. 9, 2002
6355148 Diaphragm workholding device for ECM Mar. 12, 2002
6355156 Method of monitoring electrochemical machining process and tool assembly therefor Mar. 12, 2002
6325912 Apparatus and method for electrolytic treatment Dec. 4, 2001
6315885 Method and apparatus for electropolishing aided by ultrasonic energy means Nov. 13, 2001
6312584 Method and apparatus for electrochemically machining a workpiece Nov. 6, 2001
6267868 Method and tool for electrochemical machining Jul. 31, 2001
6245212 Method of providing a metal bearing component with a pattern by electrochemical machining and an apparatus therefor Jun. 12, 2001
6214200 Method and arrangement for the electrochemical machining of a workpiece Apr. 10, 2001
6203689 Electropolishing apparatus and method Mar. 20, 2001
6176998 Method of electrochemically machining a bearing ring Jan. 23, 2001
6139715 Electrochemical deburring or radiusing Oct. 31, 2000
6099715 Method for electrochemical treatment, especially for polishing Aug. 8, 2000
5993637 Electrode structure, electrolytic etching process and apparatus Nov. 30, 1999
5904831 Method of electrochemically machining workpieces May. 18, 1999
5863412 Etching method and process for producing a semiconductor element using said etching method Jan. 26, 1999
5833835 Method and apparatus for electrochemical machining by bipolar current pulses Nov. 10, 1998
5820744 Electrochemical machining method and apparatus Oct. 13, 1998
5804052 Method and device for continuous uniform electrolytic metallizing or etching Sep. 8, 1998
5766446 Electrochemical removal of material, particularly excess emitter material in electron-emitting device Jun. 16, 1998
5672263 Method and apparatus for electrochemically machining a workpiece Sep. 30, 1997
5641391 Three dimensional microfabrication by localized electrodeposition and etching Jun. 24, 1997

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