| Patents for C25D 21 - Processes for servicing or operating cells for electrolytic coating (5,798) |
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| 03/24/1994 | DE4231879A1 Recovering sodium aluminate solution from an aluminium etchant bath - to use as phosphate precipitating agent in clarifying plant |
| 03/24/1994 | DE4231273A1 Badkontrolle Kupfer-haltiger Metallbehandlungsbäder Bath control copper-containing metal treatment baths |
| 03/24/1994 | DE4231028A1 Treatment of aq. liq. resulting from metal surface treatment - by passage through the electrode spaces of an electrodialysis unit |
| 03/23/1994 | EP0587933A1 Use of a Zn-Ni alloy for preparation of Zn-Ni alloy electroplating bath, use of a Zn-Ni alloy for preparation of Zn-Ni alloy hot-dip galvanizing plating bath, and method for producing a Zn-Ni alloy |
| 03/16/1994 | EP0586770A1 Rack-support for surface treatment with baths and its manufacturing process |
| 03/16/1994 | EP0586456A1 Method for preventing evaporation of a liquid from a basin and spreading of particulate material carried by vapor drops to the surroundings. |
| 03/16/1994 | CA2105724A1 Method and apparatus for electrolytically plating copper |
| 03/08/1994 | US5292424 Maintaining equal flux density by switching anodes on and off |
| 03/03/1994 | DE4229061A1 Values and water recovery from aq. process liq. - by membrane distillation giving recyclable concentrate and distillate usuable instead of deionised water |
| 03/02/1994 | EP0584096A1 Process and device for electrolytically coating a steel object on one or both sides. |
| 02/22/1994 | US5288382 Optical fine processing apparatus |
| 02/16/1994 | EP0583057A1 Rotating cylinder throwing power electrode |
| 02/10/1994 | DE4225961A1 Appts. for electroplating copper@ plating flat, plate or arcuate components - has voltage source including at least one adjustable rectangular pulse generator |
| 01/26/1994 | EP0502901B1 Process and device for dissolving high-purity zinc in an electrolyte |
| 01/04/1994 | US5275711 Rotating cylinder-throwing power electrode |
| 12/15/1993 | EP0573743A2 Process for electrolytic decontaminating or regenerating a cyanide containing aqueous solution and apparatus for performing this process |
| 12/14/1993 | US5269905 Apparatus and process to regenerate a trivalent chromium bath |
| 12/11/1993 | CA2097869A1 Process for electrolytically detoxifying or regenerating an aqueous solution containing cyanide and an apparatus for carrying out the process |
| 12/02/1993 | DE4212045C1 Chemical and/or electrolytic treatment of workpieces - with submerged workpieces following closed three=dimensional curve |
| 11/30/1993 | US5266212 Precipitation of copper-organophosphonate compounds by addition of simple carboxylic acids(or salts) leaves soluble impurities in solution |
| 11/30/1993 | US5265670 Convection transfer system |
| 11/18/1993 | EP0452471A4 Protection of lead-containing anodes during chromium electroplating |
| 11/11/1993 | WO1993022481A1 Phosphating process |
| 11/10/1993 | EP0568733A2 Low profile copper foil and process and apparatus for making bondable metal foils |
| 10/26/1993 | CA1323598C Electrolytic processing cell with easy electrode replacement |
| 10/12/1993 | US5252192 Electrolytic pump |
| 10/06/1993 | EP0563782A2 Optical fine processing apparatus |
| 09/30/1993 | DE4209732A1 Installation for applying galvanic coatings to elongate metal objects - with fixed guideway plates and a rotatable carrier shaft with transport arms |
| 09/28/1993 | US5248398 Electrowinning |
| 09/21/1993 | US5246559 Electrolytic cell apparatus |
| 08/19/1993 | DE3943669C2 Vibration device on electrolytic treatment appts. |
| 08/18/1993 | EP0555640A1 Method for operating an electrochemical bath and device for carrying out the method |
| 08/18/1993 | EP0555263A1 Device for coating workpieces used in the dental field. |
| 08/18/1993 | CN2140374Y Electrolysis ferrite electroplating waste water treatment equipment |
| 08/17/1993 | US5236571 Electrode and method for measuring levelling power |
| 08/10/1993 | US5234572 Using soluble electrode of same metal as one in bath and a counter electrode; controlling electricity to prevent deposits of dissolving metal on counter electrode |
| 08/04/1993 | CN1074958A Process for recovery of waste chrome-plating bath solution by concentration, smelting and purifying |
| 07/22/1993 | DE4201466A1 Appts. for mfg. of reinforced coatings of cylinder surfaces - operates by feeding bath-liq. into bore-holes using dispensing appts. connected via distribution appts. to reservoirs |
| 07/22/1993 | DE4200849A1 Conditioning of rinse water from chemical and/or electrolytic surface treatment - includes passing rinse water from 1st tank of multistage rinse to electrodialysis unit and concentrate to treatment bath via selective ion exchanger and/or evaporator |
| 07/21/1993 | EP0552128A1 Process for removal of carbonate from electroplating baths |
| 07/20/1993 | US5228976 Hydrodynamically modulated hull cell |
| 07/16/1993 | CA2087046A1 Method of removing carbonates from plating baths |
| 07/13/1993 | US5226317 Method for measuring concentration of nonvolatile contents of electrodeposition paint |
| 07/07/1993 | EP0550002A1 Method of electrotinning |
| 06/29/1993 | US5223119 Containing gases over electroplating bath, evacuating into water scrubbing bath, passing through mist separator and submicron filter, discharging |
| 06/29/1993 | US5223118 Method for analyzing organic additives in an electroplating bath |
| 06/22/1993 | US5220934 Automatic continuous processing apparatus |
| 06/16/1993 | EP0546643A1 Process, means and apparatus for the electrodialytic regeneration of the electrolyte of a galvanic bath or the equivalent |
| 06/09/1993 | EP0545858A2 Electrolytic treatment of an acid solution |
| 06/09/1993 | EP0545092A2 An apparatus and method for controlling an electrolytic treatment of a subject material |
| 06/08/1993 | US5217598 Using controlled streams of rising air bubbles to stir electrolytic solution gives uniform defect-free plating |
| 06/03/1993 | DE4217220C1 Electrochemical surface treatment - with a separate precipitation zone screened from a microwave heating zone |
| 06/01/1993 | US5215646 Low profile copper foil and process and apparatus for making bondable metal foils |
| 06/01/1993 | US5215593 Placing substrate in container of boiling vapor; raising through liquid curtain; washing entire surface before exposure to air |
| 05/27/1993 | WO1993009865A1 Process, medium and device for electrodialytically regenerating the electrolyte of a galvanic bath or the like |
| 05/18/1993 | US5211819 Micro-effluent process for rinsing water in industrial processing |
| 05/12/1993 | CN1071978A Process for regeneration of aging liquid used in chrome-plating |
| 05/06/1993 | DE4203646C1 Bath for electrochemical deposition of metal (alloys) |
| 05/05/1993 | EP0539390A1 Process for moving an item with drillings during its wet chemical treatment, e.g. galvanisation, and device for implementing the process |
| 05/04/1993 | US5207881 Apparatus for continuous electrolytic treatment of aluminum article |
| 04/21/1993 | EP0538081A1 Improved process for electroplating a metal strip |
| 04/15/1993 | DE4133561A1 Coating prods. in electrolytic bath - by superimposing linear up=and=down motion of prods. in bath with motion of prod. carrier with horizontal circular motion |
| 04/07/1993 | EP0535366A1 Apparatus for surface treatment of three-dimensional injection moulded objects |
| 04/06/1993 | US5200055 System and method for chrome recovery |
| 04/06/1993 | US5200048 With supports for bearings which can be inserted into plating cases in tanks |
| 03/31/1993 | EP0533852A1 Improvements to current generation and control systems for electrolytic processes |
| 03/23/1993 | US5196096 Polarography |
| 03/17/1993 | CN1020119C Full-automatic electroplating waste water treatment technology with maximum energy-saving |
| 03/16/1993 | US5194095 Environmental waste-control process for spray rinsing chemically treated articles |
| 03/10/1993 | EP0531223A1 Process for regenerating nickel plating baths containing nickel sulfamate and permitting a verification of the nickeling aptitude of the bath |
| 03/09/1993 | USRE34191 Process for electroplating metals |
| 03/09/1993 | US5192418 Metal recovery method and system for electroplating wastes |
| 03/09/1993 | US5192403 Cyclic voltammetric method for the measurement of concentrations of subcomponents of plating solution additive mixtures |
| 02/23/1993 | US5188719 Electrolytic processing system |
| 02/20/1993 | CA2070458A1 Process for electroplating |
| 02/16/1993 | US5186811 Method of manufacturing printed wiring boards |
| 02/04/1993 | WO1993002224A1 Coating substrates |
| 02/03/1993 | CN1068549A Method for purifiction of water |
| 01/27/1993 | EP0524748A1 Metal ion replenishment to plating bath |
| 01/26/1993 | US5182139 Ultrasonic realtime determination and display of thickness of chromium on gun barrels |
| 01/26/1993 | US5182131 Plating solution automatic control |
| 01/26/1993 | US5182009 Plating process |
| 01/21/1993 | DE4124183A1 Appts. for removing treatment liq. from parts - has liq. sucked into chamber after spray treatment and passed through cascade columns to remove treatment liq. and recycle spray liq. |
| 01/20/1993 | EP0523677A2 Method and apparatus for anodic oxidation treatment |
| 01/14/1993 | DE4121965A1 Treatment of rinsing water for galvanic baths - with maintenance of a constant electrolyte concn. |
| 01/14/1993 | DE4109621C1 Immersed unit for electrolytic bath, e.g. heater or temp. controller - has connection head divided into 2 chambers, immersion tube in 1st chamber and electrical connecting lead entering 2nd chamber |
| 01/13/1993 | CN1067932A Vacuum bubble-obviating method for electric casting |
| 01/12/1993 | US5178746 Method for purification of trivalent chromium electroplating baths |
| 01/07/1993 | EP0521749A1 Process and apparatus for regulating a metallurgical treatment made on a moving substrate |
| 01/05/1993 | US5176813 Protection of lead-containing anodes during chromium electroplating |
| 01/02/1993 | CA2070943A1 Process for the regulation of a moving product metallurgical treatment, and means for the implementation of this process |
| 12/30/1992 | EP0520324A1 Apparatus for treating panel-type objects, especially circuit boards |
| 12/24/1992 | DE4219979A1 Control installation in a galvanising plant - has measuring heads with feelers to measure distance between strip edge and head w.r.t. predetermined value obtd. by feeler, for automatic adjustment of masks |
| 12/23/1992 | EP0518867A1 Fully automatic current control system for metal depletion cells |
| 12/23/1992 | EP0518866A1 Electrolytic cell for electrolysis of process liquid |
| 12/22/1992 | US5173170 Process for electroplating metals |
| 12/22/1992 | US5173161 Device for applying and/or removing coatings on workpieces |
| 12/10/1992 | DE4117760C1 Electrolytically surface treating tube in treatment tank - using covered tanks connected by flexible pipes, with air exhausted through pipes preventing uncontrolled escape of vapour |
| 12/01/1992 | US5167791 Process for electrolytic deposition of iron |
| 12/01/1992 | US5167779 Uniform plating of through-holes in printed circuits |