Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1992-08-03
1993-07-06
Valentine, Donald R.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204218, 204224R, 204228, 204271, 204275, C25D 1714, C25D 1700, C25D 2100
Patent
active
052250598
ABSTRACT:
An apparatus for electroplating conductive surfaces, in particular rotatable surfaces. A hand held anode includes a porous surface material such as polypropylene wool, backed by an inert anode mounted on a handle and connected to a source of direct current. A delivery tube through the anode handle allows liquid to be delivered to the surface material. A manually actuatable valve system on the anode handle permits liquids from a selected one of plural supply tubes to be connected to the delivery tube. In operation, the anode is connected to a positive polarity direct current sources, a plating liquid is directed from a supply to the valve system, then to the anode surface material through the delivery tube. Depending on the direct current polarity selected and the liquid selected for delivery to the anode material, the workpiece surface may be cleaned, treated or plated. A series of movable trays are positioned below the workpiece to catch liquid that may drip from the anode surface material. This system permits the rapid and convenient electroplating of selected areas on a workpiece without contamination between different process liquids.
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Gilliam Frank D.
Valentine Donald R.
W. R. Associates
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