Marking head for electrochemical process

Details Marking head for electrochemical process Marking head for electrochemical process

1981-04-06

1982-10-19

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204290R, 204294, 204228, 204271, 346 76PH, C25D 1714, C25D 2100, C25B 1112, G01D 1510

Patent

active

043549144

ABSTRACT:
A marking head for use in the electrochemical process wherein a conductive metal part is imaged by firing electrodes against the part in the presence of an electrolyte. The marking face of the head contains an imaging board that includes seven segment digit modules that are capable of being fired in a pre-programmed order whereupon the characters recorded upon the part can be sequenced in a desired order. The segments are printed upon a copper coated board using a photoetching technique which leaves behind a copper coating in the segmented areas. Each segment is then coated with a carbon based material to provide a series of electrodes that can be efficiently operated in the presence of an electrolyte without breaking down.

REFERENCES:
patent: 2486985 (1949-11-01), Ruderfer
patent: 3719261 (1973-03-01), Heinzer et al.
patent: 3912368 (1975-10-01), Ponjee et al.

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