Brushless electroforming apparatus

Details Brushless electroforming apparatus Brushless electroforming apparatus

1994-02-25

1995-12-05

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204219, C25D 1700

Patent

active

054725879

ABSTRACT:
An apparatus is disclosed for depositing metal on a mandrel which provides a brushless electrical current continuity between the mandrel and a current source, comprising: (a) a metal deposition vessel; (b) an electrode disposed in the vessel; (c) a mandrel disposed in the vessel, spaced apart from the electrode; (d) an electrically conductive liquid disposed in the vessel; (e) an electrolytic solution disposed in the tank; (f) a layer of a substantially electrically nonconductive material disposed between the electrolytic solution and the conductive liquid; and (g) connecting means for electrically connecting the mandrel and the conductive liquid, coupled to the mandrel.

REFERENCES:
patent: 2867574 (1959-01-01), Berry
patent: 3844906 (1974-10-01), Bailey et al.
patent: 3876510 (1975-04-01), Wallin et al.
patent: 3954568 (1976-05-01), DuPree

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