Electroformed hollow jewelry

Electrolysis: processes – compositions used therein – and methods – Electroforming or composition therefor – Roll – ring – or hollow body

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205 72, 205 50, C25D 102

Patent

active

058913173

ABSTRACT:
A method of forming a hollow metallic article, comprising the following steps: (a) applying a layer of base metal to a fusible alloy mandrel; (b) applying a layer of precious metal to the layer of base metal; (c) applying a third layer of a non-metallic protective coating to the layer of precious metal; and (d) melting out the fusible alloy mandrel. Hollow articles formed by this method are also disclosed.

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"Electroforming in Gold Jewellery Production" by Dr. Franz Simon, 12 pages, as appeared in Interfinish 92 (no month).
"Forming a Niche" by Clark Heideger as appeared in AJM, Jan. 1996, pp. 40-45.
"Electroforming Technology--Economical Alternatives to Traditional Manufacturing Methods of High Quality Karat Jewelry" by Alan Day and Michael Larochelle as presented at Expo Providence, Apr. 10, 1995, pp. 1-15.
Day and Larochelle, "Economical Alternatives to Traditional Manufacturing Methods for High Quality Karat Jewelry", pp. 1-15, Expo Providence, Apr. 1995.
Dr. Franz Simon, "Electroforming in Gold Jewelry Production"; Interfinish 92, 1992.
O.J. Klingenmaier, "Hard Iron Plating of Aluminum Pistons"; 6th Annual Tech. Conf. of Am. Electroplaters' Soc., Jun. 1974.
Clark Heideger, "Forming a Niche" AJM, Jan. 1996.

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