Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1980-03-31
1981-03-31
Tufariello, T. M.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204DIG7, C25D 1700
Patent
active
042591660
ABSTRACT:
In an apparatus for plating the cylindrical flat surface of a metal substrate which is seated in a recess in a substrate case, a shield is mounted on the case around the edge of the surface of the substrate. The shield has an opening therethrough of a diameter adjacent the substrate substantially equal to the diameter of the surface of the substrate, and at the top surface thereof smaller than the diameter of the substrate so as to extend over the substrate. The portion of the opening adjacent the substrate is beveled radially inwardly at an angle of between 45 degrees and 60 degrees.
REFERENCES:
patent: 2675348 (1954-04-01), Greenspan
patent: 2751345 (1956-06-01), Osman
patent: 2890160 (1959-06-01), Hunting
patent: 3414502 (1968-12-01), Porrata
Cohen Donald S.
Morris Birgit E.
RCA Corporation
Tufariello T. M.
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