Masking of elongate three dimensional objects for the exposure o

Details Masking of elongate three dimensional objects for the exposure o Masking of elongate three dimensional objects for the exposure o

1982-01-15

1983-09-20

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204224R, 204297W, C25D 502, C25D 1704

Patent

active

044054106

ABSTRACT:
Surface treatment, for example precious metal plating, on preselected areas of elongate three dimensional objects is obtained by applying a masking member, at least to the ends of the objects. The masking member has a shape such that when the objects are inserted into bores in the member, predetermined areas are exposed where the bores open out through the member. A typical shape is a dumb-bell shape, with the central web portion of the same dimension as the bores. Thus the bores break through. The objects, for example terminal pins, are mounted on a support strip in spaced array and a plurality of masking members attached prior to passing through treatment tanks, for example plating tanks. The masking members are then removed.

REFERENCES:
patent: 2475434 (1949-07-01), Moss
patent: 2721839 (1955-10-01), Taylor
patent: 3254004 (1966-05-01), Jackson
patent: 3972785 (1976-08-01), Palisin

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