Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1992-03-20
1994-02-01
Valentine, Donald R.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204224R, 118301, C25D 1700, B05B 1504
Patent
active
052829456
ABSTRACT:
The invention relates to a device for applying dot-shaped coatings to metal or metallized bands by way of an electrolysis process or by way of currentless metal extraction, said device being provided with a wheel-shaped guide mechanism along which a metal or metallized band can be passed, and with an endless masking device, which co-operates with the band during operation and which is provided with passages, whose shape is adapted to the desired dot-shaped coating. The masking device is built up of independent masking segments, which are each provided with at least one passage and which are mutually coupled in such a manner that they can move with respect to each other in the longitudinal direction of the masking device. Inner boundary planes of the masking segments cooperate with a circular supporting surface of the wheel-shaped means, and measured in the longitudinal direction of the masking device the total length of the inner boundary faces is larger than the length of the circular supporting surface of the wheel-shaped means.
REFERENCES:
patent: 3894918 (1975-07-01), Corby et al.
patent: 4405431 (1983-09-01), Pfeifer et al.
patent: 4414075 (1983-11-01), Cockeran
patent: 4493757 (1985-01-01), Piepers
Leonardus Van Sprang Wilhelmus G.
Riscke Jorg W.
MECO Equipment Engineers B.V.
Valentine Donald R.
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