Device for applying dot-shaped coatings
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United States of America Patent
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Feb 1, 1994
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N/A
app pub date -
Mar 20, 1992
filing date -
Apr 12, 1991
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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.
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