Method of coating and coating apparatus
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United States of America Patent
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Issued Date -
Jun 23, 2005
app pub date -
May 3, 2004
filing date -
Dec 18, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
During location-selective coating of areas of a substrate, other areas not to be coated are protected from coating by a mask. In order to provide a rapid location-selective coating of the substrate, a mask (3,3') is arranged between a spray head (2) for spraying a coating material and the substrate (10) and travels with the spray head (2) during the coating process. Provisions are taken to avoid contamination of the mask (3,3') during the coating process. The mask (3,3') can include two elongated elements (3,3'), which define a coating slot, and a paper sheet (5) can be guided over the elongated elements (3,3') to clean them during coating. Alternatively the mask can include two rotating disks, which define the coating slot, and excess coating material can be removed by rotating the disks.
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