Method for Providing a Metal Piece of a Musical Instrument with a Pattern that Exhibits Various Visual Effects
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United States of America Patent
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Issued Date -
Jan 3, 2019
app pub date -
Jun 25, 2018
filing date -
Jun 25, 2018
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Abstract
A metal piece is provided with a pattern that exhibits different visual effects when it is viewed at different angles. At first, an as-cast metal piece is provided. Then, the metal piece is polished. The metal piece is cleaned. A layer is provided on the metal piece by providing colorant on the metal piece. An outline is provided on the bottom layer. A portion of the bottom layer is removed from the outline. Grooves are made in the outline before the metal piece is cleaned again. The grooves extend in a desired sense of direction and are at a desired depth. A colored pattern is provided by filling colorant in the outline. The colored pattern is dried. Grooves are made in the colored pattern before the metal piece is cleaned again. A protective layer is provided on the bottom layer and the colored pattern. The protective layer is dried.
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