Head tube for a bicycle frame
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United States of America Patent
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N/A
Issued Date -
Sep 10, 2009
app pub date -
Mar 7, 2008
filing date -
Mar 7, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A head tube for a bicycle frame is aluminum alloy, is formed by stamping an aluminum alloy sheet, which may have an equal thickness or may be a special-shaped sheet having an unequal thickness, and has a rear side, an outer surface, a seam, a soldering layer and at least one bossed pattern. The seam is formed longitudinally on the rear side of the head tube. The soldering layer is formed in the seam of the head tube. The at least one bossed pattern is formed on the outer surface of the head tube and is non planar with the head tube. Because the head tube is formed by stamping, the at least one bossed pattern with intricate edges or corners can be formed easily on the outer surface of the head tube with low manufacturing costs to give the head tube an appeasing aesthetic appearance.
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