Method and apparatus for patterning of bore surfaces
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United States of America Patent
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-
Jan 23, 2007
Grant Date -
Oct 6, 2005
app pub date -
Mar 3, 2005
filing date -
Mar 3, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus comprises a rotating member having one or more rollers. The one or more rollers have a plurality of protuberances. The rollers may be advanced toward a surface during rotation of the rotating member, such as toward a bore surface. The protuberances are configured to make a pattern of discrete indentations in the surface upon engagement of the protuberances with the surface. The apparatus is particularly suited for creating oil-retention pockets in the surface of an engine cylinder and other uses. The apparatus may be used to create a pattern of oil-retention pockets or other pockets in a cylinder with varying pocket density in a single pass.
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