Concentric double sleeve for a rotary printing cylinder
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United States of America Patent
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-
Jul 21, 1998
Grant Date -
N/A
app pub date -
Mar 11, 1996
filing date -
Mar 14, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
An inner sleeve portion in the form of a spacer sleeve is disclosed for being torsionally rigidly mounted on a rotogravure or flexographic mandrel that is to be rotated about its axis when used in a printing machine. The outer surface of the inner sleeve portion torsionally rigidly supports by an interference fit, an outer sleeve portion (the printing sleeve) that carries the printing matrices. The inner sleeve portion has a plurality of air channels extending from the inner surface through the outer surface. Pressurized air flowing through the channels assists in expanding the diameter of the innermost surface of the outer sleeve portion for alternatively mounting the outer sleeve portion onto the inner sleeve portion and dismounting the outer sleeve portion from the inner sleeve portion.
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