Ink blade adjusting mechanism having shape memory material actuator
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United States of America Patent
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Jan 27, 2004
Grant Date -
Dec 26, 2002
app pub date -
May 16, 2002
filing date -
May 17, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to an adjusting mechanism for zonal control of an ink blade (2) in respect of a ductor roller surface (5) in a printing press. The adjusting mechanism comprising a plurality of moving means (1) in contact with the ink blade and movable in a longitudinal direction (P1, P2) towards and away from said ductor roller. Each moving mean comprises at least one bar (6) of a shape memory material (SMM) and activating means (7) to provide e.g. a magnetic field strength (H.+-..DELTA.H) bar(s). A controlled electrical voltage/current (U, I) is fed into the activating means, whereupon a variable length (L.+-..DELTA.L) of said bar is determined for said adjustment.
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