Cathode assembly
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United States of America Patent
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Nov 4, 1997
Grant Date -
N/A
app pub date -
Jul 8, 1996
filing date -
Jul 8, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A magnetic yoke (22,23) carrying rows of permanent magnets (33,34) and a target (49,50) is connected to a top plate (41,42) by spring bolts (67) which urge the yoke toward the top plate. Rotatable cams (43,44) between the top plate and the yoke are used to adjust the distance between the top plate and the yoke. Clamping bars (37,38) having a claw-like edge parts (59-66) limit the maximum distance and, in a preferred embodiment, hold the target against the yoke.
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