Vacuum variable capacitor
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United States of America Patent
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May 9, 2006
Grant Date -
Dec 1, 2005
app pub date -
May 12, 2005
filing date -
May 28, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A vacuum variable capacitor is includes of a vacuum container which is formed by sealing both end of a cylindrical insulator with a fixed-side end plate and a movable-side end plate, a movable conductive member which is disposed opposite to the fixed-side end plate in the vacuum container, a fixed electrode which is provided on the fixed-side end plate, a movable electrode which is provided on the movable conductive member, a bellows provided in the vacuum container, a rotating portion which is rotatably disposed outside of the vacuum container, and a ball screw through which the movable conductive member is supported by the rotating member.
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