SPINDLE DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Mar 5, 2020
app pub date -
Aug 26, 2019
filing date -
Aug 26, 2019
priority date (Note) -
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Abstract
In a spindle device, a movable member is provided on a cover member, which is attached to a spindle housing and covers the outer peripheral surface of a chuck portion which is a disk-shaped rotating member. The movable member is moved by a gas flowing through a flow passage formed in the cover member and thereby brought into contact with the chuck portion. The movable member is electrically connected to a ground.
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