Automatic balancing apparatus, rotating apparatus, disc...

Details Automatic balancing apparatus, rotating apparatus, disc... Automatic balancing apparatus, rotating apparatus, disc...

2011-02-01

2011-02-01

Blouin, Mark (Department: 2627)

Dynamic optical information storage or retrieval

Particular cabinet structure for optical media

Reexamination Certificate

active

07882512

ABSTRACT:
An automatic balancing apparatus is disclosed. The automatic balancing apparatus includes a housing, magnetic fluid, and a plurality of balancers. The housing is rotatable. The magnetic fluid is contained in the housing. Each of the plurality of balancers is movable in the housing and has a magnet and a yoke which is mounted thereto and which has a raised portion or a depressed portion formed on an inner circumferential side of a rotation of the housing.

REFERENCES:
patent: 6492750 (2002-12-01), Kikuchi et al.
patent: 6606922 (2003-08-01), Case et al.
patent: 2001/0000312 (2001-04-01), Kume et al.
patent: 2006/0109587 (2006-05-01), Shishido et al.
patent: 04-312244 (1992-11-01), None
patent: 2007-172800 (2007-07-01), None
A Japanese Office Action dated Oct. 7, 2008 issued in connection with counterpart Japanese Patent Application No. 2006-288375.

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